Towards the discovery of new physics with lepton-universality ratios of b → s ℓ ℓ decays

Geng, Li-Sheng; Grinstein, Benjamín; Jäger, Sebastian; Martin Camalich, Jorge; Ren, Xiu-Lei; Shi, Rui-Xiang

doi:10.1103/PhysRevD.96.093006

Title: Towards the discovery of new physics with lepton-universality ratios of $b \to s ℓ ℓ$ decays

Abstract

Tests of lepton-universality as rate ratios in $$b{\rightarrow}s{\ell}{\ell}$$ transitions can be predicted very accurately in the Standard Model. The deficits with respect to expectations reported by the LHCb experiment in muon-to-electron ratios of the $$B{\rightarrow}{K}^{(*)}{\ell}{\ell}$$ decay rates thus point to genuine manifestations of lepton nonuniversal new physics. In this paper, we analyze these measurements in the context of effective field theory. First, we discuss the interplay of the different operators in $${R}_{K}$$ and $${R}_{{K}^{*}}$$ and provide predictions for $${R}_{{K}^{*}}$$ in the Standard Model and in new-physics scenarios that can explain $${R}_{K}$$. We also provide approximate numerical formulas for these observables in bins of interest as functions of the relevant Wilson coefficients. Secondly, we perform frequentist fits to $${R}_{K}$$ and $${R}_{{K}^{*}}$$. The Standard Model disagrees with these measurements at $$3.7{\sigma}$$ significance. We find excellent fits in scenarios with combinations of $${\mathcal{O}}_{9(10)}^{{\ell}}=\overline{s}{{\gamma}}^{{\mu}}{b}_{L}{\ell}{{\gamma}}_{{\mu}}({{\gamma}}_{5}){\ell}$$ operators, with pulls relative to the Standard Model in the region of $$4{\sigma}$$. An important conclusion of our analysis is that a lepton-specific contribution to $${\mathcal{O}}_{10}$$ is important to understand the data. Under the hypothesis that new-physics couples selectively to the muons, we also present fits to other $$b{\rightarrow}s{\mu}{\mu}$$ data with a conservative error assessment and comment on more general scenarios. Finally, we discuss new lepton universality ratios that, if new physics is the origin of the observed discrepancy, should contribute to the statistically significant discovery of new physics in the near future.

Authors:: Geng, Li-Sheng; Grinstein, Benjamín; Jäger, Sebastian; Martin Camalich, Jorge; Ren, Xiu-Lei; Shi, Rui-Xiang

Publication Date:: Fri Nov 17 00:00:00 EST 2017

Research Org.:: Univ. of California, San Diego, CA (United States); Beihang Univ., Beijing (China); Peking Univ., Beijing (China); Univ. of Sussex, Brighton (United Kingdom)

Sponsoring Org.:: USDOE Office of Science (SC), High Energy Physics (HEP); National Natural Science Foundation of China (NSFC); Science and Technology Facilities Council (STFC) (United Kingdom)

OSTI Identifier:: 1409227

Alternate Identifier(s):: OSTI ID: 1498882

Grant/Contract Number:: SC0009919; 11375024; 11522539; ST/L000504/1

Resource Type:: Published Article

Journal Name:: Physical Review D

Additional Journal Information:: Journal Name: Physical Review D Journal Volume: 96 Journal Issue: 9; Journal ID: ISSN 2470-0010

Publisher:: American Physical Society

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; effective field theory; hypothetical particle physics models; rare decays

Citation Formats


                    Geng, Li-Sheng, Grinstein, Benjamín, Jäger, Sebastian, Martin Camalich, Jorge, Ren, Xiu-Lei, and Shi, Rui-Xiang. Towards the discovery of new physics with lepton-universality ratios of b → s ℓ ℓ decays.  United States: N. p., 2017. 
Web.  doi:10.1103/PhysRevD.96.093006.

Copy to clipboard


                    Geng, Li-Sheng, Grinstein, Benjamín, Jäger, Sebastian, Martin Camalich, Jorge, Ren, Xiu-Lei, & Shi, Rui-Xiang. Towards the discovery of new physics with lepton-universality ratios of b → s ℓ ℓ decays.  United States.  https://doi.org/10.1103/PhysRevD.96.093006

Copy to clipboard


                    Geng, Li-Sheng, Grinstein, Benjamín, Jäger, Sebastian, Martin Camalich, Jorge, Ren, Xiu-Lei, and Shi, Rui-Xiang. Fri .  
"Towards the discovery of new physics with lepton-universality ratios of b → s ℓ ℓ decays".  United States.  https://doi.org/10.1103/PhysRevD.96.093006.

Copy to clipboard


                    
@article{osti_1409227,

  title        = {Towards the discovery of new physics with lepton-universality ratios of b → s ℓ ℓ decays},

  author       = {Geng, Li-Sheng and Grinstein, Benjamín and Jäger, Sebastian and Martin Camalich, Jorge and Ren, Xiu-Lei and Shi, Rui-Xiang},

  abstractNote = {Tests of lepton-universality as rate ratios in $b{\rightarrow}s{\ell}{\ell}$ transitions can be predicted very accurately in the Standard Model. The deficits with respect to expectations reported by the LHCb experiment in muon-to-electron ratios of the $B{\rightarrow}{K}^{(*)}{\ell}{\ell}$ decay rates thus point to genuine manifestations of lepton nonuniversal new physics. In this paper, we analyze these measurements in the context of effective field theory. First, we discuss the interplay of the different operators in ${R}_{K}$ and ${R}_{{K}^{*}}$ and provide predictions for ${R}_{{K}^{*}}$ in the Standard Model and in new-physics scenarios that can explain ${R}_{K}$. We also provide approximate numerical formulas for these observables in bins of interest as functions of the relevant Wilson coefficients. Secondly, we perform frequentist fits to ${R}_{K}$ and ${R}_{{K}^{*}}$. The Standard Model disagrees with these measurements at $3.7{\sigma}$ significance. We find excellent fits in scenarios with combinations of ${\mathcal{O}}_{9(10)}^{{\ell}}=\overline{s}{{\gamma}}^{{\mu}}{b}_{L}{\ell}{{\gamma}}_{{\mu}}({{\gamma}}_{5}){\ell}$ operators, with pulls relative to the Standard Model in the region of $4{\sigma}$. An important conclusion of our analysis is that a lepton-specific contribution to ${\mathcal{O}}_{10}$ is important to understand the data. Under the hypothesis that new-physics couples selectively to the muons, we also present fits to other $b{\rightarrow}s{\mu}{\mu}$ data with a conservative error assessment and comment on more general scenarios. Finally, we discuss new lepton universality ratios that, if new physics is the origin of the observed discrepancy, should contribute to the statistically significant discovery of new physics in the near future.},

  doi          = {10.1103/PhysRevD.96.093006},

  journal      = {Physical Review D},

  number       = 9,

  volume       = 96,

  place        = {United States},

  year         = {Fri Nov 17 00:00:00 EST 2017},

  month        = {Fri Nov 17 00:00:00 EST 2017}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Publisher's Version of Record
https://doi.org/10.1103/PhysRevD.96.093006

