Universally enhanced light-quarks Yukawa couplings paradigm

Bar-Shalom, Shaouly; Soni, Amarjit

doi:10.1103/PhysRevD.98.055001

Title: Universally enhanced light-quarks Yukawa couplings paradigm

Abstract

Here, we propose that natural TeV-scale new physics (NP) with O(1) couplings to the standard model (SM) quarks may lead to a universal enhancement of the Yukawa couplings of all the light quarks, perhaps to a size comparable to that of the SM b-quark Yukawa coupling, i.e., y_q ~ O(y^SM_b) for q=u, d, c, s. This scenario is described within an effective field theory (EFT) extension of the SM, for which a potential contribution of certain dimension six effective operators to the light quark Yukawa couplings is y_q ~ O(fv²/Λ²), where v is the Higgs vacuum expectation value, v = 246 GeV, Λ is the typical scale of the underlying heavy NP, and f is the corresponding Wilson coefficient which depends on its properties and details. In particular, we study the case of y_q ~ 0.025 ~ y^SM_b, which is the typical size of the enhanced light-quark Yukawa couplings if the NP scale is around Λ ~ 1.5 TeV and the NP couplings are natural, i.e., f ~ O(1). We also explore this enhanced light quark Yukawa paradigm in extensions of the SM which contain TeV-scale vectorlike quarks, and we match them to the specific higher dimensional effective operators inmore »« less

Authors:: Bar-Shalom, Shaouly; Soni, Amarjit

Publication Date:: Tue Sep 04 00:00:00 EDT 2018

Research Org.:: Brookhaven National Lab. (BNL), Upton, NY (United States)

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

OSTI Identifier:: 1468500

Alternate Identifier(s):: OSTI ID: 1477952

Report Number(s):: BNL-209181-2018-JAAM
Journal ID: ISSN 2470-0010; PRVDAQ; 055001

Grant/Contract Number:: SC0012704

Resource Type:: Published Article

Journal Name:: Physical Review D

Additional Journal Information:: Journal Name: Physical Review D Journal Volume: 98 Journal Issue: 5; Journal ID: ISSN 2470-0010

Publisher:: American Physical Society

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Yukawa; fermion; decay; hadronic; quark; GEV; Higgs

Citation Formats


                    Bar-Shalom, Shaouly, and Soni, Amarjit. Universally enhanced light-quarks Yukawa couplings paradigm.  United States: N. p., 2018. 
Web.  doi:10.1103/PhysRevD.98.055001.

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                    Bar-Shalom, Shaouly, & Soni, Amarjit. Universally enhanced light-quarks Yukawa couplings paradigm.  United States.  https://doi.org/10.1103/PhysRevD.98.055001

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                    Bar-Shalom, Shaouly, and Soni, Amarjit. Tue .  
"Universally enhanced light-quarks Yukawa couplings paradigm".  United States.  https://doi.org/10.1103/PhysRevD.98.055001.

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@article{osti_1468500,

  title        = {Universally enhanced light-quarks Yukawa couplings paradigm},

  author       = {Bar-Shalom, Shaouly and Soni, Amarjit},

  abstractNote = {Here, we propose that natural TeV-scale new physics (NP) with O(1) couplings to the standard model (SM) quarks may lead to a universal enhancement of the Yukawa couplings of all the light quarks, perhaps to a size comparable to that of the SM b-quark Yukawa coupling, i.e., yq ~ O(ySMb) for q=u, d, c, s. This scenario is described within an effective field theory (EFT) extension of the SM, for which a potential contribution of certain dimension six effective operators to the light quark Yukawa couplings is yq ~ O(fv2/Λ2), where v is the Higgs vacuum expectation value, v = 246 GeV, Λ is the typical scale of the underlying heavy NP, and f is the corresponding Wilson coefficient which depends on its properties and details. In particular, we study the case of yq ~ 0.025 ~ ySMb, which is the typical size of the enhanced light-quark Yukawa couplings if the NP scale is around Λ ~ 1.5 TeV and the NP couplings are natural, i.e., f ~ O(1). We also explore this enhanced light quark Yukawa paradigm in extensions of the SM which contain TeV-scale vectorlike quarks, and we match them to the specific higher dimensional effective operators in the EFT description. We discuss the constraints on this scenario and the flavor structure of the underlying NP dynamics and suggest some resulting “smoking gun” signals that should be searched for at the LHC, such as multi-Higgs production pp → hh,hhh and single Higgs production in association with a high pT jet (j) or photon pp → hj,hγ and with a single top-quark pp → ht.},

  doi          = {10.1103/PhysRevD.98.055001},

  journal      = {Physical Review D},

  number       = 5,

  volume       = 98,

  place        = {United States},

  year         = {Tue Sep 04 00:00:00 EDT 2018},

  month        = {Tue Sep 04 00:00:00 EDT 2018}

}

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The first search for nonresonant production of Higgs boson pairs (HH) with one H decaying into four leptons and the other into a pair of b quarks is presented, using proton-proton collisions recorded at a center-of-mass energy of s = 13 TeV by the CMS experiment. The analyzed data correspond to an integrated luminosity of 138 fb^-1. A 95% confidence level upper limit of 32.4 is set on the signal strength modifier μ defined as the ratio of the observed HH production rate in the HH → more » ZZ * b b ¯ → 4 ℓ b b ¯ decay channel to the standard model (SM) expectation. Possible modifications of the H trilinear coupling λ_HHH with respect to the SM value are investigated. The coupling modifier κ_λ, defined as λ_HHH divided by its SM prediction, is constrained to be within the observed (expected) range -8.8 (-9.8) < κ_λ < 13.4 (15.0) at 95% confidence level.« less
https://doi.org/10.1007/jhep06(2023)130

Full Text Available
Radiative decays of the Higgs boson to a pair of fermions

Journal Article Han, Tao ; Wang, Xing - Journal of High Energy Physics (Online)

We revisit the radiative decays of the Higgs boson to a fermion pair h→ff¯γ where f denotes a fermion in the Standard Model (SM). We include the chirality-flipping diagrams via the Yukawa couplings at the order O(y²_fα), the chirality-conserving contributions via the top-quark loops of the order O(y²_tα³), and the electroweak loops at the order O(α⁴). The QED correction is about Q²_f × O(1%) and contributes to the running of fermion masses at a similar level, which should be taken into account for future precision Higgs physics. The chirality-conserving electroweak-loop processes are interesting from the observational point of view. First,more »« less
Cited by 6
https://doi.org/10.1007/jhep10(2017)036

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Title: Universally enhanced light-quarks Yukawa couplings paradigm

Abstract

Citation Formats

Effective field theory analysis of Higgs naturalness journal, July 2015

The discrete charm of flavour and CP violation journal, July 2017

Modified Higgs physics from composite light flavors journal, September 2013

Constraining models with vector-like fermions from FCNC in K and B physics journal, October 2001

Effects of mixing with quark singlets journal, February 2003

Erratum: Rare decays of the top quark in the standard and two-Higgs-doublet models [Phys. Rev. D 44 , 1473 (1991)] journal, December 1998

Evidence for the H → b b ¯ $$ H\to b\overline{b} $$ decay with the ATLAS detector journal, December 2017

The anatomy of electroweak symmetry breaking journal, February 2008

On the addition of vector-like quarks to the standard model journal, December 1986

On the two-loop virtual QCD corrections to Higgs boson pair production in the standard model journal, July 2016

Survey of vector-like fermion extensions of the Standard Model and their phenomenological implications journal, September 2014

Erratum: Effects of mixing with quark singlets [Phys. Rev. D 67 , 035003 (2003)] journal, May 2004

Constraints on Top Couplings in Models with Exotic Quarks journal, February 1999

Patterns of flavour violation in models with vector-like quarks journal, April 2017

Enhanced di-Higgs production through light colored scalars journal, November 2012

Vector-like fermion contributions to ε′ journal, January 1986

Search for the flavor-changing neutral current interactions of the top quark and the Higgs boson which decays into a pair of b quarks at s = 13 $$ \sqrt{s}=13 $$ TeV journal, June 2018

