Search for new physics in final states with a single photon and missing transverse momentum in proton-proton collisions at √s=13 TeV

Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Asilar, Ece and Md. Ali, Mohd. Adli (2019) Search for new physics in final states with a single photon and missing transverse momentum in proton-proton collisions at √s=13 TeV. Journal of High Energy Physics, 2019 (2). pp. 1-47. ISSN 1126-6708 E-ISSN 1029-8479

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Abstract

A search is conducted for new physics in final states containing a photon and missing transverse momentum in proton-proton collisions at √ s = 13 TeV, using the data collected in 2016 by the CMS experiment at the LHC, corresponding to an integrated luminosity of 35.9 fb−1 . No deviations from the predictions of the standard model are observed. The results are interpreted in the context of dark matter production and models containing extra spatial dimensions, and limits on new physics parameters are calculated at 95% confidence level. For the two simplified dark matter production models considered, the observed (expected) lower limits on the mediator masses are both 950 (1150) GeV for 1 GeV dark matter mass. For an effective electroweak-dark matter contact interaction, the observed (expected) lower limit on the suppression parameter Λ is 850 (950) GeV. Values of the effective Planck scale up to 2.85–2.90 TeV are excluded for between 3 and 6 extra spatial dimensions.

Item Type:	Article (Journal)
Additional Information:	7861/71785
Uncontrolled Keywords:	Beyond Standard Model, Dark matter, Hadron-Hadron scattering (experiments)
Subjects:	Q Science > Q Science (General) Q Science > QC Physics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science Kulliyyah of Science > Department of Physics
Depositing User:	Dr Mohd Adli MD Ali
Date Deposited:	24 Apr 2019 16:41
Last Modified:	12 Jul 2019 10:32
URI:	http://irep.iium.edu.my/id/eprint/71785

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