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 153 works

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Global fits to b → sℓℓ data and signs for lepton non-universality
journal, December 2014

Hurth, T.; Mahmoudi, F.; Neshatpour, S.
Journal of High Energy Physics, Vol. 2014, Issue 12
DOI: 10.1007/JHEP12(2014)053

Measuring the breaking of lepton flavor universality in $B \to K^{*} ℓ^{+} ℓ^{-}$
journal, February 2017

Serra, Nicola; Coutinho, Rafael Silva; van Dyk, Danny
Physical Review D, Vol. 95, Issue 3
DOI: 10.1103/PhysRevD.95.035029

Hint of lepton flavour non-universality in B meson decays
journal, December 2014

Ghosh, Diptimoy; Nardecchia, Marco; Renner, S. A.
Journal of High Energy Physics, Vol. 2014, Issue 12
DOI: 10.1007/JHEP12(2014)131

B→Xse+e− in the six-quark model
journal, June 1989

Grinstein, Benjamin; Savage, Martin J.; Wise, Mark B.
Nuclear Physics B, Vol. 319, Issue 2
DOI: 10.1016/0550-3213(89)90078-3

Differential branching fractions and isospin asymmetries of B → K (*) μ + μ − decays
journal, June 2014

Aaij, R.; Adeva, B.; Adinolfi, M.
Journal of High Energy Physics, Vol. 2014, Issue 6
DOI: 10.1007/JHEP06(2014)133

Measurement of $B \to K^{*} (892) γ$ Branching Fractions and $C P$ and Isospin Asymmetries
journal, November 2009

Aubert, B.; Karyotakis, Y.; Lees, J. P.
Physical Review Letters, Vol. 103, Issue 21
DOI: 10.1103/PhysRevLett.103.211802

Assessing lepton-flavour non-universality from B →K ∗ ℓℓ angular analyses
journal, October 2016

Capdevila, Bernat; Descotes-Genon, Sébastien; Matias, Joaquim
Journal of High Energy Physics, Vol. 2016, Issue 10
DOI: 10.1007/JHEP10(2016)075

Review of Particle Physics
journal, October 2016

Olive, K. A.
Chinese Physics C, Vol. 40, Issue 10
DOI: 10.1088/1674-1137/40/10/100001

Comprehensive Bayesian analysis of rare (semi)leptonic and radiative $$\varvec{B}$$ B decays
journal, June 2014

Beaujean, Frederik; Bobeth, Christoph; van Dyk, Danny
The European Physical Journal C, Vol. 74, Issue 6
DOI: 10.1140/epjc/s10052-014-2897-0

New physics in $$b\rightarrow s$$ b → s transitions after LHC run 1
journal, August 2015

Altmannshofer, Wolfgang; Straub, David M.
The European Physical Journal C, Vol. 75, Issue 8
DOI: 10.1140/epjc/s10052-015-3602-7

Probing New Physics via the $B_{s}^{0} \to μ^{+} μ^{-}$ Effective Lifetime
journal, July 2012

De Bruyn, Kristof; Fleischer, Robert; Knegjens, Robert
Physical Review Letters, Vol. 109, Issue 4
DOI: 10.1103/PhysRevLett.109.041801

Measurement of branching fractions and rate asymmetries in the rare decays $B \to K^{(*)} ℓ^{+} ℓ^{-}$
journal, August 2012

Lees, J. P.; Poireau, V.; Tisserand, V.
Physical Review D, Vol. 86, Issue 3
DOI: 10.1103/PhysRevD.86.032012

Measurement of Form-Factor-Independent Observables in the Decay $B^{0} \to K^{* 0} μ^{+} μ^{-}$
journal, November 2013

Aaij, R.; Adeva, B.; Adinolfi, M.
Physical Review Letters, Vol. 111, Issue 19
DOI: 10.1103/PhysRevLett.111.191801

Symmetry-breaking corrections to heavy-to-light B meson form factors at large recoil
journal, January 2001

Beneke, M.; Feldmann, Th.
Nuclear Physics B, Vol. 592, Issue 1-2
DOI: 10.1016/S0550-3213(00)00585-X

Study of Exclusive Radiative $B$ Meson Decays
journal, June 2000

Coan, T. E.; Fadeyev, V.; Maravin, Y.
Physical Review Letters, Vol. 84, Issue 23
DOI: 10.1103/PhysRevLett.84.5283

Status of the $$B\rightarrow K^*\mu ^+\mu ^-$$ B → K ∗ μ + μ - anomaly after Moriond 2017
journal, June 2017

Altmannshofer, Wolfgang; Niehoff, Christoph; Stangl, Peter
The European Physical Journal C, Vol. 77, Issue 6
DOI: 10.1140/epjc/s10052-017-4952-0

B →Vℓ+ℓ− in the Standard Model from light-cone sum rules
journal, August 2016

Bharucha, Aoife; Straub, David M.; Zwicky, Roman
Journal of High Energy Physics, Vol. 2016, Issue 8
DOI: 10.1007/JHEP08(2016)098

Charm-loop effect in B → K () ℓ + ℓ − and B → K γ
journal, September 2010

Khodjamirian, A.; Mannel, Th.; Pivovarov, A. A.
Journal of High Energy Physics, Vol. 2010, Issue 9
DOI: 10.1007/JHEP09(2010)089

A new approach to a global fit of the CKM matrix
journal, June 2001

Höcker, A.; Lacker, H.; Laplace, S.
The European Physical Journal C, Vol. 21, Issue 2
DOI: 10.1007/s100520100729

Exclusive rare $B \to K^{*} ℓ^{+} ℓ^{-}$ decays at low recoil: Controlling the long-distance effects
journal, December 2004

Grinstein, Benjamín; Pirjol, Dan
Physical Review D, Vol. 70, Issue 11
DOI: 10.1103/PhysRevD.70.114005

On the impact of power corrections in the prediction of B → K *μ+μ− observables
journal, December 2014

