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Title: Heavy Higgs as a portal to the supersymmetric electroweak sector

Abstract

The electroweak sector of the Minimal Supersymmetric Standard Model (MSSM) - neutralinos, charginos and sleptons - remains relatively weakly constrained at the LHC due in part to the small production cross sections of these particles. In this paper, we study the prospects of searching for decays of heavy Higgs bosons into these superpartners at the high luminosity LHC. In addition to the kinematic handles offered by the presence of a resonant particle in the production chain, heavy Higgs decays can be the dominant production modes of these superpartners, making it possible to extend coverage to otherwise inaccessible regions of the supersymmetry and heavy Higgs parameter space. We illustrate our ideas with detailed collider analyses of two specific topologies: We propose search strategies for heavy Higgs decay to a pair of neutralinos, which can probe heavy Higgs bosons up to 1 TeV in the intermediate tan $$\beta (\sim 2-8)$$ region, where standard heavy Higgs searches have no reach. Similarly, we show that targeted searches for heavy Higgs decays into staus can probe stau masses up to several hundred GeV. We also provide a general overview of additional decay channels that might be accessible at the high luminosity LHC. This motivates a broader program for LHC heavy Higgs searches.

Authors:
 [1];  [2];  [3]
  1. Univ. of California, Santa Cruz, CA (United States)
  2. Univ. of Maryland, College Park, MD (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  3. Univ. of California, Santa Cruz, CA (United States); Univ. of Cincinnati, OH (United States); Univ. of Michigan, Ann Arbor, MI (United States)
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1489391
Report Number(s):
arXiv:1811.11918; FERMILAB-PUB-18-659-T
Journal ID: ISSN 1029-8479; 1705869
Grant/Contract Number:  
AC02-07CH11359
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: 2019; Journal Issue: 4; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Supersymmetry Phenomenology

Citation Formats

Gori, Stefania, Liu, Zhen, and Shakya, Bibhushan. Heavy Higgs as a portal to the supersymmetric electroweak sector. United States: N. p., 2019. Web. doi:10.1007/JHEP04(2019)049.
Gori, Stefania, Liu, Zhen, & Shakya, Bibhushan. Heavy Higgs as a portal to the supersymmetric electroweak sector. United States. doi:10.1007/JHEP04(2019)049.
Gori, Stefania, Liu, Zhen, and Shakya, Bibhushan. Fri . "Heavy Higgs as a portal to the supersymmetric electroweak sector". United States. doi:10.1007/JHEP04(2019)049. https://www.osti.gov/servlets/purl/1489391.
@article{osti_1489391,
title = {Heavy Higgs as a portal to the supersymmetric electroweak sector},
author = {Gori, Stefania and Liu, Zhen and Shakya, Bibhushan},
abstractNote = {The electroweak sector of the Minimal Supersymmetric Standard Model (MSSM) - neutralinos, charginos and sleptons - remains relatively weakly constrained at the LHC due in part to the small production cross sections of these particles. In this paper, we study the prospects of searching for decays of heavy Higgs bosons into these superpartners at the high luminosity LHC. In addition to the kinematic handles offered by the presence of a resonant particle in the production chain, heavy Higgs decays can be the dominant production modes of these superpartners, making it possible to extend coverage to otherwise inaccessible regions of the supersymmetry and heavy Higgs parameter space. We illustrate our ideas with detailed collider analyses of two specific topologies: We propose search strategies for heavy Higgs decay to a pair of neutralinos, which can probe heavy Higgs bosons up to 1 TeV in the intermediate tan $\beta (\sim 2-8)$ region, where standard heavy Higgs searches have no reach. Similarly, we show that targeted searches for heavy Higgs decays into staus can probe stau masses up to several hundred GeV. We also provide a general overview of additional decay channels that might be accessible at the high luminosity LHC. This motivates a broader program for LHC heavy Higgs searches.},
doi = {10.1007/JHEP04(2019)049},
journal = {Journal of High Energy Physics (Online)},
number = 4,
volume = 2019,
place = {United States},
year = {2019},
month = {4}
}

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