Higgs production in heavy-quark annihilation through next-to-next-to-leading order QCD journal, May 2016

Higgs boson pair production: Top quark mass effects at NLO and NNLO journal, November 2015

Asking for an extra photon in Higgs production at the LHC and beyond journal, July 2016

Rare decays of the top quark in the standard and two-Higgs-doublet models journal, September 1991

The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations journal, July 2014

Higgs–photon resonances journal, October 2017

Top- and bottom-mass effects in hadronic Higgs production at small transverse momenta through lo+nll journal, June 2013

New vector-like fermions and flavor physics journal, October 2015

Higgs boson production in association with a photon in vector boson fusion at the LHC journal, October 2007

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

Generation of a KM phase from spontaneous CP breaking at a high energy scale journal, August 1990

Exclusive Window onto Higgs Yukawa Couplings journal, March 2015

New-physics signals of a model with a vector-singlet up-type quark journal, July 2015

Constraining composite Higgs models using LHC data journal, March 2018

Top partners and Higgs boson production journal, August 2014

Neutral Higgs-boson pair production at hadron colliders: QCD corrections journal, November 1998

Vectorlike chiral fourth family to explain muon anomalies journal, May 2018

Vector-like quarks at the origin of light quark masses and mixing journal, June 2017

Full top quark mass dependence in Higgs boson pair production at NLO journal, October 2016

Little solution to the little hierarchy problem: A vectorlike generation journal, March 2010

Light quark Yukawa couplings from Higgs kinematics journal, December 2016

Higgs boson couplings: Measurements and theoretical interpretation journal, February 2017

FeynRules 2.0 — A complete toolbox for tree-level phenomenology journal, August 2014

Resolving the Higgs-gluon coupling with jets journal, July 2014

Light-quarks Yukawa couplings and new physics in exclusive high- p T Higgs boson + jet and Higgs boson + b -jet events journal, March 2018

Constraining Light-Quark Yukawa Couplings from Higgs Distributions journal, March 2017

Higgs boson mass, sparticle spectrum, and the little hierarchy problem in an extended MSSM journal, September 2008

New physics scale from Higgs observables with effective dimension-6 operators journal, August 2018

Softening Higgs Naturalness – an EFT Analysis journal, April 2016

What’s in the loop? The anatomy of double Higgs production journal, June 2015

Very boosted Higgs in gluon fusion journal, May 2014

Bounds on the mixing of the down-type quarks with vectorlike singlet quarks journal, February 1993

The size of and physics beyond the Standard Model journal, January 2005

Higgs Boson Pair Production at Next-to-Next-to-Leading Order in QCD journal, November 2013

Little Higgs Theories journal, December 2005

Erratum to: Gluon-fusion Higgs production in the Standard Model Effective Field Theory journal, February 2018

Higgs-photon associated production at hadron colliders journal, July 1998

Higgs Boson Pair Production in Gluon Fusion at Next-to-Leading Order with Full Top-Quark Mass Dependence journal, June 2016

Erratum: Higgs Boson Pair Production in Gluon Fusion at Next-to-Leading Order with Full Top-Quark Mass Dependence [Phys. Rev. Lett. 117 , 012001 (2016)] journal, August 2016

Phenomenology of enhanced light quark Yukawa couplings and the W±h charge asymmetry journal, February 2017

Vector-like quarks coupling discrimination at the LHC and future hadron colliders journal, December 2017

Numerical multi-loop calculations: tools and applications journal, October 2016

Prospects for measuring the Higgs boson coupling to light quarks journal, January 2016

Light non-degenerate composite partners at the LHC journal, February 2014

Constraining the charm Yukawa and Higgs-quark coupling universality journal, August 2015

Handbook of vectorlike quarks: Mixing and single production journal, November 2013

Flavor-changing interactions with singlet quarks and their implications for the LHC journal, January 2010

A minimal model with natural suppresion of strong CP violation journal, September 1991

A Higgs conundrum with vector fermions journal, July 2012

Small violations of unitarity, the phase in B s 0 − B ¯ s 0 and visible t → c Z decays at the LHC journal, May 2009

