Search for W-Associated Production of Single Top Quarks in CMS

The production of single top quarks at the LHC provides a unique window onto the measurement of the CKM matrix element IV_tbI without assuming 3~generation unitarity. The W-associated production of single top is a challenging channel due to the large overlap in phase space with t bar t production. W...

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Detalles Bibliográficos
Autores principales: Yeh, Ping, Blyth, Simon, Chao, Yuan, Chen, Kai-Feng, Giammanco, Andrea, Lei, Yeong-Jyi, Petrucciani, Giovanni, Schümann, Jan, Shiu, Jing-Ge
Lenguaje:eng
Publicado: 2006
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/986346
Descripción
Sumario:The production of single top quarks at the LHC provides a unique window onto the measurement of the CKM matrix element IV_tbI without assuming 3~generation unitarity. The W-associated production of single top is a challenging channel due to the large overlap in phase space with t bar t production. We have developed a ratio method to reduce the systematic uncertainties in the presence of large t bar t backgrounds. The expected uncertainties and significance for a 60~pb pp to tW production cross section with 10 fb^-1 of CMS data are presented.

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