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URN: urn:nbn:de:swb:90-420388
Originalveröffentlichung
DOI: 10.1007/JHEP02(2014)013
Scopus
Zitationen: 38
Web of Science
Zitationen: 21

Measurement of associated W plus charm production in pp collisions at root s=7 TeV

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.; ... mehr

Abstract:
Measurements are presented of the associated production of a W boson and a charm-quark jet (W + c) in pp collisions at a center-of-mass energy of 7 TeV. The analysis is conducted with a data sample corresponding to a total integrated luminosity of 5 fb &#8722;1 , collected by the CMS detector at the LHC. W boson candidates are identified by their decay into a charged lepton (muon or electron) and a neutrino. The W + c measurements are performed for charm-quark jets in the kinematic region pjetT > 25 GeV, |&#951; jet | < 2 . 5, for two different thresholds for the transverse momentum of the lepton from the W-boson decay, and in the pseudorapidity range |&#951; &#8467; | < 2 . 1. Hadronic and inclusive semileptonic decays of charm hadrons are used to measure the following total cross sections: &#963;(pp &#8594; W + c + X) × B (W &#8594; &#8467;&#957;) = 107 . 7 ± 3 . 3 (stat . ) ± 6 . 9 (syst . ) pb ( p&#8467;T > 25 GeV) and &#963;(pp &#8594; W + c + X)× B (W &#8594; &#8467;&#957;) = 84 . 1 ± 2 . 0 (stat . ) ± 4 . 9 (syst . ) pb ( p&#8467;T > 35 GeV), and t ... mehr


Zugehörige Institution(en) am KIT Institut für Experimentelle Kernphysik (IEKP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2014
Sprache Englisch
Identifikator ISSN: 1029-8479
KITopen ID: 1000042038
Erschienen in Journal of High Energy Physics
Band 2014
Heft 2
Seiten 013
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
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