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Searches for new physics using the tt- invariant mass distribution in pp collisions at root s=8 TeV

Abstract: Searches for anomalous top quark-antiquark production are presented, based on pp collisions at root s = 8 TeV. The data, corresponding to an integrated luminosity of 19:7 fb-1, were collected with the CMS detector at the LHC. The observed tt- invariant mass spectrum is found to be compatible with the standard model prediction. Limits on the production cross section times branching fraction probe, for the first time, a region of parameter space for certain models of new physics not yet constrained by precision measurements.

Other publications of the same journal or congress with authors from the University of Cantabria

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., Hörmann N., Hrubec J., Jeitler M., Kiesenhofer W., Knünz V., Krammer M., Krätschmer I., Liko D., Mikulec I., Rabady D., Rahbaran B., Rohringer C., Rohringer H., Schöfbeck R., Strauss J., Taurok A., Treberer-Treberspurg W., Waltenberger W., Wulz C.E., Mossolov V., Shumeiko N., Suare

Fuente: Physical Review Letters, 2013, 111, 211804 - (ERRATUM) 2014, 112, 119903

Publisher: American Physical Society

Publication date: 23/11/2013

No. of pages: 16

Publication type: Article

DOI: 10.1103/PhysRevLett.111.211804

ISSN: 0031-9007,1079-7114

Publication Url: https://doi.org/10.1103/PhysRevLett.111.211804

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