Measurements of the associated production of a Z boson and b jets in pp collisions at sqrt(s) = 8 TeV

Belforte, S.; Candelise, V.; Casarsa, M.; Cossutti, F.; Della Ricca, G.; La Licata, C.; Schizzi, A.; Zanetti, A.; ET AL (the CMS Collaboration),

doi:10.1140/epjc/s10052-017-5140-y

Measurements of the associated production of a Z boson with at least one jet originating from a b quark in proton-proton collisions at sqrt(s) = 8 TeV are presented. Differential cross sections are measured with data collected by the CMS experiment corresponding to an integrated luminosity of 19.8 fb-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.

Measurements of the associated production of a Z boson and b jets in pp collisions at sqrt(s) = 8 TeV / Belforte, S.; Candelise, V.; Casarsa, M.; Cossutti, F.; DELLA RICCA, G.; LA LICATA, C.; Schizzi, A.; Zanetti, A.; ET AL (the CMS, Collaboration). - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - STAMPA. - 77:(2017), pp. 751.1-751.34. [10.1140/epjc/s10052-017-5140-y]