Perego, M. M. (2015) Search for Dark Matter direct production in the monophoton plus missing transverse momentum final state in pp collisions at √s = 8TeV with the ATLAS detector. Il nuovo cimento C, 38 (2). pp. 1-11. ISSN 1826-9885
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Abstract
This paper presents a search for dark matter pair production in association with an energetic photon in 20.3 fb−1 of pp collisions collected at √s = 8TeV by the ATLAS detector at the LHC. The final state investigated in this analysis is defined by large missing transverse momentum (EmissT > 150GeV) and by the presence of an energetic photon (pT > 125 GeV). Observations in data are compared to the Standard Model expectations and no significant excess is found. A modelindependent limit is set on the presence of new physics in data. Data are also interpreted in the framework of effective field theories which describe the interaction between dark matter and incoming partons as a contact interaction parameterized by a set of dimensional operators.
| Item Type: | Article |
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| Uncontrolled Keywords: | Photons ; Dark matter (stellar, interstellar, galactic, and cosmological) |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 27 May 2020 15:31 |
| Last Modified: | 27 May 2020 15:31 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/19037 |
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