High precision determination of the gluon fusion Higgs boson cross-section at the LHC journal, May 2016

Observable contributions of new exotic quarks to quark mixing journal, September 2000

Measurements of the Higgs boson production and decay rates and constraints on its couplings from a combined ATLAS and CMS analysis of the LHC pp collision data at s = 7 $$ \sqrt{s}=7 $$ and 8 TeV journal, August 2016

The hunt for New Physics in the Flavour Sector with up vector-like quarks journal, December 2012

Gluon-fusion Higgs production in the Standard Model Effective Field Theory journal, December 2017

Search for top quark decays t → qH, with H → γγ, in s = 13 $$ \sqrt{s}=13 $$ TeV pp collisions using the ATLAS detector journal, October 2017

Vectorlike fermions and Higgs effective field theory revisited journal, July 2017

Probing Higgs boson couplings in H + γ production at the LHC journal, October 2017

Higgs boson pair production in new physics models at hadron, lepton, and photon colliders journal, December 2010

Higgs pair production at next-to-next-to-leading logarithmic accuracy at the LHC journal, September 2015

Effective field theory analysis of Higgs naturalness
journal, July 2015

The discrete charm of flavour and CP violation
journal, July 2017

Modified Higgs physics from composite light flavors
journal, September 2013

Constraining models with vector-like fermions from FCNC in K and B physics
journal, October 2001

Effects of mixing with quark singlets
journal, February 2003

Erratum: Rare decays of the top quark in the standard and two-Higgs-doublet models [Phys. Rev. D 44 , 1473 (1991)]
journal, December 1998

Evidence for the H → b b ¯ $$ H\to b\overline{b} $$ decay with the ATLAS detector
journal, December 2017

The anatomy of electroweak symmetry breaking
journal, February 2008

On the addition of vector-like quarks to the standard model
journal, December 1986

On the two-loop virtual QCD corrections to Higgs boson pair production in the standard model
journal, July 2016

Survey of vector-like fermion extensions of the Standard Model and their phenomenological implications
journal, September 2014

Erratum: Effects of mixing with quark singlets [Phys. Rev. D 67 , 035003 (2003)]
journal, May 2004

Constraints on Top Couplings in Models with Exotic Quarks
journal, February 1999

Patterns of flavour violation in models with vector-like quarks
journal, April 2017

Enhanced di-Higgs production through light colored scalars
journal, November 2012

Vector-like fermion contributions to ε′
journal, January 1986

Search for the flavor-changing neutral current interactions of the top quark and the Higgs boson which decays into a pair of b quarks at s = 13 $$ \sqrt{s}=13 $$ TeV
journal, June 2018

Higgs production in heavy-quark annihilation through next-to-next-to-leading order QCD
journal, May 2016

Higgs boson pair production: Top quark mass effects at NLO and NNLO
journal, November 2015

Asking for an extra photon in Higgs production at the LHC and beyond
journal, July 2016

Rare decays of the top quark in the standard and two-Higgs-doublet models
journal, September 1991

The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
journal, July 2014

Higgs–photon resonances
journal, October 2017

Top- and bottom-mass effects in hadronic Higgs production at small transverse momenta through lo+nll
journal, June 2013

New vector-like fermions and flavor physics
journal, October 2015

Higgs boson production in association with a photon in vector boson fusion at the LHC
journal, October 2007

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

Generation of a KM phase from spontaneous CP breaking at a high energy scale
journal, August 1990

Exclusive Window onto Higgs Yukawa Couplings
journal, March 2015

New-physics signals of a model with a vector-singlet up-type quark
journal, July 2015

Constraining composite Higgs models using LHC data
journal, March 2018

Top partners and Higgs boson production
journal, August 2014

Neutral Higgs-boson pair production at hadron colliders: QCD corrections
journal, November 1998

Vectorlike chiral fourth family to explain muon anomalies
journal, May 2018

Vector-like quarks at the origin of light quark masses and mixing
journal, June 2017

Full top quark mass dependence in Higgs boson pair production at NLO
journal, October 2016

Little solution to the little hierarchy problem: A vectorlike generation
journal, March 2010

