CMS_2017_I1499471

Back to index

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 $\text{fb}^{-1}$. 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. Note of the authors: the Z boson selection and b-tagging algorithms used in the code are based on standard Rivet code and do not exactly coincide with those used in the paper. They anyway reproduce the paper results at the percent level or better for most of the bins.

⚓⌘ d01-x01-y01:

⚓⌘ d02-x01-y01:

⚓⌘ d03-x01-y01:

⚓⌘ d04-x01-y01:

⚓⌘ d05-x01-y01:

⚓⌘ d06-x01-y01:

⚓⌘ d07-x01-y01:

⚓⌘ d08-x01-y01:

⚓⌘ d09-x01-y01:

⚓⌘ d10-x01-y01:

⚓⌘ d11-x01-y01:

⚓⌘ d12-x01-y01:

⚓⌘ d13-x01-y01:

⚓⌘ d14-x01-y01:

⚓⌘ d15-x01-y01:

⚓⌘ d16-x01-y01:

⚓⌘ d17-x01-y01:

⚓⌘ d18-x01-y01:

⚓⌘ d19-x01-y01:

⚓⌘ d20-x01-y01: