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Title: Search for long-lived particles using delayed photons in proton-proton collisions at $$\sqrt{s}=$$ 13 TeV

Abstract

A search for long-lived particles decaying to photons and weakly interacting particles, using proton-proton collision data at $$\sqrt{s}=$$ 13 TeV collected by the CMS experiment in 2016-2017 is presented. The data set corresponds to an integrated luminosity of 77.4 fb$$^{-1}$$. Results are interpreted in the context of supersymmetry with gauge-mediated supersymmetry breaking, where the neutralino is long-lived and decays to a photon and a gravitino. Limits are presented as a function of the neutralino proper decay length and mass. For neutralino proper decay lengths of 0.1, 1, 10, and 100 m, masses up to 320, 525, 360, and 215 GeV are excluded at 95% confidence level, respectively. We extend the previous best limits in the neutralino proper decay length by up to one order of magnitude, and in the neutralino mass by up to 100 GeV.

Authors:
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Org.:
CMS
OSTI Identifier:
1568850
Report Number(s):
FERMILAB-PUB-19-498-CMS; arXiv:1909.06166; CMS-EXO-19-005; CERN-EP-2019-185
oai:inspirehep.net:1754075
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Journal Article
Journal Name:
TBD
Additional Journal Information:
Journal Name: TBD
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Sirunyan, Albert M, and et al. Search for long-lived particles using delayed photons in proton-proton collisions at $\sqrt{s}=$ 13 TeV. United States: N. p., 2019. Web.
Sirunyan, Albert M, & et al. Search for long-lived particles using delayed photons in proton-proton collisions at $\sqrt{s}=$ 13 TeV. United States.
Sirunyan, Albert M, and et al. Fri . "Search for long-lived particles using delayed photons in proton-proton collisions at $\sqrt{s}=$ 13 TeV". United States. https://www.osti.gov/servlets/purl/1568850.
@article{osti_1568850,
title = {Search for long-lived particles using delayed photons in proton-proton collisions at $\sqrt{s}=$ 13 TeV},
author = {Sirunyan, Albert M and et al.},
abstractNote = {A search for long-lived particles decaying to photons and weakly interacting particles, using proton-proton collision data at $\sqrt{s}=$ 13 TeV collected by the CMS experiment in 2016-2017 is presented. The data set corresponds to an integrated luminosity of 77.4 fb$^{-1}$. Results are interpreted in the context of supersymmetry with gauge-mediated supersymmetry breaking, where the neutralino is long-lived and decays to a photon and a gravitino. Limits are presented as a function of the neutralino proper decay length and mass. For neutralino proper decay lengths of 0.1, 1, 10, and 100 m, masses up to 320, 525, 360, and 215 GeV are excluded at 95% confidence level, respectively. We extend the previous best limits in the neutralino proper decay length by up to one order of magnitude, and in the neutralino mass by up to 100 GeV.},
doi = {},
journal = {TBD},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {9}
}