Studies of lepton flavor violation at the LHC

Bhattacharya, Bhubanjyoti; Morgan, Robert; Osborne, James; Petrov, Alexey A.

doi:10.1016/j.physletb.2018.08.037

Title: Studies of lepton flavor violation at the LHC

Abstract

We examine the charged lepton flavor violating process gg →μ^±τ^∓ at the $$\sqrt{s}$$ = 13 TeV LHC. Operators generating this process can be induced by new physics (NP) at dimension 8. Despite the power suppression associated with dimension 8 operators, we show that the LHC's large gluon luminosity makes it possible to probe this channel. For an integrated luminosity of 100 fb^-1 at the LHC, we predict a constraint on the NP scale Λ ≳ 3 TeV. In addition, we point out that such operators can be induced through top quark loops in models that generate dimension 6 operators of the form $$\bar{t}t$$ $μτ$. We find that the NP scale of these dimension 6 operators can be constrained to be Λ ≳ 3.4-4.1 TeV with 100 fb^-1 of data.

Authors:

; Morgan, Robert;

;

Publication Date:: Mon Oct 01 00:00:00 EDT 2018

Research Org.:: Wayne State Univ., Detroit, MI (United States)

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

OSTI Identifier:: 1466840

Alternate Identifier(s):: OSTI ID: 1611003

Grant/Contract Number:: SC0007983; PHY-1460853

Resource Type:: Published Article

Journal Name:: Physics Letters. B

Additional Journal Information:: Journal Name: Physics Letters. B Journal Volume: 785 Journal Issue: C; Journal ID: ISSN 0370-2693

Publisher:: Elsevier

Country of Publication:: Netherlands

Language:: English

Subject:: 79 ASTRONOMY AND ASTROPHYSICS; Astronomy & Astrophysics; Physics

Citation Formats


                    Bhattacharya, Bhubanjyoti, Morgan, Robert, Osborne, James, and Petrov, Alexey A. Studies of lepton flavor violation at the LHC.  Netherlands: N. p., 2018. 
Web.  doi:10.1016/j.physletb.2018.08.037.

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                    Bhattacharya, Bhubanjyoti, Morgan, Robert, Osborne, James, & Petrov, Alexey A. Studies of lepton flavor violation at the LHC.  Netherlands.  https://doi.org/10.1016/j.physletb.2018.08.037

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                    Bhattacharya, Bhubanjyoti, Morgan, Robert, Osborne, James, and Petrov, Alexey A. Mon .  
"Studies of lepton flavor violation at the LHC".  Netherlands.  https://doi.org/10.1016/j.physletb.2018.08.037.

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@article{osti_1466840,

  title        = {Studies of lepton flavor violation at the LHC},

  author       = {Bhattacharya, Bhubanjyoti and Morgan, Robert and Osborne, James and Petrov, Alexey A.},

  abstractNote = {We examine the charged lepton flavor violating process gg →μ±τ∓ at the $\sqrt{s}$ = 13 TeV LHC. Operators generating this process can be induced by new physics (NP) at dimension 8. Despite the power suppression associated with dimension 8 operators, we show that the LHC's large gluon luminosity makes it possible to probe this channel. For an integrated luminosity of 100 fb-1 at the LHC, we predict a constraint on the NP scale Λ ≳ 3 TeV. In addition, we point out that such operators can be induced through top quark loops in models that generate dimension 6 operators of the form $\bar{t}t$ $μτ$. We find that the NP scale of these dimension 6 operators can be constrained to be Λ ≳ 3.4-4.1 TeV with 100 fb-1 of data.},

  doi          = {10.1016/j.physletb.2018.08.037},

  journal      = {Physics Letters. B},

  number       = C,

  volume       = 785,

  place        = {Netherlands},

  year         = {Mon Oct 01 00:00:00 EDT 2018},

  month        = {Mon Oct 01 00:00:00 EDT 2018}

}

Copy to clipboard

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Title: Studies of lepton flavor violation at the LHC

Abstract

Citation Formats

Lepton Flavor Violation in B Decays? journal, March 2015

Quark flavor transitions in L μ − L τ models journal, May 2014

Model-discriminating power of lepton flavor violating τ decays journal, May 2014

Measurement of an excess of B ¯ → D ( * ) τ − ν ¯ τ decays and implications for charged Higgs bosons journal, October 2013

