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

Author
Sirunyan A.M. Yerevan Physics Institute, Armenia
Finger Miroslav, prof. Ing. DrSc. Faculty of Mathematics and Physics, Charles University in Prague
Finger Michael, M.Sc. CSc. Faculty of Mathematics and Physics, Charles University in Prague, JINR Dubna
Afanasjev , Dr. JINR
et al.  different institutions

Year
2019

Scientific journal
JOURNAL OF HIGH ENERGY PHYSICS 2 074

Web


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 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.

Cite article as:
A. Sirunyan, M. Finger, M. Finger, . Afanasjev, . et al., "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 2 074 (2019)