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Title: Search for high-mass diphoton resonances in proton-proton collisions at 13 TeV and combination with 8 TeV search

Abstract

A search for the resonant production of high-mass photon pairs is presented. The search focuses on spin-0 and spin-2 resonances with masses between 0.5 and 4.5 TeV, and with widths, relative to the mass, between 1.4 ×10 -4 and 5.6 ×10 -2. The data sample corresponds to an integrated luminosity of 12.9 fb -1 of proton–proton collisions collected with the CMS detector in 2016 at a center-of-mass energy of 13TeV. No significant excess is observed relative to the standard model expectation. The results of the search are combined statistically with those previously obtained in 2012 and 2015 at $$\sqrt{s}$$ = 8 and 13 TeV, respectively, corresponding to integrated luminosities of 19.7 and 3.3 fb -1, to derive exclusion limits on scalar resonances produced through gluon-gluon fusion, and on Randall-Sundrum gravitons. The lower mass limits for Randall-Sundrum gravitons range from 1.95 to 4.45 TeV for coupling parameters between 0.01 and 0.2. These are the most stringent limits on Randall-Sundrum graviton production to date.

Authors:
 [1]
  1. et al.
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Org.:
CMS Collaboration
OSTI Identifier:
1343166
Alternate Identifier(s):
OSTI ID: 1335120; OSTI ID: 1395326
Report Number(s):
FERMILAB-PUB-16-375-CMS; CMS-EXO-16-027; CERN-EP-2016-216; arXiv:1609.02507; CMS-EXO-16-02
Journal ID: ISSN 0370-2693; 1485702
Grant/Contract Number:  
AC02-07CH11359; AC52-07NA27344
Resource Type:
Journal Article: Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 767; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CMSextra dimensions; Randall–Sundrum; Heavy resonance; Spin-0; Diphoton

Citation Formats

Khachatryan, Vardan. Search for high-mass diphoton resonances in proton-proton collisions at 13 TeV and combination with 8 TeV search. United States: N. p., 2017. Web. doi:10.1016/j.physletb.2017.01.027.
Khachatryan, Vardan. Search for high-mass diphoton resonances in proton-proton collisions at 13 TeV and combination with 8 TeV search. United States. doi:10.1016/j.physletb.2017.01.027.
Khachatryan, Vardan. Thu . "Search for high-mass diphoton resonances in proton-proton collisions at 13 TeV and combination with 8 TeV search". United States. doi:10.1016/j.physletb.2017.01.027.
@article{osti_1343166,
title = {Search for high-mass diphoton resonances in proton-proton collisions at 13 TeV and combination with 8 TeV search},
author = {Khachatryan, Vardan},
abstractNote = {A search for the resonant production of high-mass photon pairs is presented. The search focuses on spin-0 and spin-2 resonances with masses between 0.5 and 4.5 TeV, and with widths, relative to the mass, between 1.4 ×10-4 and 5.6 ×10-2. The data sample corresponds to an integrated luminosity of 12.9 fb-1 of proton–proton collisions collected with the CMS detector in 2016 at a center-of-mass energy of 13TeV. No significant excess is observed relative to the standard model expectation. The results of the search are combined statistically with those previously obtained in 2012 and 2015 at $\sqrt{s}$ = 8 and 13 TeV, respectively, corresponding to integrated luminosities of 19.7 and 3.3 fb-1, to derive exclusion limits on scalar resonances produced through gluon-gluon fusion, and on Randall-Sundrum gravitons. The lower mass limits for Randall-Sundrum gravitons range from 1.95 to 4.45 TeV for coupling parameters between 0.01 and 0.2. These are the most stringent limits on Randall-Sundrum graviton production to date.},
doi = {10.1016/j.physletb.2017.01.027},
journal = {Physics Letters. Section B},
number = ,
volume = 767,
place = {United States},
year = {Thu Jan 19 00:00:00 EST 2017},
month = {Thu Jan 19 00:00:00 EST 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1016/j.physletb.2017.01.027

Citation Metrics:
Cited by: 41 works
Citation information provided by
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