Mañana, JUEVES, 24 DE ABRIL, el sistema se apagará debido a tareas habituales de mantenimiento a partir de las 9 de la mañana. Lamentamos las molestias.
Measurement of the single-top-quark t-channel cross section in pp collisions at √s = 7 TeV
Entity
UAM. Departamento de Física TeóricaPublisher
SISSA 2012; Springer VerlagDate
2012-12-07Citation
10.1007/JHEP12(2012)035
Journal of High Energy Physics 2012.12 (2012): 035
ISSN
1029-8479 (online); 1126-6708 (print)DOI
10.1007/JHEP12(2012)035Editor's Version
http://dx.doi.org/10.1007/JHEP12(2012)035Subjects
Hadron-hadron scattering; FísicaNote
Journal of High Energy Physics 2012.12 (2012): 035 reproduced by permission of Scuola Internazionale Superiore di Studi Avanzati (SISSA)Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAM
Rights
© SISSA 2012; © 2012 CERN for the benefit of the CMS collaborationAbstract
A measurement of the single-top-quark t-channel production cross section in pp collisions at √s=7 TeV with the CMS detector at the LHC is presented. Two different and complementary approaches have been followed. The first approach exploits the distributions of the pseudorapidity of the recoil jet and reconstructed top-quark mass using background estimates determined from control samples in data. The second approach is based on multivariate analysis techniques that probe the compatibility of the candidate events with the signal. Data have been collected for the muon and electron final states, corresponding to integrated luminosities of 1.17 and 1.56 fb-1, respectively. The single-top-quark production cross section in the t-channel is measured to be 67.2 ± 6.1 pb, in agreement with the approximate next-to-next-to-leading- order standard model prediction. Using the standard model electroweak couplings, the CKM matrix element |V tb| is measured to be 1.020 ± 0.046 (meas.) ± 0.017 (theor.)
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Google Scholar:The CMS collaboration
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Chatrchyan, S.
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Albajar Molera, Carmen
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Codispoti, G.
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Fernández Trocóniz Acha, Jorge
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