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First measurement of the cross section for top-quark pair production in proton-proton collisions at vs=7 TeV

Abstract: The first measurement of the cross section for top-quark pair production in pp collisions at the Large Hadron Collider at center-of-mass energy ?s = 7 TeV has been performed using a data sample corresponding to an integrated luminosity of 3.1 ± 0.3 pb?1 recorded by the CMS detector. This result utilizes the final state with two isolated, highly energetic charged leptons, large missing transverse energy, and two or more jets. Backgrounds from Drell?Yan and non-W/Z boson production are estimated from data. Eleven events are observed in the data with 2.1 ± 1.0 events expected from background. The measured cross section is 194 ± 72(stat.) ± 24(syst.) ± 21(lumi.) pb, consistent with next-to-leading order predictions

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Autoría: Khachatryan V., Sirunyan A.M., Tumasyan A., Adam W., Bergauer T., Dragicevic M., Erö J., Fabjan C., Friedl M., Frühwirth R., Ghete V.M., Hammer J., Hänsel S., Hartl C., Hoch M., Hörmann N., Hrubec J., Jeitler M., Kasieczka G., Kiesenhofer W., Krammer M., Liko D., Mikulec I., Pernicka M., Rohringer H., Schöfbeck R., Strauss J., Taurok A., Teischinger F., Waltenberger W., Walzel G., Widl E., Wulz C.E., Mossolov V., Shumeiko N.,

 Fuente: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2011, 695(5), 424-443

Editorial: Elsevier

 Fecha de publicación: 01/01/2011

Nº de páginas: 20

Tipo de publicación: Artículo de Revista

 DOI: 10.1016/j.physletb.2010.11.058

ISSN: 0370-2693,1873-2445

Url de la publicación: https://doi.org/10.1016/j.physletb.2010.11.058

Autoría

MARIA CHAMIZO LLATAS

SHANHUEI CHUANG

MARTA FELCINI

MARCOS FERNANDEZ GARCIA

REBECA GONZALEZ SUAREZ

CLARA JORDA LOPE

PATRICIA LOBELLE PARDO

MARIA AMPARO LOPEZ VIRTO

RAFAEL JOSE MARCO DE LUCAS

MARIA DEL MAR SOBRON SAÑUDO