R(D(*)) from W' and right-handed neutrinos

Greljo, Admir; Robinson, Dean J.; Shakya, Bibhushan; Zupan, Jure

doi:10.1007/jhep09(2018)169

Title: R(D^(*)) from W' and right-handed neutrinos

Abstract

Here we provide an ultraviolet (UV) complete model for the R(D^(*)) anomalies, in which the additional contribution to semi-tauonic b → c transitions arises from decay to a right-handed sterile neutrino via exchange of a TeV-scale SU(2)_L singlet W'. The model is based on an extension of the Standard Model (SM) hypercharge group, U(1)_Y, to the SU(2)_V × U(1)' gauge group, containing several pairs of heavy vector-like fermions. We present a comprehensive phenomenological survey of the model, ranging from the low-energy flavor physics, direct searches at the LHC, to neutrino physics and cosmology. We show that, while the W' and Z'-induced constraints are important, it is possible to find parameter space naturally consistent with all the available data. The sterile neutrino sector also offers rich phenomenology, including possibilities for measurable dark radiation, gamma ray signals, and displaced decays at colliders.

Authors:

Greljo, Admir ^[1]; Robinson, Dean J. ^[2]; Shakya, Bibhushan ^[3]; Zupan, Jure ^[4]

Johannes Gutenberg-Univ. Mainz, Mainz (Germany); Univ. of Sarajevo, Sarajevo (Bosnia and Herzegovina)
Univ. of Cincinnati, Cincinnati, OH (United States)
Univ. of Cincinnati, Cincinnati, OH (United States); Univ. of Michigan, Ann Arbor, MI (United States)
Univ. of Cincinnati, OH (United States). Dept. of Physics

Publication Date:: Fri Sep 28 00:00:00 EDT 2018

Research Org.:: Univ. of Cincinnati, Cincinnati, OH (United States)

Sponsoring Org.:: USDOE Office of Science (SC), High Energy Physics (HEP)

OSTI Identifier:: 1499182

Alternate Identifier(s):: OSTI ID: 1593743

Grant/Contract Number:: SC0011784

Resource Type:: Accepted Manuscript

Journal Name:: Journal of High Energy Physics (Online)

Additional Journal Information:: Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2018; Journal Issue: 9; Journal ID: ISSN 1029-8479

Publisher:: Springer Berlin

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Beyond Standard Model; Heavy Quark Physics; Neutrino Physics

Citation Formats


                    Greljo, Admir, Robinson, Dean J., Shakya, Bibhushan, and Zupan, Jure. R(D(*)) from W' and right-handed neutrinos.  United States: N. p., 2018. 
Web.  doi:10.1007/jhep09(2018)169.

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                    Greljo, Admir, Robinson, Dean J., Shakya, Bibhushan, & Zupan, Jure. R(D(*)) from W' and right-handed neutrinos.  United States.  https://doi.org/10.1007/jhep09(2018)169

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                    Greljo, Admir, Robinson, Dean J., Shakya, Bibhushan, and Zupan, Jure. Fri .  
"R(D(*)) from W' and right-handed neutrinos".  United States.  https://doi.org/10.1007/jhep09(2018)169.  https://www.osti.gov/servlets/purl/1499182.

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@article{osti_1499182,

  title        = {R(D(*)) from W' and right-handed neutrinos},

  author       = {Greljo, Admir and Robinson, Dean J. and Shakya, Bibhushan and Zupan, Jure},

  abstractNote = {Here we provide an ultraviolet (UV) complete model for the R(D(*)) anomalies, in which the additional contribution to semi-tauonic b → c transitions arises from decay to a right-handed sterile neutrino via exchange of a TeV-scale SU(2)L singlet W'. The model is based on an extension of the Standard Model (SM) hypercharge group, U(1)Y, to the SU(2)V × U(1)' gauge group, containing several pairs of heavy vector-like fermions. We present a comprehensive phenomenological survey of the model, ranging from the low-energy flavor physics, direct searches at the LHC, to neutrino physics and cosmology. We show that, while the W' and Z'-induced constraints are important, it is possible to find parameter space naturally consistent with all the available data. The sterile neutrino sector also offers rich phenomenology, including possibilities for measurable dark radiation, gamma ray signals, and displaced decays at colliders.},

  doi          = {10.1007/jhep09(2018)169},

  journal      = {Journal of High Energy Physics (Online)},

  number       = 9,

  volume       = 2018,

  place        = {United States},

  year         = {Fri Sep 28 00:00:00 EDT 2018},

  month        = {Fri Sep 28 00:00:00 EDT 2018}

}

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DOI: 10.48550/arxiv.1912.06344

