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Title: R -parity violating supersymmetry and the 125 GeV Higgs boson signals

Abstract

We observe the impact of R -parity violating super symmetry (RPV SUSY) on the 125 GeV Higgs production and decay modes at the LHC. We assume a heavy SUSY spectrum with multi-TeV squarks and SU(2) scalar singlets as well as the decoupling limit in the SUSY Higgs sector. In this case the lightest CP-even Higgs is SM-like when R -parity is conserved. In contrast, we show that when R -parity violating interactions are added to the SUSY framework, significant deviations may occur in some production and decay channels of the 125 GeV Higgs-like state. Indeed, we assume a single-flavor (mostly third generation) Bilinear RPV (BRPV) interactions, which generate Higgs-sneutrino mixing, lepton-chargino mixing and neutrino-neutralino mixing, and find that notable deviations of $O$(20-30%) may be expected in the Higgs signal strength observables in some channels, e.g., in $pp → h → μ^+μ^-$, $τ^+τ^-$. Moreover, we find that new and detectable signals associated with BRPV Higgs decays to gauginos, $$h → ν_τ$$ $$\tilde{χ}$$$^0_2$$ and $$h → τ^±χ^∓_2$$, may also arise in this scenario. These decays yield a typical signature of $h → τ^±ℓ^∓$ + Ɇ$$_T$$ ($ℓ = e, μ, τ$) that can be much larger than in the SM, and may also be accompanied by an $O$(20-30%) enhancement in the diphoton signal $pp → h → γγ$. We also examine potential interesting signals of Trilinear R -parity violation (TRPV) interactions in the production and decays of the Higgs-sneutrino BRPV mixed state (assuming it is the 125 GeV scalar) and show that, in this case also, large deviations up to $O$(100%) are expected in e.g., $pp → h → μ^+μ^-, τ^+τ^-$, which are sensitive to the BRPV × TRPV coupling product.

Authors:
; ; ;
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
OSTI Identifier:
1580670
Alternate Identifier(s):
OSTI ID: 1595684
Report Number(s):
BNL-213580-2020-JAAM
Journal ID: ISSN 2470-0010; PRVDAQ; 115051
Grant/Contract Number:  
SC0012704
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Name: Physical Review D Journal Volume: 100 Journal Issue: 11; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Higgs Boson signals; supersymmetry; r-parity; SUSY

Citation Formats

Cohen, Jonathan, Bar-Shalom, Shaouly, Eilam, Gad, and Soni, Amarjit. R -parity violating supersymmetry and the 125 GeV Higgs boson signals. United States: N. p., 2019. Web. doi:10.1103/PhysRevD.100.115051.
Cohen, Jonathan, Bar-Shalom, Shaouly, Eilam, Gad, & Soni, Amarjit. R -parity violating supersymmetry and the 125 GeV Higgs boson signals. United States. doi:10.1103/PhysRevD.100.115051.
Cohen, Jonathan, Bar-Shalom, Shaouly, Eilam, Gad, and Soni, Amarjit. Tue . "R -parity violating supersymmetry and the 125 GeV Higgs boson signals". United States. doi:10.1103/PhysRevD.100.115051.
@article{osti_1580670,
title = {R -parity violating supersymmetry and the 125 GeV Higgs boson signals},
author = {Cohen, Jonathan and Bar-Shalom, Shaouly and Eilam, Gad and Soni, Amarjit},
abstractNote = {We observe the impact of R-parity violating super symmetry (RPV SUSY) on the 125 GeV Higgs production and decay modes at the LHC. We assume a heavy SUSY spectrum with multi-TeV squarks and SU(2) scalar singlets as well as the decoupling limit in the SUSY Higgs sector. In this case the lightest CP-even Higgs is SM-like when R-parity is conserved. In contrast, we show that when R-parity violating interactions are added to the SUSY framework, significant deviations may occur in some production and decay channels of the 125 GeV Higgs-like state. Indeed, we assume a single-flavor (mostly third generation) Bilinear RPV (BRPV) interactions, which generate Higgs-sneutrino mixing, lepton-chargino mixing and neutrino-neutralino mixing, and find that notable deviations of $O$(20-30%) may be expected in the Higgs signal strength observables in some channels, e.g., in $pp → h → μ^+μ^-$, $τ^+τ^-$. Moreover, we find that new and detectable signals associated with BRPV Higgs decays to gauginos, $h → ν_τ$ $\tilde{χ}$$^0_2$ and $h → τ^±χ^∓_2$, may also arise in this scenario. These decays yield a typical signature of $h → τ^±ℓ^∓$ + Ɇ$_T$ ($ℓ = e, μ, τ$) that can be much larger than in the SM, and may also be accompanied by an $O$(20-30%) enhancement in the diphoton signal $pp → h → γγ$. We also examine potential interesting signals of Trilinear R-parity violation (TRPV) interactions in the production and decays of the Higgs-sneutrino BRPV mixed state (assuming it is the 125 GeV scalar) and show that, in this case also, large deviations up to $O$(100%) are expected in e.g., $pp → h → μ^+μ^-, τ^+τ^-$, which are sensitive to the BRPV × TRPV coupling product.},
doi = {10.1103/PhysRevD.100.115051},
journal = {Physical Review D},
number = 11,
volume = 100,
place = {United States},
year = {2019},
month = {12}
}

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DOI: 10.1103/PhysRevD.100.115051

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