Descotes-Genon, Sébastien; Hofer, Lars; Matias, Joaquim
Journal of High Energy Physics, Vol. 2014, Issue 12
DOI: 10.1007/JHEP12(2014)125

On B → Vℓℓ at small dilepton invariant mass, power corrections, and new physics
journal, May 2013

Jäger, S.; Camalich, J. Martin
Journal of High Energy Physics, Vol. 2013, Issue 5
DOI: 10.1007/JHEP05(2013)043

Test of Lepton Universality Using $B^{+} \to K^{+} ℓ^{+} ℓ^{-}$ Decays
journal, October 2014

Aaij, R.; Adeva, B.; Adinolfi, M.
Physical Review Letters, Vol. 113, Issue 15
DOI: 10.1103/PhysRevLett.113.151601

Erratum to: Comprehensive Bayesian analysis of rare (semi)leptonic and radiative B decays
journal, December 2014

Beaujean, Frederik; Bobeth, Christoph; van Dyk, Danny
The European Physical Journal C, Vol. 74, Issue 12
DOI: 10.1140/epjc/s10052-014-3179-6

$B_{s, d} \to ℓ^{+} ℓ^{-}$ in the Standard Model with Reduced Theoretical Uncertainty
journal, March 2014

Bobeth, Christoph; Gorbahn, Martin; Hermann, Thomas
Physical Review Letters, Vol. 112, Issue 10
DOI: 10.1103/PhysRevLett.112.101801

Global analysis of b → sℓℓ anomalies
journal, June 2016

Descotes-Genon, Sébastien; Hofer, Lars; Matias, Joaquim
Journal of High Energy Physics, Vol. 2016, Issue 6
DOI: 10.1007/JHEP06(2016)092

On the standard model predictions for $$R_K$$ R K and $$R_{K^*}$$ R K ∗
journal, August 2016

Bordone, Marzia; Isidori, Gino; Pattori, Andrea
The European Physical Journal C, Vol. 76, Issue 8
DOI: 10.1140/epjc/s10052-016-4274-7

Constraints on new physics from radiative B decays
journal, April 2017

Paul, Ayan; Straub, David M.
Journal of High Energy Physics, Vol. 2017, Issue 4
DOI: 10.1007/JHEP04(2017)027

On the anomalies in the latest LHCb data
journal, August 2016

Hurth, T.; Mahmoudi, F.; Neshatpour, S.
Nuclear Physics B, Vol. 909
DOI: 10.1016/j.nuclphysb.2016.05.022

Optimizing the basis of B → K * ℓ + ℓ − observables in the full kinematic range
journal, May 2013

Descotes-Genon, Sébastien; Hurth, Tobias; Matias, Joaquim
Journal of High Energy Physics, Vol. 2013, Issue 5
DOI: 10.1007/JHEP05(2013)137

Angular distributions of B̄ → K l̄ l decays
journal, December 2007

Bobeth, Christoph; Hiller, Gudrun; Piranishvili, Giorgi
Journal of High Energy Physics, Vol. 2007, Issue 12
DOI: 10.1088/1126-6708/2007/12/040

Reassessing the discovery potential of the $B \to K^{*} ℓ^{+} ℓ^{-}$ decays in the large-recoil region: SM challenges and BSM opportunities
journal, January 2016

Jäger, S.; Martin Camalich, J.
Physical Review D, Vol. 93, Issue 1
DOI: 10.1103/PhysRevD.93.014028

Weak decays beyond leading logarithms
journal, October 1996

Buchalla, Gerhard; Buras, Andrzej J.; Lautenbacher, Markus E.
Reviews of Modern Physics, Vol. 68, Issue 4
DOI: 10.1103/RevModPhys.68.1125

B s → μ + μ − as current and future probe of new physics
journal, May 2017

Altmannshofer, Wolfgang; Niehoff, Christoph; Straub, David M.
Journal of High Energy Physics, Vol. 2017, Issue 5
DOI: 10.1007/JHEP05(2017)076

Weak radiative B-meson decay beyond leading logarithms [Phys. Lett. B 400 (1997) 206]
journal, April 1998

Chetyrkin, K.; Misiak, M.; Münz, M.
Physics Letters B, Vol. 425, Issue 3-4
DOI: 10.1016/S0370-2693(98)00225-1

Measurement of the $B \to X_{s} ℓ^{+} ℓ^{-}$ Branching Fraction and Search for Direct $C P$ Violation from a Sum of Exclusive Final States
journal, May 2014

Lees, J. P.; Poireau, V.; Tisserand, V.
Physical Review Letters, Vol. 112, Issue 21
DOI: 10.1103/PhysRevLett.112.211802

Measurement of the Differential Branching Fraction and Forward-Backward Asymmetry for $B \to K^{(*)} l^{+} l^{-}$
journal, October 2009

Wei, J. -T.; Chang, P.; Adachi, I.
Physical Review Letters, Vol. 103, Issue 17
DOI: 10.1103/PhysRevLett.103.171801

Differential branching fraction and angular analysis of Λb0 → Λμ+μ− decays
journal, June 2015

Aaij, R.; Adeva, B.; Adinolfi, M.
Journal of High Energy Physics, Vol. 2015, Issue 6
DOI: 10.1007/JHEP06(2015)115

Large hadronic power corrections or new physics in the rare decay B → K ∗ μ + μ −?
journal, July 2017

Chobanova, V. G.; Hurth, T.; Mahmoudi, F.
Journal of High Energy Physics, Vol. 2017, Issue 7
DOI: 10.1007/JHEP07(2017)025

Angular analysis of the B 0 → K *0 μ + μ − decay using 3 fb−1 of integrated luminosity
journal, February 2016

Aaij, R.; Abellán Beteta, C.; Adeva, B.
Journal of High Energy Physics, Vol. 2016, Issue 2
DOI: 10.1007/JHEP02(2016)104

Hadronic uncertainties in B → K ∗ μ + μ −: a state-of-the-art analysis
journal, April 2017

Capdevila, Bernat; Descotes-Genon, Sébastien; Hofer, Lars
Journal of High Energy Physics, Vol. 2017, Issue 4
DOI: 10.1007/JHEP04(2017)016

Lepton-Flavor-Dependent Angular Analysis of $B \to K^{*} ℓ^{+} ℓ^{-}$
journal, March 2017

Wehle, S.; Niebuhr, C.; Yashchenko, S.
Physical Review Letters, Vol. 118, Issue 11
DOI: 10.1103/PhysRevLett.118.111801

B → K∗ ℓ + ℓ − decays at large recoil in the Standard Model: a theoretical reappraisal
journal, June 2016

