Abstract
Mono-jet and mono-photon signatures are final states in a variety of scenarios beyond the Standard Model, such as the Large Extra Dimension models, gauge-mediated SUSY breaking scenarios, and models with pair production of Weakly Interacting Massive Particles considered as dark matter candidates. The produced exotic particles do not interact with the detector, resulting in missing transverse energy. The results of searches, performed in the ATLAS experiment at the LHC, for new physics in final states with an energetic jet or photon and large missing transverse energy are presented. The mono-jet search is performed using both 4.6 fb −1 of 7 TeV and 10.5 fb −1 of 8 TeV data, while the mono-photon results correspond to 4.6 fb −1 of 7 TeV data.
Highlights
Event topologies with one high transverse momentum 1 pT jet or photon and large missing transverse energy are important final states for searches for new phenomena beyond the Standard Model (BSM) at the LHC
Mono-jet and mono- photon signatures are fi nal states in a variety of scenarios beyond the Standard Model, such as the Large Extra Dimension models, gauge-mediated SUSY breaking scenarios, and models with pair production of Weakly Interacting Massive Particles considered as dark matter candidates
The BSM scenarios resulting in such final states include supersymmetry [1,2,3], Large Extra Dimensions (LED) scenarios [4, 5], and a general model for production of dark-matter weakly interacting massive particles (WIMP) [6]
Summary
Event topologies with one high transverse momentum 1 pT jet or photon and large missing transverse energy are important final states for searches for new phenomena beyond the Standard Model (BSM) at the LHC. The BSM scenarios resulting in such final states include supersymmetry [1,2,3], Large Extra Dimensions (LED) scenarios [4, 5], and a general model for production of dark-matter weakly interacting massive particles (WIMP) [6]. In case the experimental studies of mono-jet and mono-photon events are consistent with Standard Model expectations, constraints will be set on the production of light gravitinos in association with gluinos or scalar quarks in the gauge-mediated SUSY breaking GMSB SUSY scenarios, the Planck scale of the LED model of Arkani-Hamed, Dimopoulos, Dvali (ADD), and the suppression scale in the pair production of WIMPs
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