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Search for top squarks in r-parity-violating supersymmetry using three or more leptons and b-tagged jets

Abstract: A search for anomalous production of events with three or more isolated leptons and bottom-quark jets produced in pp collisions at ?s=8 TeV is presented. The analysis is based on a data sample corresponding to an integrated luminosity of 19.5 fb-1 collected by the CMS experiment at the LHC in 2012. No excess above the standard model expectations is observed. The results are interpreted in the context of supersymmetric models with signatures that have low missing transverse energy arising from light top-squark pair production with R-parity-violating decays of the lightest supersymmetric particle. In two models with different R-parity-violating couplings, top squarks are excluded below masses of 1020 GeV and 820 GeV when the lightest supersymmetric particle has a mass of 200 GeV.

 Autoría: 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, 221801

 Editorial: American Physical Society

 Fecha de publicación: 25/11/2013

 Nº de páginas: 16

 Tipo de publicación: Artículo de Revista

 DOI: 10.1103/PhysRevLett.111.221801

 ISSN: 0031-9007,1079-7114

 Url de la publicación: https://doi.org/10.1103/PhysRevLett.111.221801

Autoría

CHATRCHYAN, SERGUEI

JAVIER ANDRES BROCHERO CIFUENTES

SHANHUEI CHUANG

MARCOS FERNANDEZ GARCIA

CLARA JORDA LOPE

MARIA AMPARO LOPEZ VIRTO

RAFAEL JOSE MARCO DE LUCAS

FRANCISCA JAVIELA MUÑOZ SANCHEZ

ANA YAIZA RODRIGUEZ MARRERO