Ciuchini, Marco; Fedele, Marco; Franco, Enrico
Journal of High Energy Physics, Vol. 2016, Issue 6
DOI: 10.1007/JHEP06(2016)116

Review of lattice results concerning low-energy particle physics: Flavour Lattice Averaging Group (FLAG)
journal, February 2017

Aoki, S.; Aoki, Y.; Bečirević, D.
The European Physical Journal C, Vol. 77, Issue 2
DOI: 10.1140/epjc/s10052-016-4509-7

Systematic approach to exclusive B→Vℓ+ℓ−, Vγ decays
journal, September 2001

Beneke, M.; Feldmann, Th.; Seidel, D.
Nuclear Physics B, Vol. 612, Issue 1-2
DOI: 10.1016/S0550-3213(01)00366-2

More model-independent analysis of $\vec{b} s$ processes
journal, April 2004

Hiller, Gudrun; Krüger, Frank
Physical Review D, Vol. 69, Issue 7
DOI: 10.1103/PhysRevD.69.074020

Angular analysis of the B0 → K*0e+e− decay in the low-q2 region
journal, April 2015

Aaij, R.; Adeva, B.; Adinolfi, M.
Journal of High Energy Physics, Vol. 2015, Issue 4
DOI: 10.1007/JHEP04(2015)064

Calculation of $B^{0} \to K^{* 0} μ^{+} μ^{-}$ and $B_{s}^{0} \to ϕ μ^{+} μ^{-}$ Observables Using Form Factors from Lattice QCD
journal, May 2014

Horgan, Ronald R.; Liu, Zhaofeng; Meinel, Stefan
Physical Review Letters, Vol. 112, Issue 21
DOI: 10.1103/PhysRevLett.112.212003

Measurement of the $\vec{B} K^{*} γ$ branching fractions and asymmetries
journal, June 2004

Nakao, M.; Abe, K.; Abe, K.
Physical Review D, Vol. 69, Issue 11
DOI: 10.1103/PhysRevD.69.112001

$SU (2) \times U (1)$ Gauge Invariance and the Shape of New Physics in Rare $B$ Decays
journal, December 2014

Alonso, R.; Grinstein, B.; Martin Camalich, J.
Physical Review Letters, Vol. 113, Issue 24
DOI: 10.1103/PhysRevLett.113.241802

New observables in the decay mode B̄ _d → K̄ ^*0 ℓ ⁺ ℓ ⁻
journal, November 2008

Egede, Ulrik; Hurth, Tobias; Matias, Joaquim
Journal of High Energy Physics, Vol. 2008, Issue 11
DOI: 10.1088/1126-6708/2008/11/032

Measurement of the phase difference between short- and long-distance amplitudes in the $${{B} ^+} \!\rightarrow {{{K}} ^+} {\mu ^+\mu ^-} $$ B + → K + μ + μ - decay
journal, March 2017

Aaij, R.; Adeva, B.; Adinolfi, M.
The European Physical Journal C, Vol. 77, Issue 3
DOI: 10.1140/epjc/s10052-017-4703-2

$R_{K}$ and future $b \to s ℓ ℓ$ physics beyond the standard model opportunities
journal, September 2014

Hiller, Gudrun; Schmaltz, Martin
Physical Review D, Vol. 90, Issue 5
DOI: 10.1103/PhysRevD.90.054014

Angular analysis and differential branching fraction of the decay B s 0 → ϕμ + μ −
journal, September 2015

Aaij, R.; Adeva, B.; Adinolfi, M.
Journal of High Energy Physics, Vol. 2015, Issue 9
DOI: 10.1007/JHEP09(2015)179

B → Kℓ + ℓ − decay at large hadronic recoil
journal, February 2013

Khodjamirian, A.; Mannel, Th.; Wang, Y. -M.
Journal of High Energy Physics, Vol. 2013, Issue 2
DOI: 10.1007/JHEP02(2013)010

Zooming in on $$B\rightarrow K^*\ell \ell $$ B → K ∗ ℓ ℓ decays at low recoil
journal, January 2017

Braß, Simon; Hiller, Gudrun; Nišandžić, Ivan
The European Physical Journal C, Vol. 77, Issue 1
DOI: 10.1140/epjc/s10052-016-4576-9

Theory of B→K (∗) l + l − decays at high q 2: OPE and quark–hadron duality
journal, May 2011

Beylich, M.; Buchalla, G.; Feldmann, T.
The European Physical Journal C, Vol. 71, Issue 5
DOI: 10.1140/epjc/s10052-011-1635-0

Weak radiative B-meson decay beyond leading logarithms
journal, May 1997

Chetyrkin, Konstantin; Misiak, Mikołaj; Münz, Manfred
Physics Letters B, Vol. 400, Issue 1-2
DOI: 10.1016/S0370-2693(97)00324-9

Measurement of the B 0 → K ∗0 e + e − branching fraction at low dilepton mass
journal, May 2013

Aaij, R.; Beteta, C. Abellan; Adeva, B.
Journal of High Energy Physics, Vol. 2013, Issue 5
DOI: 10.1007/JHEP05(2013)159

Works referencing / citing this record:

Pseudoscalar or vector meson production in non-leptonic decays of heavy hadrons
journal, June 2018

Liang, Wei-Hong; Oset, E.
The European Physical Journal C, Vol. 78, Issue 6
DOI: 10.1140/epjc/s10052-018-5997-4

FCC Physics Opportunities: Future Circular Collider Conceptual Design Report Volume 1
journal, June 2019

Abada, A.; Abbrescia, M.; AbdusSalam, S. S.
The European Physical Journal C, Vol. 79, Issue 6
DOI: 10.1140/epjc/s10052-019-6904-3

New Physics in $${\varvec{b \rightarrow s \ell ^+ \ell ^-}}$$ b → s ℓ + ℓ - confronts new data on lepton universality
journal, August 2019

Ciuchini, Marco; Coutinho, António M.; Fedele, Marco
The European Physical Journal C, Vol. 79, Issue 8
DOI: 10.1140/epjc/s10052-019-7210-9

B anomalies and dark matter: a complex connection
journal, June 2019

Cerdeño, D. G.; Cheek, A.; Martín-Ramiro, P.
The European Physical Journal C, Vol. 79, Issue 6
DOI: 10.1140/epjc/s10052-019-6979-x

Some results on lepton flavour universality violation
journal, July 2019

Alda, J.; Guasch, J.; Peñaranda, S.
The European Physical Journal C, Vol. 79, Issue 7
DOI: 10.1140/epjc/s10052-019-7092-x

