Search for the lightest scalar top quark in events with two leptons in pp¯ collisions at s=1.96 TeV

Search for the lightest scalar top quark in events with two leptons in pp¯ collisions at s=1.96 TeV

Data collected by the D0 detector at a pp¯ center-of-mass energy of 1.96 TeV at the Fermilab Tevatron Collider have been used to search for pair production of the lightest supersymmetric partner of the top quark decaying into bℓν˜. The search is performed in the ℓℓ′=eμ and μμ final states. No eviden...

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Veröffentlicht in:Physics letters. B 2008-01, Vol.659 (3), p.500-508
Hauptverfasser: Adams, M., Aguilo, E., Alkhazov, G., Alverson, G., Arthaud, M., Bagby, L., Banerjee, P., Barberis, E., Barfuss, A.-F., Bean, A., Begalli, M., Belanger-Champagne, C., Bernhard, R., Bloch, D., Borissov, G., Buehler, M., Buszello, C.P., Cason, N.M., Chakrabarti, S., Chan, K., Christoudias, T., Couderc, F., Cousinou, M.-C., de Jong, P., Déliot, F., Desai, S., Duperrin, A., Dyshkant, A., Filthaut, F., Gadfort, T., Garcia-Bellido, A., Gerber, C.E., Gollub, N., Gómez, B., Goussiou, A., Grenier, G., Grivaz, J.-F., Grohsjean, A., Guo, F., Hall, I., Han, L., Herner, K., Hoeneisen, B., Hoeth, H., Houben, P., Hynek, V., Jarvis, C., Kalk, J.R., Katsanos, I., Kaushik, V., Kehoe, R., Kopal, M., Krop, D., Kurča, T., Lincoln, D., Lipaev, V.V., Mal, P.K., Malbouisson, H.B., McCarthy, R., Melnitchouk, A., Meyer, J., Mommsen, R.K., Moore, R.W., Mulders, M., Mundim, L., Nagy, E., Nunnemann, T., O'Neil, D.C., Park, S.-J., Parsons, J., Patwa, A., Peters, Y., Pétroff, P., Podstavkov, V.M., Quadt, A., Reucroft, S., Safronov, G., Savage, G., Schellman, H., Schliephake, T., Sekaric, J., Sonnenschein, L., Soustruznik, K., Strandberg, S., Ströhmer, R., Svoisky, P., Sznajder, A., Torchiani, I., Unalan, R., Vertogradov, L.S., Weber, G., Wenger, A., Wilson, G.W., Wobisch, M., Wyatt, T.R., Xie, Y., Yatsunenko, Y.A., Yoo, H.D., Yu, J., Zieminski, A.
Format: Artikel
Sprache:eng
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Exact sciences and technology
Nuclear physics
Physics
The physics of elementary particles and fields
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Zusammenfassung:Data collected by the D0 detector at a pp¯ center-of-mass energy of 1.96 TeV at the Fermilab Tevatron Collider have been used to search for pair production of the lightest supersymmetric partner of the top quark decaying into bℓν˜. The search is performed in the ℓℓ′=eμ and μμ final states. No evidence for this process has been found in data samples of approximately 400 pb−1. The domain in the [M(t˜1),M(ν˜)] plane excluded at the 95% C.L. is substantially extended by this search.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2007.11.086