0379888 - FZÚ 2013 RIV NL eng J - Journal Article
Abazov, V. M. - Abbott, B. - Acharya, B.S. - Kupčo, Alexander - Lokajíček, Miloš … Total 409 authors
Search for pair production of the scalar top quark in muon+tau final states.
Physics Letters. B. Roč. 710, 4-5 (2012), s. 578-586. ISSN 0370-2693. E-ISSN 1873-2445
R&D Projects: GA MŠMT LA08047
Institutional research plan: CEZ:AV0Z10100502
Keywords : D0 * anti-p p interaction * muon tau final state * stop pair production
Subject RIV: BF - Elementary Particles and High Energy Physics
Impact factor: 4.569, year: 2012 ; AIS: 1.494, rok: 2012
Result website:
http://www.sciencedirect.com/science/article/pii/S0370269312003024DOI: https://doi.org/10.1016/j.physletb.2012.03.028

We present a search for the pair production of scalar top quarks (t˜1), the lightest supersymmetric partners of the top quarks, in ppˉ collisions at a center-of-mass energy of 1.96 TeV, using data corresponding to an integrated luminosity of {7.3 fb−1} collected with the /dzero experiment at the Fermilab Tevatron Collider. Each scalar top quark is assumed to decay into a b quark, a charged lepton, and a scalar neutrino (ν˜). We investigate final states arising from t˜1t˜1ˉ→bbˉμτν˜ν˜ and t˜1t˜1ˉ→bbˉττν˜ν˜. With no significant excess of events observed above the background expected from the standard model, we set exclusion limits on this production process in the (mt˜1,mν˜) plane.
Permanent Link: http://hdl.handle.net/11104/0210745