Flavor non-universal gauge interactions and anomalies in B-meson decays
journal, February 2018

Tang, Yong; Wu, Yue-Liang
Chinese Physics C, Vol. 42, Issue 3
DOI: 10.1088/1674-1137/42/3/033104

Pseudoscalar or vector meson production in non-leptonic decays of heavy hadrons
journal, June 2018

Liang, Wei-Hong; Oset, E.
The European Physical Journal C, Vol. 78, Issue 6
DOI: 10.1140/epjc/s10052-018-5997-4

B anomalies and dark matter: a complex connection
journal, June 2019

Cerdeño, D. G.; Cheek, A.; Martín-Ramiro, P.
The European Physical Journal C, Vol. 79, Issue 6
DOI: 10.1140/epjc/s10052-019-6979-x

Some results on lepton flavour universality violation
journal, July 2019

Alda, J.; Guasch, J.; Peñaranda, S.
The European Physical Journal C, Vol. 79, Issue 7
DOI: 10.1140/epjc/s10052-019-7092-x

New Physics in $${\varvec{b \rightarrow s \ell ^+ \ell ^-}}$$ b → s ℓ + ℓ - confronts new data on lepton universality
journal, August 2019

Ciuchini, Marco; Coutinho, António M.; Fedele, Marco
The European Physical Journal C, Vol. 79, Issue 8
DOI: 10.1140/epjc/s10052-019-7210-9

FCC Physics Opportunities
text, January 2019

Abada, A.; Abbrescia, M.; AbdusSalam, S. S.
Deutsches Elektronen-Synchrotron, DESY, Hamburg
DOI: 10.3204/pubdb-2019-02731

Flavor physics and flavor anomalies in minimal fundamental partial compositeness
journal, June 2018

Sannino, Francesco; Stangl, Peter; Straub, David M.
Physical Review D, Vol. 97, Issue 11
DOI: 10.1103/physrevd.97.115046

Hadron collider sensitivity to fat flavourful Z′s for R K ∗ $$ {R}_{K^{\left(\ast \right)}} $$
journal, March 2019

Allanach, B. C.; Corbett, Tyler; Dolan, Matthew J.
Journal of High Energy Physics, Vol. 2019, Issue 3
DOI: 10.1007/jhep03(2019)137

The ${{\boldsymbol{\Lambda }}}_{{\boldsymbol{b}}}\, \rightarrow \,{\boldsymbol{\Lambda }}\,( \rightarrow {\boldsymbol{p}}{{\boldsymbol{\pi }}}^{-}){{\boldsymbol{\mu }}}^{+}{{\boldsymbol{\mu }}}^{-}$ decay in the ${{\rm{RS}}}_{{\boldsymbol{c}}}$ model
journal, August 2018

Nasrullah, Aqsa; Bhutta, Faisal Munir; Aslam, M. Jamil
Journal of Physics G: Nuclear and Particle Physics, Vol. 45, Issue 9
DOI: 10.1088/1361-6471/aad53a

Explaining the ${R}_{K}$ and ${R}_{{K}^{* }}$ anomalies with right-handed sneutrinos
journal, November 2018

Khalil, Shaaban
Journal of Physics G: Nuclear and Particle Physics, Vol. 45, Issue 12
DOI: 10.1088/1361-6471/aaeba3

Review of lepton universality tests in B decays
journal, December 2018

Bifani, Simone; Descotes-Genon, Sébastien; Vidal, Antonio Romero
Journal of Physics G: Nuclear and Particle Physics, Vol. 46, Issue 2
DOI: 10.1088/1361-6471/aaf5de

Charming new physics in rare $B$ decays and mixing?
journal, January 2018

Jäger, Sebastian; Leslie, Kirsten; Kirk, Matthew
Physical Review D, Vol. 97, Issue 1
DOI: 10.1103/physrevd.97.015021

New light mediators for the $R_{K}$ and $R_{K^{*}}$ puzzles
journal, June 2018

Datta, Alakabha; Kumar, Jacky; Liao, Jiajun
Physical Review D, Vol. 97, Issue 11
DOI: 10.1103/physrevd.97.115038

QCD improved matching for semileptonic $B$ decays with leptoquarks
journal, March 2019

Aebischer, Jason; Crivellin, Andreas; Greub, Christoph
Physical Review D, Vol. 99, Issue 5
DOI: 10.1103/physrevd.99.055002

B-meson anomalies and Higgs physics in flavored $$U(1)'$$ U ( 1 ) ′ model
journal, April 2018

Bian, Ligong; Lee, Hyun Min; Park, Chan Beom
The European Physical Journal C, Vol. 78, Issue 4
DOI: 10.1140/epjc/s10052-018-5777-1

Flavour issues in warped custodial models: B anomalies and rare K decays
journal, June 2018

D’Ambrosio, Giancarlo; Iyer, Abhishek M.
The European Physical Journal C, Vol. 78, Issue 6
DOI: 10.1140/epjc/s10052-018-5915-9

Long-distance effects in $$B\rightarrow K^*\ell \ell $$ B → K ∗ ℓ ℓ from analyticity
journal, June 2018

Bobeth, Christoph; Chrzaszcz, Marcin; van Dyk, Danny
The European Physical Journal C, Vol. 78, Issue 6
DOI: 10.1140/epjc/s10052-018-5918-6

: a Python package for the running and matching of Wilson coefficients above and below the electroweak scale
journal, December 2018

Aebischer, Jason; Kumar, Jacky; Straub, David M.
The European Physical Journal C, Vol. 78, Issue 12
DOI: 10.1140/epjc/s10052-018-6492-7

New physics effects in purely leptonic $$B^*_s$$ decays
journal, May 2019

Kumbhakar, Suman; Saini, Jyoti
The European Physical Journal C, Vol. 79, Issue 5
DOI: 10.1140/epjc/s10052-019-6901-6

FCC Physics Opportunities: Future Circular Collider Conceptual Design Report Volume 1
journal, June 2019

Abada, A.; Abbrescia, M.; AbdusSalam, S. S.
The European Physical Journal C, Vol. 79, Issue 6
DOI: 10.1140/epjc/s10052-019-6904-3

Similar Records in DOE PAGES and OSTI.GOV collections:

Precise predictions for $Λ_{b} \to Λ_{c}$ semileptonic decays

Journal Article Bernlochner, Florian U. ; Ligeti, Zoltan ; Robinson, Dean J. ; ... - Physical Review. D.