Light quark Yukawa couplings from Higgs kinematics
journal, December 2016

Higgs boson couplings: Measurements and theoretical interpretation
journal, February 2017

FeynRules 2.0 — A complete toolbox for tree-level phenomenology
journal, August 2014

Resolving the Higgs-gluon coupling with jets
journal, July 2014

Light-quarks Yukawa couplings and new physics in exclusive high- $p_{T}$ Higgs $boson + jet$ and Higgs boson + $b$ -jet events
journal, March 2018

Constraining Light-Quark Yukawa Couplings from Higgs Distributions
journal, March 2017

Higgs boson mass, sparticle spectrum, and the little hierarchy problem in an extended MSSM
journal, September 2008

New physics scale from Higgs observables with effective dimension-6 operators
journal, August 2018

Softening Higgs Naturalness – an EFT Analysis
journal, April 2016

What’s in the loop? The anatomy of double Higgs production
journal, June 2015

Very boosted Higgs in gluon fusion
journal, May 2014

Bounds on the mixing of the down-type quarks with vectorlike singlet quarks
journal, February 1993

The size of and physics beyond the Standard Model
journal, January 2005

Higgs Boson Pair Production at Next-to-Next-to-Leading Order in QCD
journal, November 2013

Little Higgs Theories
journal, December 2005

Erratum to: Gluon-fusion Higgs production in the Standard Model Effective Field Theory
journal, February 2018

Higgs-photon associated production at hadron colliders
journal, July 1998

Higgs Boson Pair Production in Gluon Fusion at Next-to-Leading Order with Full Top-Quark Mass Dependence
journal, June 2016

Erratum: Higgs Boson Pair Production in Gluon Fusion at Next-to-Leading Order with Full Top-Quark Mass Dependence [Phys. Rev. Lett. 117 , 012001 (2016)]
journal, August 2016

Phenomenology of enhanced light quark Yukawa couplings and the W±h charge asymmetry
journal, February 2017

Vector-like quarks coupling discrimination at the LHC and future hadron colliders
journal, December 2017

Numerical multi-loop calculations: tools and applications
journal, October 2016

Prospects for measuring the Higgs boson coupling to light quarks
journal, January 2016

Light non-degenerate composite partners at the LHC
journal, February 2014

Constraining the charm Yukawa and Higgs-quark coupling universality
journal, August 2015

Handbook of vectorlike quarks: Mixing and single production
journal, November 2013

Flavor-changing interactions with singlet quarks and their implications for the LHC
journal, January 2010

A minimal model with natural suppresion of strong CP violation
journal, September 1991

A Higgs conundrum with vector fermions
journal, July 2012

Small violations of unitarity, the phase in $B_{s}^{0} - {\bar{B}}_{s}^{0}$ and visible $t \to c Z$ decays at the LHC
journal, May 2009

High precision determination of the gluon fusion Higgs boson cross-section at the LHC
journal, May 2016

Observable contributions of new exotic quarks to quark mixing
journal, September 2000

Measurements of the Higgs boson production and decay rates and constraints on its couplings from a combined ATLAS and CMS analysis of the LHC pp collision data at s = 7 $$ \sqrt{s}=7 $$ and 8 TeV
journal, August 2016

The hunt for New Physics in the Flavour Sector with up vector-like quarks
journal, December 2012

Gluon-fusion Higgs production in the Standard Model Effective Field Theory
journal, December 2017

Search for top quark decays t → qH, with H → γγ, in s = 13 $$ \sqrt{s}=13 $$ TeV pp collisions using the ATLAS detector
journal, October 2017

Vectorlike fermions and Higgs effective field theory revisited
journal, July 2017

Probing Higgs boson couplings in H + γ production at the LHC
journal, October 2017

Higgs boson pair production in new physics models at hadron, lepton, and photon colliders
journal, December 2010

Higgs pair production at next-to-next-to-leading logarithmic accuracy at the LHC
journal, September 2015

Flavour-changing decays of a 125 GeV Higgs-like particle
journal, June 2012

Single top and Higgs associated production as a probe of the $Ht\overline{t}$ coupling sign at the LHC
journal, January 2013