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A theory of R(D*, D) anomaly with right-handed currents

Journal Article Babu, K. S. ; Dutta, Bhaskar ; Mohapatra, Rabindra N. - Journal of High Energy Physics (Online)

We present an ultraviolet complete theory for the R(D^*) and R(D) anomaly in terms of a low mass W ^±_R gauge boson of a class of left-right symmetric models. These models, which are based on the gauge symmetry SU(3)_c × SU(2)_L × SU(2)_R × U(1)_{B - L}, utilize vector-like fermions to generate quark and lepton masses via a universal seesaw mechanism. A parity symmetric version as well as an asymmetric version are studied. A light sterile neutrino emerges naturally in this setup, which allows for new decay modes of B-meson via right-handed currents. We show that these models canmore »« less
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We explore scenarios where theR(D^(*)) anomalies arise from semitauonic decays to a right-handed sterile neutrino. We perform an EFT study of all five simplified models capable of generating at tree-level the lowest dimension electroweak operators that give rise to this decay. We analyze their compatibility with current R(D^(*)) data and other relevant hadronic branching ratios, and show that one simplified model is excluded by this analysis. The remainder are compatible with collider constraints on the mediator semileptonic branching ratios, provided the mediator mass is of order TeV. We also discuss the phenomenology of the sterile neutrino itself, which includes possibilitiesmore »« less
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Motivated by the ongoing searches for new physics at the LHC, we explore the low energy consequences of a D-brane inspired SU(4)_C × SU(2)_L × SU(2)_R (4-2-2) model. The Higgs sector consists of an SU(4) adjoint, a pair H + H¯ in (4,1,2) + (4¯,1,2), and a bidoublet field in h(1,2,2). With the SU(4) adjoint, the symmetry breaks to a left-right symmetric SU(3)_C × U(1)_B–L × SU(2)_L× SU(2)_R model. A missing partner mechanism protects the SU(2)_R Higgs doublets in H, H¯, which subsequently break this latter symmetry at around to 10⁴ – 10⁶ GeV to the Standard Model. Anmore »« less
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The KATRIN experiment aims to determine the absolute neutrino mass by measuring the endpoint region of the tritium β-spectrum. As a large-scale experiment with a sharp energy resolution, high source luminosity and low background it may also be capable of testing certain theories of neutrino interactions beyond the standard model (SM). An example of a non-SM interaction are right-handed currents mediated by right-handed W bosons in the left-right symmetric model (LRSM). In this extension of the SM, an additional SU(2){sub R} symmetry in the high-energy limit is introduced, which naturally includes sterile neutrinos and predicts the seesaw mechanism. In tritiummore »« less
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The kinetic mixing (KM) of a dark photon (DP) with the familiar one of the Standard Model (SM) requires the existence of a new set of fields, called portal matter (PM), which carry both SM and dark sector quantum numbers, some whose masses may lie at the TeV scale. In the vanilla KM model, the dark gauge group is just the simplemore »« less
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Similar Records

Title: R(D(*)) from W' and right-handed neutrinos

Abstract

Citation Formats

Sterile neutrinos as dark matter journal, January 1994

New Dark Matter Candidate: Nonthermal Sterile Neutrinos journal, April 1999

Lepton universality violation and right-handed currents in b → cτν journal, April 2018

Disentangling Mass and Mixing Hierarchies journal, October 2015

General formulae for $f_1 \to f_2 \gamma$ journal, July 2003

Dirac Neutrino Masses as Two-Loop Radiative Corrections journal, January 1989

Light Higgs and vector-like quarks without prejudice journal, July 2013

Physics of leptoquarks in precision experiments and at particle colliders text, January 2016

On the breaking of lepton flavor universality in B decays text, January 2015

On the breaking of lepton flavor universality in B decays journal, July 2015

On the importance of electroweak corrections for B anomalies journal, September 2017

