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Search for new physics in events with same-sign dileptons and b-tagged jets in pp collisions at v s = 7TeV

Abstract: A search for new physics is performed using isolated same-sign dileptons with at least two b-quark jets in the final state. Results are based on a 4.98 fb?1 sample of protonproton collisions at a centre-of-mass energy of 7 TeV collected by the CMS detector. No excess above the standard model background is observed. Upper limits at 95% confidence level are set on the number of events from non-standard-model sources. These limits are used to set constraints on a number of new physics models. Information on acceptance and efficiencies are also provided so that the results can be used to confront additional models in an approximate way.

Authorship: Chatrchyan S., 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., Hörmann N., Hrubec J., Jeitler M., Kiesenhofer W., Knünz V., Krammer M., Liko D., Mikulec I., Pernicka M., Rahbaran B., Rohringer C., Rohringer H., Schöfbeck R., Strauss J., Taurok A., Wagner P., Waltenberger W., Walzel G., Widl E., Wulz C.E., Mossolov V., Shumeiko N.,

Fuente: Journal of High Energy Physics, 2012, 2012(8), 110

Publisher: Springer Verlag

Publication date: 01/08/2012

No. of pages: 36

Publication type: Article

DOI: 10.1007/JHEP08(2012)110

ISSN: 1126-6708,1029-8479

Publication Url: https://doi.org/10.1007/JHEP08(2012)110

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