Measurements of the Associated Production of a Z Boson and b Jets in pp Collisions at √s = 8 TeV

The European Physical Journal C 2017
V. Khachatryan, A.M. Sirunyan, Viesturs Veckalns

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.

DOI
10.1140/epjc/s10052-017-5140-y
Hipersaite
https://link.springer.com/article/10.1140%2Fepjc%2Fs10052-017-5140-y

Khachatryan, V., Sirunyan, A., Veckalns, V. ... [et al.] Measurements of the Associated Production of a Z Boson and b Jets in pp Collisions at √s = 8 TeV. The European Physical Journal C, 2017, Vol.77, No.11, 1.-10.lpp. ISSN 1434-6044. Pieejams: doi:10.1140/epjc/s10052-017-5140-y

Publikācijas valoda
English (en)