We report a new search for dark matter in a data sample of an integrated luminosity of 7.7  fb-1 of Tevatron pp̅ collisions at √s=1.96  TeV, collected by the CDF II detector. We search for production of a dark-matter candidate, D, in association with a single top quark. We consider the hadronic decay mode of the top quark exclusively, yielding a final state of three jets with missing transverse energy. The data are consistent with the standard model; we thus set 95% confidence level upper limits on the cross section of the process pp̅ →t+D as a function of the mass of the dark-matter candidate. The limits are approximately 0.5 pb for a dark-matter particle with mass in the range of 0–150  GeV/c2.

T. AALTONEN, B. ÁLVAREZ GONZÁLEZ, S. AMERIO, D. AMIDEI, A. ANASTASSOV, A. ANNOVI, et al. (2012). Search for a Dark Matter Candidate Produced in Association with a Single Top Quark in pp̅ Collisions at √s=1.96  TeV. PHYSICAL REVIEW LETTERS, 108, 201802-1-201802-7 [10.1103/PhysRevLett.108.201802].

Search for a Dark Matter Candidate Produced in Association with a Single Top Quark in pp̅ Collisions at √s=1.96  TeV

BRIGLIADORI, LUCA;CASTRO, ANDREA;DENINNO, MARIA MADDALENA;MAZZANTI, PAOLO;MOGGI, NICCOLO';MUSSINI, MANUEL;RIMONDI, FRANCO;ZUCCHELLI, STEFANO
2012

Abstract

We report a new search for dark matter in a data sample of an integrated luminosity of 7.7  fb-1 of Tevatron pp̅ collisions at √s=1.96  TeV, collected by the CDF II detector. We search for production of a dark-matter candidate, D, in association with a single top quark. We consider the hadronic decay mode of the top quark exclusively, yielding a final state of three jets with missing transverse energy. The data are consistent with the standard model; we thus set 95% confidence level upper limits on the cross section of the process pp̅ →t+D as a function of the mass of the dark-matter candidate. The limits are approximately 0.5 pb for a dark-matter particle with mass in the range of 0–150  GeV/c2.
2012
T. AALTONEN, B. ÁLVAREZ GONZÁLEZ, S. AMERIO, D. AMIDEI, A. ANASTASSOV, A. ANNOVI, et al. (2012). Search for a Dark Matter Candidate Produced in Association with a Single Top Quark in pp̅ Collisions at √s=1.96  TeV. PHYSICAL REVIEW LETTERS, 108, 201802-1-201802-7 [10.1103/PhysRevLett.108.201802].
T. AALTONEN; B. ÁLVAREZ GONZÁLEZ; S. AMERIO; D. AMIDEI; A. ANASTASSOV; A. ANNOVI; J. ANTOS; G. APOLLINARI; J. APPEL; T. ARISAWA; A. ARTIKOV; J. ASAADI...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/122824
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