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  • Search for scalar top quark...
    Adams, M.; Aguilo, E.; Alkhazov, G.; Alverson, G.; Andrieu, B.; Arnoud, Y.; Bagby, L.; Banerjee, S.; Barberis, E.; Bassler, U.; Bean, A.; Begalli, M.; Begel, M.; Belanger-Champagne, C.; Bernhard, R.; Beuselinck, R.; Blazey, G.; Bloch, D.; Boehnlein, A.; Borissov, G.; Buchholz, D.; Calvet, S.; Carvalho, W.; Castilla-Valdez, H.; Chakrabarti, S.; Chan, K.M.; Choudhary, B.; Coadou, Y.; Cooper, W.E.; Corcoran, M.; de Jong, S.J.; Demina, R.; Ellison, J.; Elvira, V.D.; Ermolov, P.; Evdokimov, V.N.; Fiedler, F.; Fu, S.; Greenwood, Z.D.; Gregores, E.M.; Grohsjean, A.; Hall, R.E.; Hedin, D.; Heinson, A.P.; Heintz, U.; Hong, S.J.; Hynek, V.; Illingworth, R.; Johns, K.; Jonsson, P.; Juste, A.; Karmanov, D.; Kaushik, V.; Kraus, J.; Kvita, J.; Lellouch, J.; Lincoln, D.; Lipton, R.; Malbouisson, H.B.; Malyshev, V.L.; Maravin, Y.; Mercadante, P.G.; Naimuddin, M.; Narain, M.; Naumann, N.A.; Obrant, G.; Parua, N.; Peters, K.; Pleier, M.-A.; Pogorelov, Y.; Polozov, P.; Pope, B.G.; Protopopescu, S.; Quadt, A.; Ripp-Baudot, I.; Rizatdinova, F.; Sajot, G.; Schliephake, T.; Schwanenberger, C.; Sonnenschein, L.; Sosebee, M.; Spurlock, B.; Stoyanova, D.A.; Ströhmer, R.; Sumowidagdo, S.; Sznajder, A.; Tanasijczuk, A.; Tokmenin, V.V.; Varnes, E.W.; Vasilyev, I.A.; Vertogradov, L.S.; Warchol, J.; Watts, G.; Weber, M.; White, A.; Wilson, G.W.; Wobisch, M.; Zatserklyaniy, A.; Zieminski, A.; Zverev, E.G.

    Physics letters. B, 07/2008, Letnik: 665, Številka: 1
    Journal Article

    We present a search for the pair production of scalar top quarks, t˜, using 995 pb−1 of data collected in pp¯ collisions with the DØ detector at the Fermilab Tevatron Collider at s=1.96TeV. Both scalar top quarks are assumed to decay into a charm quark and a neutralino (χ˜10), where χ˜10 is the lightest supersymmetric particle. This leads to a final state with two acoplanar charm jets and missing transverse energy. We find the yield of such events to be consistent with the standard model expectation, and exclude sets of t˜ and χ˜10 masses at the 95% C.L. that substantially extend the domain excluded by previous searches.