Search for New Phenomena in Events with a Photon and Missing Transverse Momentum in PP Collisions at √s = 8 TeV with the ATLAS Detector
Date
2015-01-27
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Publisher
American Physical Society
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Abstract
Results of a search for new phenomena in events with an energetic photon and large missing transverse momentum with the ATLAS experiment at the LHC are reported. Data were collected in proton-proton collisions at a center-of-mass energy of 8 TeV and correspond to an integrated luminosity of 20.3 fb⁻¹. The observed data are well described by the expected Standard Model backgrounds. The expected (observed) upper limit on the fiducial cross section for the production of events with a photon and large missing transverse momentum is 6.1 (5.3) fb at 95% confidence level. Exclusion limits are presented on models of new phenomena with large extra spatial dimensions, supersymmetric quarks, and direct pair production of dark-matter candidates.
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Keywords
Standard model (Nuclear physics), Photons, Jets (Nuclear physics), Momentum (Physics), Proton-proton interactions
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CC BY 3.0 (Attribution), ©2015 CERN, for the ATLAS Collaboration