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Title: Exotic lepton-flavor violating Higgs decays

Abstract

Exotic Higgs decays are promising channels to discover new physics in the near future. We present a simple model with a new light scalar that couples to the Standard Model through a charged lepton-flavor violating interaction. This can yield exciting new signatures, such as h → e +e +µ -µ -, that currently have no dedicated searches at the Large Hadron Collider. We discuss this model in detail, assess sensitivity from flavor constraints, explore current constraints from existing multi-lepton searches, and construct a new search strategy to optimally target these exotic, lepton-flavor violating Higgs decays.

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]
  1. Univ. of Cincinnati, OH (United States). Dept. of Physics
  2. Univ. of California, Riverside, CA (United States). Dept. of Physics and Astronomy
  3. Chinese Academy of Sciences (CAS), Beijing (China). Inst. of Theoretical Physics
Publication Date:
Research Org.:
Univ. of California, Riverside, CA (United States); Univ. of Cincinnati, OH (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1801835
Grant/Contract Number:  
SC0008541; 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: 2020; Journal Issue: 1; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Physics

Citation Formats

Evans, Jared A., Tanedo, Philip, and Zakeri, Mohammadreza. Exotic lepton-flavor violating Higgs decays. United States: N. p., 2020. Web. doi:10.1007/jhep01(2020)028.
Evans, Jared A., Tanedo, Philip, & Zakeri, Mohammadreza. Exotic lepton-flavor violating Higgs decays. United States. https://doi.org/10.1007/jhep01(2020)028
Evans, Jared A., Tanedo, Philip, and Zakeri, Mohammadreza. Tue . "Exotic lepton-flavor violating Higgs decays". United States. https://doi.org/10.1007/jhep01(2020)028. https://www.osti.gov/servlets/purl/1801835.
@article{osti_1801835,
title = {Exotic lepton-flavor violating Higgs decays},
author = {Evans, Jared A. and Tanedo, Philip and Zakeri, Mohammadreza},
abstractNote = {Exotic Higgs decays are promising channels to discover new physics in the near future. We present a simple model with a new light scalar that couples to the Standard Model through a charged lepton-flavor violating interaction. This can yield exciting new signatures, such as h → e +e +µ -µ -, that currently have no dedicated searches at the Large Hadron Collider. We discuss this model in detail, assess sensitivity from flavor constraints, explore current constraints from existing multi-lepton searches, and construct a new search strategy to optimally target these exotic, lepton-flavor violating Higgs decays.},
doi = {10.1007/jhep01(2020)028},
journal = {Journal of High Energy Physics (Online)},
number = 1,
volume = 2020,
place = {United States},
year = {Tue Jan 07 00:00:00 EST 2020},
month = {Tue Jan 07 00:00:00 EST 2020}
}

Works referenced in this record:

Charged lepton flavor violation: An experimenter’s guide
journal, November 2013


The anti- k t jet clustering algorithm
journal, April 2008


Review of Particle Physics
text, January 2008


The Unexplored Landscape of Two-body Resonances
journal, January 2019


FeynRules – Feynman rules made easy
journal, September 2009


Performance of Electron Reconstruction and Selection with the CMS Detector in Proton-Proton Collisions at √s = 8 TeV
text, January 2015


Secluded WIMP dark matter
journal, April 2008


Dark matter from minimal flavor violation
journal, August 2011

  • Batell, Brian; Pradler, Josef; Spannowsky, Michael
  • Journal of High Energy Physics, Vol. 2011, Issue 8
  • DOI: 10.1007/JHEP08(2011)038

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

  • Alwall, J.; Frederix, R.; Frixione, S.
  • Journal of High Energy Physics, Vol. 2014, Issue 7
  • DOI: 10.1007/JHEP07(2014)079

Lepton-Flavor Violating Mediators
text, January 2016


FastJet user manual: (for version 3.0.2)
journal, March 2012


Dark matter annihilation in the Galactic Center as seen by the Fermi Gamma Ray Space Telescope
journal, March 2011


Background model systematics for the Fermi GeV excess
text, January 2014


Review of Particle Physics
journal, August 2018


An Introduction to Explicit R-Parity Violation
book, April 2010


The consistency of Fermi-LAT observations of the galactic center with a millisecond pulsar population in the central stellar cluster
journal, March 2011


Review of Particle Physics
text, January 2012

  • Beringer, J.; Arguin, J.; Barnett, R.
  • Deutsches Elektronen-Synchrotron, DESY, Hamburg
  • DOI: 10.3204/phppubdb-24149

Secluded U(1) below the weak scale
text, January 2008


Hierarchy of quark masses, cabibbo angles and CP violation
journal, January 1979


ZZ production at the LHC: NLO QCD corrections to the loop-induced gluon fusion channel
text, January 2018

  • Grazzini, Massimiliano; Kallweit, Stefan; Wiesemann, Marius
  • University of Zurich
  • DOI: 10.5167/uzh-161941

Searching for Higgs Decays to as Many as 8 Leptons
journal, November 2018


FeynRules - Feynman rules made easy
text, January 2008


Search for lepton-flavor-violating τ decays into three leptons with 719 million produced <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msup><mml:mi>τ</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:msup><mml:mi>τ</mml:mi><mml:mo>−</mml:mo></mml:msup></mml:math> pairs
journal, April 2010


