Počet záznamů: 1

Search for pair production of first-generation leptoquarks in p anti-p collisions at s**(1/2) = 1.96-TeV

  1. 1.
    0339004 - FZU-D 2010 RIV NL eng J - Článek v odborném periodiku
    Abazov, V. M. - Abbott, B. - Abolins, M. - Kupčo, Alexander - Lokajíček, Miloš
    Search for pair production of first-generation leptoquarks in p anti-p collisions at s**(1/2) = 1.96-TeV.
    Physics Letters. B. Roč. 681, č. 3 (2009), s. 224-232 ISSN 0370-2693
    Grant CEP: GA MŠk LC527; GA MŠk LA08047
    Výzkumný záměr: CEZ:AV0Z10100502
    Klíčová slova: D0 * collisions * leptokvarky
    Kód oboru RIV: BF - Elementární částice a fyzika vys. energií
    Impakt faktor: 5.083, rok: 2009
    http://arxiv.org/abs/0907.1048

    A search for pair production of first-generation leptoquarks LQ is performed with data collected by the D0 experiment in p pbar collisions at sqrt(s)=1.96 TeV at the Fermilab Tevatron Collider. In a sample of data corresponding to ~1 fb-1, the search has been performed on the final states with two electrons and two jets or one electron, two jets and missing transverse energy. We find our data consistent with standard model expectations. The results are combined with those found in a previous analysis of events with two jets and missing transverse energy to obtain scalar LQ mass limits. We set 95% C.L. lower limits on a scalar LQ mass of 299 GeV, 284 GeV and 216 GeV for beta=1, beta=0.5 and beta=0.02 respectively, where beta is the LQ branching ratio in the eq channel.
    Trvalý link: http://hdl.handle.net/11104/0182638