We calculate themore »« less
Cited by 44
https://doi.org/10.1103/PhysRevD.99.055008
R_K and future $b \to s ℓ ℓ$ physics beyond the standard model opportunities

Journal Article Hiller, Gudrun ; Schmaltz, Martin - Physical Review. D, Particles, Fields, Gravitation and Cosmology

Flavor changing neutral current |ΔB|=|ΔS|=1 processes are sensitive to possible new physics at the electroweak scale and beyond, providing detailed information about flavor, chirality and Lorentz structure. Recently the LHCb collaboration announced a 2.6σ deviation in the measurement ofmore »« less
Cited by 283
https://doi.org/10.1103/physrevd.90.054014

Full Text Available
Implications of new evidence for lepton-universality violation in $b \to s ℓ^{+} ℓ^{-}$ decays

Journal Article Geng, Li-Sheng ; Grinstein, Benjamín ; Jäger, Sebastian ; ... - Physical Review D

Motivated by renewed evidence for new physics in b → s ℓ ℓ transitions in the form of LHCb’s new measurements of theoretically clean lepton-universality ratios and the purely leptonic B_s → μ⁺ μ^– decay, we quantify the combined level of discrepancy with the Standard Model and fit values of short-distance Wilson coefficients. A combination of the clean observables R_K , R_K*, and B_s → μμ alone results in a discrepancy with the Standard Model at 4.0σ , up from 3.5σ in 2017. One-parameter scenarios with purely left-handed or with purely axial coupling to muons fit the data well andmore »« less
https://doi.org/10.1103/PhysRevD.104.035029
Measurement of the Branching Fraction For the Semileptonic Decay $D^{0 (+)} \to π^{- (0)} μ^{+} ν_{μ}$ and Test of Lepton Flavor Universality

Journal Article Ablikim, M. ; Achasov, M. N. ; Ahmed, S. ; ... - Physical Review Letters

Using a data sample corresponding to an integrated luminosity ofmore »« less
Cited by 34
https://doi.org/10.1103/PhysRevLett.121.171803
Measurement of $R (D)$ and $R (D^{*})$ with a Semileptonic Tagging Method

Journal Article Caria, G. ; Urquijo, P. ; Adachi, I. ; ... - Physical Review Letters

The experimental results on the ratios of branching fractionsmore »« less
Cited by 74
https://doi.org/10.1103/PhysRevLett.124.161803

Similar Records

Title: Towards the discovery of new physics with lepton-universality ratios of b → s ℓ ℓ decays

Abstract

Citation Formats

Global fits to b → sℓℓ data and signs for lepton non-universality journal, December 2014

Measuring the breaking of lepton flavor universality in B → K * ℓ + ℓ − journal, February 2017

Hint of lepton flavour non-universality in B meson decays journal, December 2014

B→Xse+e− in the six-quark model journal, June 1989

Differential branching fractions and isospin asymmetries of B → K (*) μ + μ − decays journal, June 2014

Measurement of B → K * ( 892 ) γ Branching Fractions and C P and Isospin Asymmetries journal, November 2009

Assessing lepton-flavour non-universality from B →K ∗ ℓℓ angular analyses journal, October 2016

Review of Particle Physics journal, October 2016

Comprehensive Bayesian analysis of rare (semi)leptonic and radiative $$\varvec{B}$$ B decays journal, June 2014

New physics in $$b\rightarrow s$$ b → s transitions after LHC run 1 journal, August 2015

Probing New Physics via the B s 0 → μ + μ − Effective Lifetime journal, July 2012

Measurement of branching fractions and rate asymmetries in the rare decays B → K ( * ) ℓ + ℓ − journal, August 2012

Measurement of Form-Factor-Independent Observables in the Decay B 0 → K * 0 μ + μ − journal, November 2013

Symmetry-breaking corrections to heavy-to-light B meson form factors at large recoil journal, January 2001

Study of Exclusive Radiative B Meson Decays journal, June 2000

Status of the $$B\rightarrow K^*\mu ^+\mu ^-$$ B → K ∗ μ + μ - anomaly after Moriond 2017 journal, June 2017

B →Vℓ+ℓ− in the Standard Model from light-cone sum rules journal, August 2016

Charm-loop effect in B → K (*) ℓ + ℓ − and B → K * γ journal, September 2010

A new approach to a global fit of the CKM matrix journal, June 2001

Exclusive rare B → K * ℓ + ℓ − decays at low recoil: Controlling the long-distance effects journal, December 2004

On the impact of power corrections in the prediction of B → K *μ+μ− observables journal, December 2014

On B → Vℓℓ at small dilepton invariant mass, power corrections, and new physics journal, May 2013

Test of Lepton Universality Using B + → K + ℓ + ℓ − Decays journal, October 2014

Erratum to: Comprehensive Bayesian analysis of rare (semi)leptonic and radiative B decays journal, December 2014

B s , d → ℓ + ℓ − in the Standard Model with Reduced Theoretical Uncertainty journal, March 2014

Global analysis of b → sℓℓ anomalies journal, June 2016

On the standard model predictions for $$R_K$$ R K and $$R_{K^*}$$ R K ∗ journal, August 2016

Constraints on new physics from radiative B decays journal, April 2017

On the anomalies in the latest LHCb data journal, August 2016

Optimizing the basis of B → K * ℓ + ℓ − observables in the full kinematic range journal, May 2013

Angular distributions of B̄ → K l̄ l decays journal, December 2007

Reassessing the discovery potential of the B → K * ℓ + ℓ − decays in the large-recoil region: SM challenges and BSM opportunities journal, January 2016

Weak decays beyond leading logarithms journal, October 1996

B s → μ + μ − as current and future probe of new physics journal, May 2017

Weak radiative B-meson decay beyond leading logarithms [Phys. Lett. B 400 (1997) 206] journal, April 1998

Measurement of the B → X s ℓ + ℓ − Branching Fraction and Search for Direct C P Violation from a Sum of Exclusive Final States journal, May 2014

Measurement of the Differential Branching Fraction and Forward-Backward Asymmetry for B → K ( * ) l + l − journal, October 2009

Differential branching fraction and angular analysis of Λb0 → Λμ+μ− decays journal, June 2015

Large hadronic power corrections or new physics in the rare decay B → K ∗ μ + μ −? journal, July 2017

Angular analysis of the B 0 → K *0 μ + μ − decay using 3 fb−1 of integrated luminosity journal, February 2016

Hadronic uncertainties in B → K ∗ μ + μ −: a state-of-the-art analysis journal, April 2017

