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Title: Signal of four muons or more from a vector-like lepton decaying to a muon-philic Z boson at the LHC

Abstract

We propose a novel possibility to detect a very distinctive signal with more than four muons originating from pair-produced vector-like leptons decaying to a muon-philic Z' boson. These new particles are good candidates to explain the anomalies in the muon anomalous magnetic moment and the b → sℓℓ processes. The doublet (singlet) vector-like leptons lighter than 1.3 (1.0) TeV are excluded by the latest data at the LHC if BR(E → Z'μ) = 1. We also show that the excess in the signal region with more than five leptons can be explained by this scenario if the vector-like lepton is a weak singlet, with mass about 400 GeV and BR(E → Z'μ) = 0.25. The future prospects at the HL-LHC are discussed.

Authors:
ORCiD logo; ORCiD logo
Publication Date:
Research Org.:
The Ohio State Univ., Columbus, OH (United States)
Sponsoring Org.:
USDOE Office of Science (SC); Institute for Basic Science (IBS); Ministry of Education, Science, Sports and Culture (MEXT)
OSTI Identifier:
1812832
Alternate Identifier(s):
OSTI ID: 1851541
Grant/Contract Number:  
SC0011726; IBS-R018-D1; 18K13534
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Name: Physical Review D Journal Volume: 104 Journal Issue: 3; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; astronomy & astrophysics; physics; electroweak radiative corrections; electroweak interaction; extensions of Higgs sector; hypothetical particle physics models; extensions of fermion sector; extensions of gauge sector; magnetic moment; particle decays; particle phenomena; particle interactions; particle production

Citation Formats

Kawamura, Junichiro, and Raby, Stuart. Signal of four muons or more from a vector-like lepton decaying to a muon-philic Z ′ boson at the LHC. United States: N. p., 2021. Web. doi:10.1103/PhysRevD.104.035007.
Kawamura, Junichiro, & Raby, Stuart. Signal of four muons or more from a vector-like lepton decaying to a muon-philic Z ′ boson at the LHC. United States. https://doi.org/10.1103/PhysRevD.104.035007
Kawamura, Junichiro, and Raby, Stuart. Wed . "Signal of four muons or more from a vector-like lepton decaying to a muon-philic Z ′ boson at the LHC". United States. https://doi.org/10.1103/PhysRevD.104.035007.
@article{osti_1812832,
title = {Signal of four muons or more from a vector-like lepton decaying to a muon-philic Z ′ boson at the LHC},
author = {Kawamura, Junichiro and Raby, Stuart},
abstractNote = {We propose a novel possibility to detect a very distinctive signal with more than four muons originating from pair-produced vector-like leptons decaying to a muon-philic Z' boson. These new particles are good candidates to explain the anomalies in the muon anomalous magnetic moment and the b → sℓℓ processes. The doublet (singlet) vector-like leptons lighter than 1.3 (1.0) TeV are excluded by the latest data at the LHC if BR(E → Z'μ) = 1. We also show that the excess in the signal region with more than five leptons can be explained by this scenario if the vector-like lepton is a weak singlet, with mass about 400 GeV and BR(E → Z'μ) = 0.25. The future prospects at the HL-LHC are discussed.},
doi = {10.1103/PhysRevD.104.035007},
journal = {Physical Review D},
number = 3,
volume = 104,
place = {United States},
year = {Wed Aug 11 00:00:00 EDT 2021},
month = {Wed Aug 11 00:00:00 EDT 2021}
}

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