Abstract
Abstract: Measurements of differential production cross-sections of a Z boson in association with b-jets in pp collisions at √ = 7 TeV are reported. The data analysed correspond to an integrated luminosity of 4.6 fb−1 recorded with the ATLAS detector at the Large Hadron Collider. Particle-level cross-sections are determined for events with a Z boson decaying into an electron or muon pair, and containing b-jets. For events with at least one b-jet, the cross-section is presented as a function of the Z boson transverse momentum and rapidity, together with the inclusive b-jet cross-section as a function of b-jet transverse momentum, rapidity and angular separations between the b-jet and the Z boson. For events with at least two b-jets, the cross-section is determined as a function of the invariant mass and angular separation of the two highest transverse momentum b-jets, and as a function of the Z boson transverse momentum and rapidity. Results are compared to leading-order and next-to-leading-order perturbative QCD calculations.
Original language | English (US) |
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Article number | 141 |
Pages (from-to) | 1-49 |
Number of pages | 49 |
Journal | Journal of High Energy Physics |
Volume | 2014 |
Issue number | 10 |
DOIs | |
State | Published - Oct 2014 |
Keywords
- Electroweak interaction
- Hadron-Hadron Scattering
- Heavy quark production
- QCD
ASJC Scopus subject areas
- Nuclear and High Energy Physics