# Measurements of the associated production of a Z boson and b jets in pp collisions at √s = 8TeV

CMS Collaboration; Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Brondolin, E.; Dragicevic, M.; Erö, J.; Flechl, M.; Friedl, M.; Frühwirth, R.; Ghete, V. M.; Hartl, C.; Hörmann, N.; Hrubec, J.; Jeitler, M.; König, A.; Krammer, M.; ... mehr

##### Abstract:
Measurements of the associated production of a Z boson with at least one jet originating from a b quark in proton–proton collisions at √s =8TeV are presented. Differential cross sections are measured with data collected by the CMS experiment corresponding to an integrated luminosity of 19.8fb⁻¹. Z bosons are reconstructed through their decays to electrons and muons. Cross sections are measured as a function of observables characterizing the kinematics of the b jet and the Z boson. Ratios of differential cross sections for the associated production with at least one b jet to the associated production with any jet are also presented. The production of a Z boson with at least two b jets is investigated, and differential cross sections are measured for the dijet system. Results are compared to theoretical predictions, testing two different flavour schemes for the choice of initial-state partons.

 Zugehörige Institution(en) am KIT Institut für Experimentelle Kernphysik (IEKP)Institut für Prozessdatenverarbeitung und Elektronik (IPE) Publikationstyp Zeitschriftenaufsatz Publikationsmonat/-jahr 11.2017 Sprache Englisch Identifikator ISSN: 1434-6044, 1434-6052 urn:nbn:de:swb:90-768360 KITopen-ID: 1000076836 Erschienen in The European physical journal / C Verlag Springer Verlag Band 77 Heft 11 Seiten 751 Bemerkung zur Veröffentlichung Gefördert durch SCOAP3 Nachgewiesen in DimensionsWeb of ScienceScopus
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