Search for physics beyond the standard model in high-mass diphoton events from proton-proton collisions at s =13 TeV

(CMS Collaboration)

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A search for physics beyond the standard model is performed using a sample of high-mass diphoton events produced in proton-proton collisions at s=13 TeV. The data sample was collected in 2016 with the CMS detector at the LHC and corresponds to an integrated luminosity of 35.9 fb-1. The search is performed for both resonant and nonresonant new physics signatures. At 95% confidence level, lower limits on the mass of the first Kaluza-Klein excitation of the graviton in the Randall-Sundrum warped extra-dimensional model are determined to be in the range of 2.3 to 4.6 TeV, for values of the associated coupling parameter between 0.01 and 0.2. Lower limits on the production of scalar resonances and model-independent cross section upper limits are also provided. For the large extra-dimensional model of Arkani-Hamed, Dimopoulos, and Dvali, lower limits are set on the string mass scale MS ranging from 5.6 to 9.7 TeV, depending on the model parameters. The first exclusion limits are set in the two-dimensional parameter space of a continuum clockwork model.

Original languageEnglish
Article number092001
JournalPhysical Review D
Volume98
Issue number9
DOIs
Publication statusPublished - 1 Nov 2018

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physics
collisions
protons
gravitons
exclusion
confidence
strings
luminosity
signatures
scalars
continuums
detectors
cross sections
excitation

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Search for physics beyond the standard model in high-mass diphoton events from proton-proton collisions at s =13 TeV. / (CMS Collaboration).

In: Physical Review D, Vol. 98, No. 9, 092001, 01.11.2018.

Research output: Contribution to journalArticle

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abstract = "A search for physics beyond the standard model is performed using a sample of high-mass diphoton events produced in proton-proton collisions at s=13 TeV. The data sample was collected in 2016 with the CMS detector at the LHC and corresponds to an integrated luminosity of 35.9 fb-1. The search is performed for both resonant and nonresonant new physics signatures. At 95{\%} confidence level, lower limits on the mass of the first Kaluza-Klein excitation of the graviton in the Randall-Sundrum warped extra-dimensional model are determined to be in the range of 2.3 to 4.6 TeV, for values of the associated coupling parameter between 0.01 and 0.2. Lower limits on the production of scalar resonances and model-independent cross section upper limits are also provided. For the large extra-dimensional model of Arkani-Hamed, Dimopoulos, and Dvali, lower limits are set on the string mass scale MS ranging from 5.6 to 9.7 TeV, depending on the model parameters. The first exclusion limits are set in the two-dimensional parameter space of a continuum clockwork model.",
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