A closer look at the R D and R D* anomalies journal, January 2017

Radiative fermion masses from new physics at TeV scale journal, January 1989

Third family quark–lepton unification at the TeV scale journal, July 2018

Naturally light Dirac neutrino in Left-Right Symmetric Model journal, June 2017

The flavor-locked flavorful two Higgs doublet model journal, March 2018

Implications of Lepton Flavor Universality Violations in B Decays journal, October 2012

Mass matrix models: the sequel journal, June 1994

Mass matrix models journal, June 1993

New gauge bosons in an asymmetric left-right model journal, November 1992

A three-site gauge model for flavor hierarchies and flavor anomalies journal, April 2018

Sterile neutrino dark matter from freeze-in journal, February 2016

A three-site gauge model for flavor hierarchies and flavor anomalies text, January 2018

Physics of leptoquarks in precision experiments and at particle colliders journal, June 2016

Extraction of |Vcb| from B → D(∗)ℓνℓ and the Standard Model predictions of R(D(∗)) journal, December 2017

New detectors to explore the lifetime frontier journal, April 2017

Leptoquark flavor patterns & B decay anomalies journal, December 2016

R(D∗), |Vcb|, and the Heavy Quark Symmetry relations between form factors journal, November 2017

D * polarization as a probe to discriminate new physics in B ¯ → D * τ ν ¯ journal, June 2017

Looking for possible new physics in B → D ( * ) τ ν τ in light of recent data journal, April 2017

Explaining B → D τ ν , B → D * τ ν and B → τ ν in a two Higgs doublet model of type III journal, September 2012

Sensitivity to charged scalars in B → D (*) τν τ and B → τν τ decays journal, January 2013

Flavor-phenomenology of two-Higgs-doublet models with generic Yukawa structure journal, May 2013

Phenomenology of an SU(2) × SU(2) × U(1) model with lepton-flavour non-universality journal, December 2016

Minimal Leptoquark Explanation for the R D ( * ) , R K , and ( g − 2 ) μ Anomalies journal, April 2016

Vector leptoquark resolution of R and R D ( ⁎ ) puzzles journal, April 2016

Anomalies in B-decays and U(2) flavor symmetry journal, February 2016

Leptoquark model to explain the B -physics anomalies, R K and R D journal, December 2016

Simultaneous explanation of R(D (∗)) and b→sμ + μ −: the last scalar leptoquarks standing journal, September 2017

R D ( * ) anomaly: A possible hint for natural supersymmetry with R -parity violation journal, November 2017

Anomalous enhancement observed in B → D ( * ) τ ν ¯ τ decays journal, April 2013

Tension in the inclusive versus exclusive determinations of | V c b | : A possible role of new physics journal, January 2017

Revisiting the one leptoquark solution to the R(D (∗)) anomalies and its phenomenological implications journal, August 2016

Lifetime of B c − Mesons Constrains Explanations for Anomalies in B → D ( * ) τ ν journal, February 2017

Scalar contributions to b→c(u)τν transitions journal, August 2017

Confronting lepton flavor universality violation in B decays with high- p T tau lepton searches at LHC journal, January 2017

Revisiting Lepton Flavor Universality in B Decays journal, January 2017

Gauge leptoquark as the origin of B -physics anomalies journal, December 2017

B-decay anomalies in Pati–Salam SU(4) journal, March 2018

B Meson Anomalies in a Pati-Salam Model within the Randall-Sundrum Background journal, July 2018

Anomalies in (semi)-leptonic B decays B ± →τ ± ν, B ± →Dτ ± ν and B ± →D*τ ± ν , and possible resolution with sterile neutrino journal, October 2017

B decays with τ leptons in nonuniversal left-right models journal, January 2013

B -meson decay constants: A more complete picture from full lattice QCD journal, June 2015

Review of Particle Physics journal, October 2016

Model-independent constraints on Δ F = 2 operators and the scale of new physics journal, March 2008

keV sterile neutrino dark matter in gauge extensions of the standard model journal, April 2010

Sterile neutrino dark matter with supersymmetry journal, August 2017

Neutrino masses and sterile neutrino dark matter from the PeV scale journal, December 2015

