Implications of a light “dark Higgs” solution to the gμ-2 discrepancy

Chen, Chien-Yi; Davoudiasl, Hooman; Marciano, William J.; Zhang, Cen

doi:10.1103/PhysRevD.93.035006

Title: Implications of a light “dark Higgs” solution to the $g_{μ} - 2$ discrepancy

Abstract

A light scalar Φ with mass ≲1 GeV and muonic coupling O(10^-3) would explain the 3.5σ discrepancy between the Standard Model (SM) muon g-2 prediction and experiment. Such a scalar can be associated with a light remnant of the Higgs mechanism in the “dark” sector. We suggest Φ→l⁺l^- bump hunting in μ→eν$$\vec{v}$$Φ, μ-p→ν_μnΦ (muon capture), and K^±→μ^±νΦ decays as direct probes of this scenario. In a general setup, a potentially observable muon electric dipole moment ≲10^-23 e cm and lepton-flavor-violating decays τ→μ(e)Φ or μ→eΦ can also arise. A deviation in BR(H→μ⁺μ^-) from SM expectations, due to Higgs coupling misalignment, can result depending on certain parameters. Here, we illustrate how the requisite interactions can be mediated by weak-scale vector-like leptons that typically lie within the reach of future LHC measurements.

Authors:

Chen, Chien-Yi ^[1]; Davoudiasl, Hooman ^[2]; Marciano, William J. ^[2]; Zhang, Cen ^[2]

Brookhaven National Lab. (BNL), Upton, NY (United States); Univ. of Victoria, BC (Canada); Perimeter Inst. for Theoretical Physics, Waterloo, ON (Canada)
Brookhaven National Lab. (BNL), Upton, NY (United States)

Publication Date:: Fri Feb 05 00:00:00 EST 2016

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

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

OSTI Identifier:: 1254817

Alternate Identifier(s):: OSTI ID: 1237120

Report Number(s):: BNL-112231-2016-JA
Journal ID: ISSN 2470-0010; PRVDAQ; KA2401012

Grant/Contract Number:: SC00112704; SC0012704

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review D

Additional Journal Information:: Journal Volume: 93; Journal Issue: 3; Journal ID: ISSN 2470-0010

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; higgs; HEP; dark matter; scalar; SM; muon; g-2

Citation Formats


                    Chen, Chien-Yi, Davoudiasl, Hooman, Marciano, William J., and Zhang, Cen. Implications of a light “dark Higgs” solution to the gμ-2 discrepancy.  United States: N. p., 2016. 
Web.  doi:10.1103/PhysRevD.93.035006.

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                    Chen, Chien-Yi, Davoudiasl, Hooman, Marciano, William J., & Zhang, Cen. Implications of a light “dark Higgs” solution to the gμ-2 discrepancy.  United States.  https://doi.org/10.1103/PhysRevD.93.035006

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                    Chen, Chien-Yi, Davoudiasl, Hooman, Marciano, William J., and Zhang, Cen. Fri .  
"Implications of a light “dark Higgs” solution to the gμ-2 discrepancy".  United States.  https://doi.org/10.1103/PhysRevD.93.035006.  https://www.osti.gov/servlets/purl/1254817.

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@article{osti_1254817,

  title        = {Implications of a light “dark Higgs” solution to the gμ-2 discrepancy},

  author       = {Chen, Chien-Yi and Davoudiasl, Hooman and Marciano, William J. and Zhang, Cen},

  abstractNote = {A light scalar Φ with mass ≲1 GeV and muonic coupling O(10-3) would explain the 3.5σ discrepancy between the Standard Model (SM) muon g-2 prediction and experiment. Such a scalar can be associated with a light remnant of the Higgs mechanism in the “dark” sector. We suggest Φ→l+l- bump hunting in μ→eν$\vec{v}$Φ, μ-p→νμnΦ (muon capture), and K±→μ±νΦ decays as direct probes of this scenario. In a general setup, a potentially observable muon electric dipole moment ≲10-23 e cm and lepton-flavor-violating decays τ→μ(e)Φ or μ→eΦ can also arise. A deviation in BR(H→μ+μ-) from SM expectations, due to Higgs coupling misalignment, can result depending on certain parameters. Here, we illustrate how the requisite interactions can be mediated by weak-scale vector-like leptons that typically lie within the reach of future LHC measurements.},

  doi          = {10.1103/PhysRevD.93.035006},

  journal      = {Physical Review D},

  number       = 3,

  volume       = 93,

  place        = {United States},

  year         = {Fri Feb 05 00:00:00 EST 2016},

  month        = {Fri Feb 05 00:00:00 EST 2016}

}

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Works referencing / citing this record:

Discovering true muonium at LHCb
journal, September 2019

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Title: Implications of a light “dark Higgs” solution to the g μ - 2 discrepancy

Abstract

Citation Formats

The new Minimal Standard Model journal, March 2005

Modified Higgs branching ratios versus C P and lepton flavor violation journal, December 2012

Solar gamma rays powered by secluded dark matter journal, April 2010

Review of Particle Physics journal, August 2014

Hadronic contribution to the muon anomalous magnetic moment to next-to-next-to-leading order journal, June 2014

“Dark” Z implications for parity violation, rare meson decays, and Higgs physics journal, June 2012

Two U(1)'s and ϵ charge shifts journal, January 1986

Muon g − 2 , rare kaon decays, and parity violation from dark bosons journal, May 2014

Low Q 2 weak mixing angle measurements and rare Higgs decays journal, September 2015

