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Title: Lessons and prospects from the pMSSM after LHC Run I

Abstract

We study SUSY signatures at the 7, 8 and 14 TeV LHC employing the 19-parameter, R-parity conserving p(henomenological)MSSM, in the scenario with a neutralino lightest supersymmetric particle (LSP). Our results were obtained via a fast Monte Carlo simulation of the ATLAS SUSY analysis suite. The flexibility of this framework allows us to study a wide variety of SUSY phenomena simultaneously and to probe for weak spots in existing SUSY search analyses. We determine the ranges of the sparticle masses that are either disfavored or allowed after the searches with the 7 and 8 TeV data sets are combined. We find that natural SUSY models with light squarks and gluinos remain viable. We extrapolate to 14 TeV with both 300 fb(-1) and 3 ab(-1) of integrated luminosity and determine the expected sensitivity of the jets + MET and stop searches to the pMSSM parameter space. We find that the high-luminosity LHC will be powerful in probing SUSY with neutralino LSPs and can provide a more definitive statement on the existence of natural supersymmetry.

Authors:
; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science - Office of High Energy Physics
OSTI Identifier:
1396184
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles, Fields, Gravitation and Cosmology; Journal Volume: 91; Journal Issue: 5
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Cahill-Rowley, M., Hewett, J. L., Ismail, A., and Rizzo, T. G. Lessons and prospects from the pMSSM after LHC Run I. United States: N. p., 2015. Web. doi:10.1103/PhysRevD.91.055002.
Cahill-Rowley, M., Hewett, J. L., Ismail, A., & Rizzo, T. G. Lessons and prospects from the pMSSM after LHC Run I. United States. doi:10.1103/PhysRevD.91.055002.
Cahill-Rowley, M., Hewett, J. L., Ismail, A., and Rizzo, T. G. Sun . "Lessons and prospects from the pMSSM after LHC Run I". United States. doi:10.1103/PhysRevD.91.055002.
@article{osti_1396184,
title = {Lessons and prospects from the pMSSM after LHC Run I},
author = {Cahill-Rowley, M. and Hewett, J. L. and Ismail, A. and Rizzo, T. G.},
abstractNote = {We study SUSY signatures at the 7, 8 and 14 TeV LHC employing the 19-parameter, R-parity conserving p(henomenological)MSSM, in the scenario with a neutralino lightest supersymmetric particle (LSP). Our results were obtained via a fast Monte Carlo simulation of the ATLAS SUSY analysis suite. The flexibility of this framework allows us to study a wide variety of SUSY phenomena simultaneously and to probe for weak spots in existing SUSY search analyses. We determine the ranges of the sparticle masses that are either disfavored or allowed after the searches with the 7 and 8 TeV data sets are combined. We find that natural SUSY models with light squarks and gluinos remain viable. We extrapolate to 14 TeV with both 300 fb(-1) and 3 ab(-1) of integrated luminosity and determine the expected sensitivity of the jets + MET and stop searches to the pMSSM parameter space. We find that the high-luminosity LHC will be powerful in probing SUSY with neutralino LSPs and can provide a more definitive statement on the existence of natural supersymmetry.},
doi = {10.1103/PhysRevD.91.055002},
journal = {Physical Review. D, Particles, Fields, Gravitation and Cosmology},
number = 5,
volume = 91,
place = {United States},
year = {Sun Mar 01 00:00:00 EST 2015},
month = {Sun Mar 01 00:00:00 EST 2015}
}