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Search for direct pair production of scalar top quarks in the single- and dilepton channels in proton-proton collisions at ?s= 8 Te

Abstract: Results: are reported from a search for the top squark t ? 1, the lighter of the two supersymmetric partners of the top quark. The data sample corresponds to 19.7 fb?1 of proton-proton collisions at s=8 TeV collected with the CMS detector at the LHC. The search targets t?1?b??1± and t?1?t(?)??10 decay modes, where ??1± and ??10 are the lightest chargino and neutralino, respectively. The reconstructed final state consists of jets, b jets, missing transverse energy, and either one or two leptons. Leading backgrounds are determined from data. No significant excess in data is observed above the expectation from standard model processes. The results exclude a region of the two-dimensional plane of possible t ? 1 and ??10 masses. The highest excluded t ? 1 and ??10 masses are about 700 GeV and 250 GeV, respectively.

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

 Fuente: Journal of High Energy Physics, Vol. 2016, Num. 7, Art. Num. 27

Editorial: Springer Verlag

 Fecha de publicación: 01/07/2016

Nº de páginas: 49

Tipo de publicación: Artículo de Revista

 DOI: 10.1007/JHEP07(2016)027

ISSN: 1126-6708,1029-8479

Url de la publicación: https://doi.org/10.1007/JHEP07(2016)027

Autores/as

KHACHATRYAN, VLADIMIR

JUAN RAMON CASTIÑEIRAS DE SAA

PABLO DE CASTRO MANZANO

JUAN GARCIA FERRERO

MARIA AMPARO LOPEZ VIRTO

RAFAEL JOSE MARCO DE LUCAS

ANA YAIZA RODRIGUEZ MARRERO