Dark side of Higgs diphoton decays and muon g − 2 journal, November 2012

Muonic hydrogen and MeV forces journal, May 2011

The second-order weak correction to (g - 2) of the muon in arbitrary gauge models journal, May 1978

Tenth-order electron anomalous magnetic moment: Contribution of diagrams without closed lepton loops journal, February 2015

Fermion electric dipole moments, muon polarization in η→μμ¯ , K L 0 →μμ¯ decays, and the scalar-pseudoscalar mixing mechanism journal, June 1989

CP violation in η , K L → μ μ ¯ decays and electric dipole moments of electron and muon journal, September 1990

Electric dipole moment of the electron and of the neutron journal, July 1990

Electric Dipole Moment of the Electron and of the Neutron journal, December 1990

Improved limit on the muon electric dipole moment journal, September 2009

A New Method For A Sensitive Deuteron EDM Experiment conference, January 2004

A sensitive search for a muon electric dipole moment conference, January 2001

Order of Magnitude Smaller Limit on the Electric Dipole Moment of the Electron journal, December 2013

Projections for dark photon searches at Mu3e journal, January 2015

Constraint on Parity-Violating Muonic Forces journal, February 2012

Constraints on the dark photon parameter space from leptonic rare kaon decays journal, January 2013

Constraints to new physics models for the proton charge radius puzzle from the decay K + → μ + + ν + e − + e + journal, February 2014

Mechanism for Nonconservation of Muon Number journal, March 1977

Experimental constraints on the coupling of the Higgs boson to electrons journal, May 2015

Discovering charged Higgs bosons in the W plus dark vector boson decay mode journal, June 2014

Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at s = 8 $$ \sqrt{s}=8 $$ TeV with the ATLAS detector journal, September 2015

Discovering true muonium at LHCb journal, September 2019

Dark sectors at the Fermilab SeaQuest experiment journal, August 2018

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Probing Muonphilic Force Carriers and Dark Matter at Kaon Factories journal, January 2020

Constraining screened fifth forces with the electron magnetic moment text, January 2018

Dark Sectors at the Fermilab SeaQuest Experiment text, January 2018

Kinetic Mixing and Portal Matter Phenomenology text, January 2018

Title: Implications of a light “dark Higgs” solution to the $g_{μ} - 2$ discrepancy

The new Minimal Standard Model
journal, March 2005

Modified Higgs branching ratios versus $C P$ and lepton flavor violation
journal, December 2012

Solar gamma rays powered by secluded dark matter
journal, April 2010

Review of Particle Physics
journal, August 2014

Hadronic contribution to the muon anomalous magnetic moment to next-to-next-to-leading order
journal, June 2014

“Dark” $Z$ implications for parity violation, rare meson decays, and Higgs physics
journal, June 2012

Two U(1)'s and ϵ charge shifts
journal, January 1986

Muon $g - 2$ , rare kaon decays, and parity violation from dark bosons
journal, May 2014

Low $Q^{2}$ weak mixing angle measurements and rare Higgs decays
journal, September 2015

Dark side of Higgs diphoton decays and muon $g - 2$
journal, November 2012

Muonic hydrogen and MeV forces
journal, May 2011

The second-order weak correction to (g - 2) of the muon in arbitrary gauge models
journal, May 1978

Tenth-order electron anomalous magnetic moment: Contribution of diagrams without closed lepton loops
journal, February 2015

Fermion electric dipole moments, muon polarization in η→μμ¯ , $K_{L}^{0}$ →μμ¯ decays, and the scalar-pseudoscalar mixing mechanism
journal, June 1989

$CP$ violation in $η$ , $K_{L} \to μ \bar{μ}$ decays and electric dipole moments of electron and muon
journal, September 1990

Electric dipole moment of the electron and of the neutron
journal, July 1990

Electric Dipole Moment of the Electron and of the Neutron
journal, December 1990

Improved limit on the muon electric dipole moment
journal, September 2009

A New Method For A Sensitive Deuteron EDM Experiment
conference, January 2004

A sensitive search for a muon electric dipole moment
conference, January 2001

Order of Magnitude Smaller Limit on the Electric Dipole Moment of the Electron
journal, December 2013

Projections for dark photon searches at Mu3e
journal, January 2015

Constraint on Parity-Violating Muonic Forces
journal, February 2012

Constraints on the dark photon parameter space from leptonic rare kaon decays
journal, January 2013

Constraints to new physics models for the proton charge radius puzzle from the decay $K^{+} \to μ^{+} + ν + e^{-} + e^{+}$
journal, February 2014

Mechanism for Nonconservation of Muon Number
journal, March 1977

Experimental constraints on the coupling of the Higgs boson to electrons
journal, May 2015

Discovering charged Higgs bosons in the $W$ plus dark vector boson decay mode
journal, June 2014

Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at s = 8 $$ \sqrt{s}=8 $$ TeV with the ATLAS detector
journal, September 2015

Discovering true muonium at LHCb
journal, September 2019

Dark sectors at the Fermilab SeaQuest experiment
journal, August 2018

Dark matter, millicharges, axion and scalar particles, gauge bosons, and other new physics with LDMX
journal, April 2019

Probing Muonphilic Force Carriers and Dark Matter at Kaon Factories
journal, January 2020

Constraining screened fifth forces with the electron magnetic moment
text, January 2018

Dark Sectors at the Fermilab SeaQuest Experiment
text, January 2018

Kinetic Mixing and Portal Matter Phenomenology
text, January 2018