The anti-k_t jet clustering algorithm
text, January 2008


Status of the Mu3e Experiment at PSI
text, January 2016


A comment on the emission from the Galactic Center as seen by the Fermi telescope
journal, November 2011


R-parity violating supersymmetry
text, January 2004


The size of the proton: From the Lamb-shift in muonic hydrogen
journal, October 2011


Secluded U(1) below the weak scale
journal, November 2009


ZZ production at the LHC: NLO QCD corrections to the loop-induced gluon fusion channel
text, January 2019

  • Grazzini, Massimiliano; Kallweit, Stefan; Wiesemann, Marius
  • Springer
  • DOI: 10.5167/uzh-170552

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

  • Asadi, Pouya; Buckley, Matthew R.; Shih, David
  • Journal of High Energy Physics, Vol. 2018, Issue 9
  • DOI: 10.1007/JHEP09(2018)010

Review of Particle Physics
text, January 2018


Lepton flavor violation with displaced vertices
journal, January 2018


A light Z ′ for the R K puzzle and nonstandard neutrino interactions
journal, May 2017


Status of the Mu3e Experiment at PSI
journal, January 2016


Right-handed neutrinos and R(D(∗))
journal, February 2019

  • Robinson, Dean; Shakya, Bibhushan; Zupan, Jure
  • Journal of High Energy Physics, Vol. 2019, Issue 2
  • DOI: 10.1007/JHEP02(2019)119

Flavor violating Higgs decays
journal, March 2013

  • Harnik, Roni; Kopp, Joachim; Zupan, Jure
  • Journal of High Energy Physics, Vol. 2013, Issue 3
  • DOI: 10.1007/JHEP03(2013)026

The size of the proton
journal, July 2010

  • Pohl, Randolf; Antognini, Aldo; Nez, François
  • Nature, Vol. 466, Issue 7303
  • DOI: 10.1038/nature09250

Incorporating systematic uncertainties into an upper limit
journal, August 1992

  • Cousins, Robert D.; Highland, Virgil L.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 320, Issue 1-2
  • DOI: 10.1016/0168-9002(92)90794-5

Lepton flavor violation induced by a neutral scalar at future lepton colliders
conference, August 2019

  • Mohapatra, Rabindra; Dev, P. S. Bhupal; Zhang, Yongchao
  • Proceedings of The 39th International Conference on High Energy Physics — PoS(ICHEP2018)
  • DOI: 10.22323/1.340.0645

Confidence level computation for combining searches with small statistics
journal, September 1999

  • Junk, Thomas
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 434, Issue 2-3
  • DOI: 10.1016/S0168-9002(99)00498-2

Two emission mechanisms in the Fermi Bubbles: A possible signal of annihilating dark matter
journal, September 2013


R-Parity-violating supersymmetry
journal, November 2005


Two-component spinor techniques and Feynman rules for quantum field theory and supersymmetry
journal, September 2010


The characterization of the gamma-ray signal from the central Milky Way: A case for annihilating dark matter
journal, June 2016


An introduction to PYTHIA 8.2
journal, June 2015

  • Sjöstrand, Torbjörn; Ask, Stefan; Christiansen, Jesper R.
  • Computer Physics Communications, Vol. 191
  • DOI: 10.1016/j.cpc.2015.01.024

R(D(∗)) from W ′ and right-handed neutrinos
journal, September 2018

  • Greljo, Admir; Robinson, Dean J.; Shakya, Bibhushan
  • Journal of High Energy Physics, Vol. 2018, Issue 9
  • DOI: 10.1007/JHEP09(2018)169

Lepton Flavor Violation with Displaced Vertices
text, January 2017


Presentation of search results: the CL s technique
journal, September 2002


Secluded WIMP Dark Matter
text, January 2007


Looking for the WIMP next door
journal, February 2018

  • Evans, Jared A.; Gori, Stefania; Shelton, Jessie
  • Journal of High Energy Physics, Vol. 2018, Issue 2
  • DOI: 10.1007/JHEP02(2018)100

ZZ production at the LHC: NLO QCD corrections to the loop-induced gluon fusion channel
journal, March 2019

  • Grazzini, Massimiliano; Kallweit, Stefan; Wiesemann, Marius
  • Journal of High Energy Physics, Vol. 2019, Issue 3
  • DOI: 10.1007/JHEP03(2019)070

Proton Size Anomaly
journal, April 2011


Lepton Flavor Violation Induced by a Neutral Scalar at Future Lepton Colliders
text, January 2017


Background model systematics for the Fermi GeV excess
journal, March 2015

  • Calore, Francesca; Cholis, Ilias; Weniger, Christoph
  • Journal of Cosmology and Astroparticle Physics, Vol. 2015, Issue 03
  • DOI: 10.1088/1475-7516/2015/03/038

Lepton Flavor Violation Induced by a Neutral Scalar at Future Lepton Colliders
journal, May 2018


Dark-Matter Particles without Weak-Scale Masses or Weak Interactions
journal, December 2008


A light $Z^\prime$ for the $R_K$ puzzle and nonstandard neutrino interactions
text, January 2017


A light Z ′ for the R K puzzle and nonstandard neutrino interactions
journal, May 2017


Muonium-antimuonium oscillations and exotic muon decay in brokenR-parity SUSY models
journal, October 1993


Dark Matter from Minimal Flavor Violation
text, January 2011


Flavor-specific scalar mediators
text, January 2017