Lepton-Flavor-Dependent Angular Analysis of B → K * ℓ + ℓ − journal, March 2017

B → K∗ ℓ + ℓ − decays at large recoil in the Standard Model: a theoretical reappraisal journal, June 2016

Review of lattice results concerning low-energy particle physics: Flavour Lattice Averaging Group (FLAG) journal, February 2017

Systematic approach to exclusive B→Vℓ+ℓ−, Vγ decays journal, September 2001

More model-independent analysis of b → s processes journal, April 2004

Angular analysis of the B0 → K*0e+e− decay in the low-q2 region journal, April 2015

Calculation of B 0 → K * 0 μ + μ − and B s 0 → ϕ μ + μ − Observables Using Form Factors from Lattice QCD journal, May 2014

Measurement of the B → K * γ branching fractions and asymmetries journal, June 2004

SU ( 2 ) × U ( 1 ) Gauge Invariance and the Shape of New Physics in Rare B Decays journal, December 2014

New observables in the decay mode B̄ d → K̄ *0 ℓ + ℓ − journal, November 2008

Measurement of the phase difference between short- and long-distance amplitudes in the $${{B} ^+} \!\rightarrow {{{K}} ^+} {\mu ^+\mu ^-} $$ B + → K + μ + μ - decay journal, March 2017

R K and future b → s ℓ ℓ physics beyond the standard model opportunities journal, September 2014

Angular analysis and differential branching fraction of the decay B s 0 → ϕμ + μ − journal, September 2015

B → Kℓ + ℓ − decay at large hadronic recoil journal, February 2013

Zooming in on $$B\rightarrow K^*\ell \ell $$ B → K ∗ ℓ ℓ decays at low recoil journal, January 2017

Theory of B→K (∗) l + l − decays at high q 2: OPE and quark–hadron duality journal, May 2011

Weak radiative B-meson decay beyond leading logarithms journal, May 1997

Measurement of the B 0 → K ∗0 e + e − branching fraction at low dilepton mass journal, May 2013

Pseudoscalar or vector meson production in non-leptonic decays of heavy hadrons journal, June 2018

FCC Physics Opportunities: Future Circular Collider Conceptual Design Report Volume 1 journal, June 2019

New Physics in $${\varvec{b \rightarrow s \ell ^+ \ell ^-}}$$ b → s ℓ + ℓ - confronts new data on lepton universality journal, August 2019

B anomalies and dark matter: a complex connection journal, June 2019

Some results on lepton flavour universality violation journal, July 2019

Flavor non-universal gauge interactions and anomalies in B-meson decays journal, February 2018

Pseudoscalar or vector meson production in non-leptonic decays of heavy hadrons journal, June 2018

B anomalies and dark matter: a complex connection journal, June 2019

Some results on lepton flavour universality violation journal, July 2019

New Physics in $${\varvec{b \rightarrow s \ell ^+ \ell ^-}}$$ b → s ℓ + ℓ - confronts new data on lepton universality journal, August 2019

FCC Physics Opportunities text, January 2019

Flavor physics and flavor anomalies in minimal fundamental partial compositeness journal, June 2018

Hadron collider sensitivity to fat flavourful Z′s for R K ∗ $$ {R}_{K^{\left(\ast \right)}} $$ journal, March 2019

The ${{\boldsymbol{\Lambda }}}_{{\boldsymbol{b}}}\, \rightarrow \,{\boldsymbol{\Lambda }}\,( \rightarrow {\boldsymbol{p}}{{\boldsymbol{\pi }}}^{-}){{\boldsymbol{\mu }}}^{+}{{\boldsymbol{\mu }}}^{-}$ decay in the ${{\rm{RS}}}_{{\boldsymbol{c}}}$ model journal, August 2018

Explaining the ${R}_{K}$ and ${R}_{{K}^{* }}$ anomalies with right-handed sneutrinos journal, November 2018

Review of lepton universality tests in B decays journal, December 2018

Charming new physics in rare B decays and mixing? journal, January 2018

New light mediators for the R K and R K * puzzles journal, June 2018

Title: Towards the discovery of new physics with lepton-universality ratios of $b \to s ℓ ℓ$ decays

Global fits to b → sℓℓ data and signs for lepton non-universality
journal, December 2014

Measuring the breaking of lepton flavor universality in $B \to K^{*} ℓ^{+} ℓ^{-}$
journal, February 2017

Hint of lepton flavour non-universality in B meson decays
journal, December 2014

B→Xse+e− in the six-quark model
journal, June 1989

Differential branching fractions and isospin asymmetries of B → K (*) μ + μ − decays
journal, June 2014

Measurement of $B \to K^{*} (892) γ$ Branching Fractions and $C P$ and Isospin Asymmetries
journal, November 2009

Assessing lepton-flavour non-universality from B →K ∗ ℓℓ angular analyses
journal, October 2016

Review of Particle Physics
journal, October 2016

Comprehensive Bayesian analysis of rare (semi)leptonic and radiative $$\varvec{B}$$ B decays
journal, June 2014

New physics in $$b\rightarrow s$$ b → s transitions after LHC run 1
journal, August 2015

Probing New Physics via the $B_{s}^{0} \to μ^{+} μ^{-}$ Effective Lifetime
journal, July 2012

Measurement of branching fractions and rate asymmetries in the rare decays $B \to K^{(*)} ℓ^{+} ℓ^{-}$
journal, August 2012

Measurement of Form-Factor-Independent Observables in the Decay $B^{0} \to K^{* 0} μ^{+} μ^{-}$
journal, November 2013

Symmetry-breaking corrections to heavy-to-light B meson form factors at large recoil
journal, January 2001

Study of Exclusive Radiative $B$ Meson Decays
journal, June 2000

Status of the $$B\rightarrow K^*\mu ^+\mu ^-$$ B → K ∗ μ + μ - anomaly after Moriond 2017
journal, June 2017

B →Vℓ+ℓ− in the Standard Model from light-cone sum rules
journal, August 2016

Charm-loop effect in B → K () ℓ + ℓ − and B → K γ
journal, September 2010

A new approach to a global fit of the CKM matrix
journal, June 2001

Exclusive rare $B \to K^{*} ℓ^{+} ℓ^{-}$ decays at low recoil: Controlling the long-distance effects
journal, December 2004

On the impact of power corrections in the prediction of B → K *μ+μ− observables
journal, December 2014

On B → Vℓℓ at small dilepton invariant mass, power corrections, and new physics
journal, May 2013

Test of Lepton Universality Using $B^{+} \to K^{+} ℓ^{+} ℓ^{-}$ Decays
journal, October 2014