Lepton flavor-violating transitions in effective field theory and gluonic operators journal, February 2014

Explaining the B → K * μ + μ − data with scalar interactions journal, March 2014

R ( D (⁎) ) in a general two Higgs doublet model journal, December 2017

A brief introduction to PYTHIA 8.1 journal, June 2008

Measurement of the branching ratio of B ¯ → D ( * ) τ − ν ¯ τ relative to B ¯ → D ( * ) ℓ − ν ¯ ℓ decays with hadronic tagging at Belle journal, October 2015

New physics in b → s μ + μ − : Distinguishing models through C P -violating effects journal, July 2017

Simultaneous explanation of the R K and R ( D (⁎) ) puzzles journal, March 2015

Measurement of the Ratio of Branching Fractions B ( B ¯ 0 → D * + τ − ν ¯ τ ) / B ( B ¯ 0 → D * + μ − ν ¯ μ ) journal, September 2015

Probing lepton gluonic couplings at the LHC journal, June 2012

Mass-matrix ansatz and flavor nonconservation in models with multiple Higgs doublets journal, June 1987

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

Higgs mediated CLFV processes μN ( eN )→ τX via gluon operators journal, September 2017

τ − μ flavor violation as a probe of the scale of new physics journal, September 2002

Search for lepton-flavour-violating decays of the Higgs and Z bosons with the ATLAS detector journal, February 2017

Family nonuniversal Z ′ models with protected flavor-changing interactions journal, July 2015

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

A call for new physics: The muon anomalous magnetic moment and lepton flavor violation journal, February 2018

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Understanding the B → K * μ + μ − anomaly journal, October 2013

$$\mu \rightarrow e \gamma $$ μ → e γ and matching at $$\varvec{m_W}$$ m W journal, July 2016

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New physics in b → s μ + μ − after the measurement of R K * journal, November 2017

Search for lepton-flavour-violating decays of the Higgs boson journal, October 2015

Flavor physics of leptons and dipole moments journal, September 2008

Bounds on R -parity violating supersymmetric couplings from leptonic and semileptonic meson decays journal, June 2007

New physics in B→K ∗ μμ? journal, November 2013

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

Lepton Flavor Violation in $B$ Decays?
journal, March 2015

Quark flavor transitions in $L_{μ} - L_{τ}$ models
journal, May 2014

Model-discriminating power of lepton flavor violating $τ$ decays
journal, May 2014

Measurement of an excess of $\bar{B} \to D^{(*)} τ^{-} {\bar{ν}}_{τ}$ decays and implications for charged Higgs bosons
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Lepton flavor-violating transitions in effective field theory and gluonic operators
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Explaining the $B \to K^{*} μ^{+} μ^{-}$ data with scalar interactions
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R ( D (⁎) ) in a general two Higgs doublet model
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Mass-matrix ansatz and flavor nonconservation in models with multiple Higgs doublets
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Lepton-Flavor-Dependent Angular Analysis of $B \to K^{*} ℓ^{+} ℓ^{-}$
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Higgs mediated CLFV processes μN ( eN )→ τX via gluon operators
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Search for lepton-flavour-violating decays of the Higgs and Z bosons with the ATLAS detector
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Family nonuniversal $Z^{'}$ models with protected flavor-changing interactions
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Test of Lepton Universality Using $B^{+} \to K^{+} ℓ^{+} ℓ^{-}$ Decays
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A call for new physics: The muon anomalous magnetic moment and lepton flavor violation
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Interpreting hints for lepton flavor universality violation
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Testing leptoquark models in $\bar{B} \to D^{(*)} τ \bar{ν}$
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Exotic μτjj events from heavy ISS neutrinos at the LHC
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Understanding the $B \to K^{*} μ^{+} μ^{-}$ anomaly
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$$\mu \rightarrow e \gamma $$ μ → e γ and matching at $$\varvec{m_W}$$ m W
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Comprehensive analysis on lepton flavor violating Higgs boson to $μ^{\mp} τ^{\pm}$ decay in supersymmetry without $R$ parity
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Lepton flavor violating quarkonium decays
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New physics in $b \to s μ^{+} μ^{-}$ after the measurement of $R_{K^{*}}$
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Bounds on $R$ -parity violating supersymmetric couplings from leptonic and semileptonic meson decays
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