The νMSM, dark matter and neutrino masses journal, December 2005

The νMSM, dark matter and baryon asymmetry of the universe journal, July 2005

Opening a new window for warm dark matter journal, July 2006

Decaying particles do not ‘‘heat up’’ the Universe journal, February 1985

ForwArd Search ExpeRiment at the LHC journal, February 2018

Searching for long-lived particles: A compact detector for exotics at LHCb journal, January 2018

It’s all right(-handed neutrinos): a new W ′ model for the R D ∗ $$ {R}_{D^{{}_{\left(\ast \right)}}} $$ anomaly journal, September 2018

B-physics anomalies : a guide to combined explanations text, January 2017

Implications of lepton flavor universality violations in B decays text, January 2012

Light Higgs and Vector-like Quarks without Prejudice text, January 2013

Physics of leptoquarks in precision experiments and at particle colliders text, January 2016

New Detectors to Explore the Lifetime Frontier text, January 2016

The Flavor-locked Flavorful Two Higgs Doublet Model text, January 2017

Third Family Quark-Lepton Unification at the TeV Scale text, January 2018

Addressing the B-physics anomalies in a fundamental Composite Higgs Model text, January 2018

A New Dark Matter Candidate: Non-thermal Sterile Neutrinos text, January 1998

Sterile Neutrinos as Dark Matter text, January 1993

Mass Matrix Models: The Sequel text, January 1993

The Flavor-locked Flavorful Two Higgs Doublet Model text, January 2017

Title: R(D^(*)) from W' and right-handed neutrinos

Sterile neutrinos as dark matter
journal, January 1994

New Dark Matter Candidate: Nonthermal Sterile Neutrinos
journal, April 1999

Lepton universality violation and right-handed currents in b → cτν
journal, April 2018

Disentangling Mass and Mixing Hierarchies
journal, October 2015

General formulae for $f_1 \to f_2 \gamma$
journal, July 2003

Dirac Neutrino Masses as Two-Loop Radiative Corrections
journal, January 1989

Light Higgs and vector-like quarks without prejudice
journal, July 2013

Physics of leptoquarks in precision experiments and at particle colliders
text, January 2016

On the breaking of lepton flavor universality in B decays
text, January 2015

On the breaking of lepton flavor universality in B decays
journal, July 2015

On the importance of electroweak corrections for B anomalies
journal, September 2017

A closer look at the R D and R D* anomalies
journal, January 2017

Radiative fermion masses from new physics at TeV scale
journal, January 1989

Third family quark–lepton unification at the TeV scale
journal, July 2018

Naturally light Dirac neutrino in Left-Right Symmetric Model
journal, June 2017

The flavor-locked flavorful two Higgs doublet model
journal, March 2018

Implications of Lepton Flavor Universality Violations in $B$ Decays
journal, October 2012

Mass matrix models: the sequel
journal, June 1994

Mass matrix models
journal, June 1993

New gauge bosons in an asymmetric left-right model
journal, November 1992

A three-site gauge model for flavor hierarchies and flavor anomalies
journal, April 2018

Sterile neutrino dark matter from freeze-in
journal, February 2016

A three-site gauge model for flavor hierarchies and flavor anomalies
text, January 2018

Physics of leptoquarks in precision experiments and at particle colliders
journal, June 2016

Extraction of |Vcb| from B → D(∗)ℓνℓ and the Standard Model predictions of R(D(∗))
journal, December 2017

New detectors to explore the lifetime frontier
journal, April 2017

Leptoquark flavor patterns & B decay anomalies
journal, December 2016

R(D∗), |Vcb|, and the Heavy Quark Symmetry relations between form factors
journal, November 2017

$D^{}$ polarization as a probe to discriminate new physics in $\bar{B} \to D^{} τ \bar{ν}$
journal, June 2017

Looking for possible new physics in $B \to D^{(*)} τ ν_{τ}$ in light of recent data
journal, April 2017

Explaining $B \to D τ ν$ , $B \to D^{*} τ ν$ and $B \to τ ν$ in a two Higgs doublet model of type III
journal, September 2012

Sensitivity to charged scalars in B → D (*) τν τ and B → τν τ decays
journal, January 2013

Flavor-phenomenology of two-Higgs-doublet models with generic Yukawa structure
journal, May 2013

Phenomenology of an SU(2) × SU(2) × U(1) model with lepton-flavour non-universality
journal, December 2016

