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Evidence for associated production of a single top quark and W Boson in pp collisions at vs=7 TeV

Abstract: ABSTRACT: Evidence is presented for the associated production of a single top quark and W boson in pp collisions at ?s=7??TeV with the CMS experiment at the LHC. The analyzed data correspond to an integrated luminosity of 4.9??fb?1. The measurement is performed using events with two leptons and a jet originated from a b quark. A multivariate analysis based on kinematic properties is utilized to separate the t¯t background from the signal. The observed signal has a significance of 4.0? and corresponds to a cross section of 16+5?4??pb, in agreement with the standard model expectation of 15.6±0.4+1.0?1.2??pb.

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 Autoría: Chatrchyan S., Khachatryan V., Sirunyan A.M., Tumasyan A., Adam W., Aguilo E., Bergauer T., Dragicevic M., Erö J., Fabjan C., Friedl M., Frühwirth R., Ghete V.M., Hammer J., Hörmann N., Hrubec J., Jeitler M., Kiesenhofer W., Knünz V., Krammer M., Krätschmer I., Liko D., Mikulec I., Pernicka M., Rahbaran B., Rohringer C., Rohringer H., Schöfbeck R., Strauss J., Taurok A., Waltenberger W., Walzel G., Widl E., Wulz C.E., Mossolov V

 Fuente: Physical Review Letters, 2013, 110(2), 022003

Editorial: American Physical Society

 Fecha de publicación: 11/01/2013

Nº de páginas: 16

Tipo de publicación: Artículo de Revista

 DOI: 10.1103/PhysRevLett.110.022003

ISSN: 0031-9007,1079-7114

Url de la publicación: https:/doi.org/10.1103/PhysRevLett.110.022003