Erratum to: Comprehensive Bayesian analysis of rare (semi)leptonic and radiative B decays
journal, December 2014

$B_{s, d} \to ℓ^{+} ℓ^{-}$ in the Standard Model with Reduced Theoretical Uncertainty
journal, March 2014

Global analysis of b → sℓℓ anomalies
journal, June 2016

On the standard model predictions for $$R_K$$ R K and $$R_{K^*}$$ R K ∗
journal, August 2016

Constraints on new physics from radiative B decays
journal, April 2017

On the anomalies in the latest LHCb data
journal, August 2016

Optimizing the basis of B → K * ℓ + ℓ − observables in the full kinematic range
journal, May 2013

Angular distributions of B̄ → K l̄ l decays
journal, December 2007

Reassessing the discovery potential of the $B \to K^{*} ℓ^{+} ℓ^{-}$ decays in the large-recoil region: SM challenges and BSM opportunities
journal, January 2016

Weak decays beyond leading logarithms
journal, October 1996

B s → μ + μ − as current and future probe of new physics
journal, May 2017

Weak radiative B-meson decay beyond leading logarithms [Phys. Lett. B 400 (1997) 206]
journal, April 1998

Measurement of the $B \to X_{s} ℓ^{+} ℓ^{-}$ Branching Fraction and Search for Direct $C P$ Violation from a Sum of Exclusive Final States
journal, May 2014

Measurement of the Differential Branching Fraction and Forward-Backward Asymmetry for $B \to K^{(*)} l^{+} l^{-}$
journal, October 2009

Differential branching fraction and angular analysis of Λb0 → Λμ+μ− decays
journal, June 2015

Large hadronic power corrections or new physics in the rare decay B → K ∗ μ + μ −?
journal, July 2017

Angular analysis of the B 0 → K *0 μ + μ − decay using 3 fb−1 of integrated luminosity
journal, February 2016

Hadronic uncertainties in B → K ∗ μ + μ −: a state-of-the-art analysis
journal, April 2017

Lepton-Flavor-Dependent Angular Analysis of $B \to K^{*} ℓ^{+} ℓ^{-}$
journal, March 2017

B → K∗ ℓ + ℓ − decays at large recoil in the Standard Model: a theoretical reappraisal
journal, June 2016

Review of lattice results concerning low-energy particle physics: Flavour Lattice Averaging Group (FLAG)
journal, February 2017

Systematic approach to exclusive B→Vℓ+ℓ−, Vγ decays
journal, September 2001

More model-independent analysis of $\vec{b} s$ processes
journal, April 2004

Angular analysis of the B0 → K*0e+e− decay in the low-q2 region
journal, April 2015

Calculation of $B^{0} \to K^{* 0} μ^{+} μ^{-}$ and $B_{s}^{0} \to ϕ μ^{+} μ^{-}$ Observables Using Form Factors from Lattice QCD
journal, May 2014

Measurement of the $\vec{B} K^{*} γ$ branching fractions and asymmetries
journal, June 2004

$SU (2) \times U (1)$ Gauge Invariance and the Shape of New Physics in Rare $B$ Decays
journal, December 2014

New observables in the decay mode B̄ _d → K̄ ^*0 ℓ ⁺ ℓ ⁻
journal, November 2008

Measurement of the phase difference between short- and long-distance amplitudes in the $${{B} ^+} \!\rightarrow {{{K}} ^+} {\mu ^+\mu ^-} $$ B + → K + μ + μ - decay
journal, March 2017

$R_{K}$ and future $b \to s ℓ ℓ$ physics beyond the standard model opportunities
journal, September 2014

Angular analysis and differential branching fraction of the decay B s 0 → ϕμ + μ −
journal, September 2015

B → Kℓ + ℓ − decay at large hadronic recoil
journal, February 2013

Zooming in on $$B\rightarrow K^*\ell \ell $$ B → K ∗ ℓ ℓ decays at low recoil
journal, January 2017

Theory of B→K (∗) l + l − decays at high q 2: OPE and quark–hadron duality
journal, May 2011

Weak radiative B-meson decay beyond leading logarithms
journal, May 1997

Measurement of the B 0 → K ∗0 e + e − branching fraction at low dilepton mass
journal, May 2013

Pseudoscalar or vector meson production in non-leptonic decays of heavy hadrons
journal, June 2018

FCC Physics Opportunities: Future Circular Collider Conceptual Design Report Volume 1
journal, June 2019

New Physics in $${\varvec{b \rightarrow s \ell ^+ \ell ^-}}$$ b → s ℓ + ℓ - confronts new data on lepton universality
journal, August 2019

B anomalies and dark matter: a complex connection
journal, June 2019

Some results on lepton flavour universality violation
journal, July 2019

Flavor non-universal gauge interactions and anomalies in B-meson decays
journal, February 2018

Pseudoscalar or vector meson production in non-leptonic decays of heavy hadrons
journal, June 2018

B anomalies and dark matter: a complex connection
journal, June 2019

Some results on lepton flavour universality violation
journal, July 2019

New Physics in $${\varvec{b \rightarrow s \ell ^+ \ell ^-}}$$ b → s ℓ + ℓ - confronts new data on lepton universality
journal, August 2019

FCC Physics Opportunities
text, January 2019

Flavor physics and flavor anomalies in minimal fundamental partial compositeness
journal, June 2018

Hadron collider sensitivity to fat flavourful Z′s for R K ∗ $$ {R}_{K^{\left(\ast \right)}} $$
journal, March 2019

The ${{\boldsymbol{\Lambda }}}_{{\boldsymbol{b}}}\, \rightarrow \,{\boldsymbol{\Lambda }}\,( \rightarrow {\boldsymbol{p}}{{\boldsymbol{\pi }}}^{-}){{\boldsymbol{\mu }}}^{+}{{\boldsymbol{\mu }}}^{-}$ decay in the ${{\rm{RS}}}_{{\boldsymbol{c}}}$ model
journal, August 2018

Explaining the ${R}_{K}$ and ${R}_{{K}^{* }}$ anomalies with right-handed sneutrinos
journal, November 2018

Review of lepton universality tests in B decays
journal, December 2018

Charming new physics in rare $B$ decays and mixing?
journal, January 2018

New light mediators for the $R_{K}$ and $R_{K^{*}}$ puzzles
journal, June 2018

QCD improved matching for semileptonic $B$ decays with leptoquarks
journal, March 2019

B-meson anomalies and Higgs physics in flavored $$U(1)'$$ U ( 1 ) ′ model
journal, April 2018