Minimal Leptoquark Explanation for the $R_{D^{(*)}}$ , $R_{K}$ , and $(g - 2)_{μ}$ Anomalies
journal, April 2016

Vector leptoquark resolution of R and $R_{D^{(⁎)}}$ puzzles
journal, April 2016

Anomalies in B-decays and U(2) flavor symmetry
journal, February 2016

Leptoquark model to explain the $B$ -physics anomalies, $R_{K}$ and $R_{D}$
journal, December 2016

Simultaneous explanation of R(D (∗)) and b→sμ + μ −: the last scalar leptoquarks standing
journal, September 2017

$R_{D^{(*)}}$ anomaly: A possible hint for natural supersymmetry with $R$ -parity violation
journal, November 2017

Anomalous enhancement observed in $B \to D^{(*)} τ {\bar{ν}}_{τ}$ decays
journal, April 2013

Tension in the inclusive versus exclusive determinations of $| V_{c b} |$ : A possible role of new physics
journal, January 2017

Revisiting the one leptoquark solution to the R(D (∗)) anomalies and its phenomenological implications
journal, August 2016

Lifetime of $B_{c}^{-}$ Mesons Constrains Explanations for Anomalies in $B \to D^{(*)} τ ν$
journal, February 2017

Scalar contributions to b→c(u)τν transitions
journal, August 2017

Confronting lepton flavor universality violation in B decays with high- p T tau lepton searches at LHC
journal, January 2017

Revisiting Lepton Flavor Universality in $B$ Decays
journal, January 2017

Gauge leptoquark as the origin of $B$ -physics anomalies
journal, December 2017

B-decay anomalies in Pati–Salam SU(4)
journal, March 2018

$B$ Meson Anomalies in a Pati-Salam Model within the Randall-Sundrum Background
journal, July 2018

Anomalies in (semi)-leptonic B decays B ^± →τ ^± ν, B ^± →Dτ ^± ν and B ^± →D*τ ^± ν , and possible resolution with sterile neutrino
journal, October 2017

$B$ decays with $τ$ leptons in nonuniversal left-right models
journal, January 2013

$B$ -meson decay constants: A more complete picture from full lattice QCD
journal, June 2015

Review of Particle Physics
journal, October 2016

Model-independent constraints on Δ F = 2 operators and the scale of new physics
journal, March 2008

keV sterile neutrino dark matter in gauge extensions of the standard model
journal, April 2010

Sterile neutrino dark matter with supersymmetry
journal, August 2017

Neutrino masses and sterile neutrino dark matter from the PeV scale
journal, December 2015

The νMSM, dark matter and neutrino masses
journal, December 2005

The νMSM, dark matter and baryon asymmetry of the universe
journal, July 2005

Opening a new window for warm dark matter
journal, July 2006

Decaying particles do not ‘‘heat up’’ the Universe
journal, February 1985

ForwArd Search ExpeRiment at the LHC
journal, February 2018

Searching for long-lived particles: A compact detector for exotics at LHCb
journal, January 2018

It’s all right(-handed neutrinos): a new W ′ model for the R D ∗ $$ {R}_{D^{{}_{\left(\ast \right)}}} $$ anomaly
journal, September 2018

B-physics anomalies : a guide to combined explanations
text, January 2017

Implications of lepton flavor universality violations in B decays
text, January 2012

Light Higgs and Vector-like Quarks without Prejudice
text, January 2013

Physics of leptoquarks in precision experiments and at particle colliders
text, January 2016

New Detectors to Explore the Lifetime Frontier
text, January 2016

The Flavor-locked Flavorful Two Higgs Doublet Model
text, January 2017

Third Family Quark-Lepton Unification at the TeV Scale
text, January 2018

Addressing the B-physics anomalies in a fundamental Composite Higgs Model
text, January 2018

A New Dark Matter Candidate: Non-thermal Sterile Neutrinos
text, January 1998

Sterile Neutrinos as Dark Matter
text, January 1993

Mass Matrix Models: The Sequel
text, January 1993

The Flavor-locked Flavorful Two Higgs Doublet Model
text, January 2017

Charged current $b \to c τ {\bar{ν}}_{τ}$ anomalies in a general $W^{'}$ boson scenario
journal, November 2019

Impact of polarization observables and Bc→τν on new physics explanations of the b→cτν anomaly
text, January 2019