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Measurements of the production cross-section for a Z boson in association with b-jets in proton-proton collisions at √s = 13 TeV with the ATLAS detector

Aad G.
•
Abbott B.
•
Abbott D. C.
altro
Zwalinski L.
2020
  • journal article

Periodico
JOURNAL OF HIGH ENERGY PHYSICS
Abstract
This paper presents a measurement of the production cross-section of a Z boson in association with b-jets, in proton-proton collisions at s = 13 TeV with the ATLAS experiment at the Large Hadron Collider using data corresponding to an integrated luminosity of 35.6 fb−1. Inclusive and differential cross-sections are measured for events containing a Z boson decaying into electrons or muons and produced in association with at least one or at least two b-jets with transverse momentum pT> 20 GeV and rapidity |y| < 2.5. Predictions from several Monte Carlo generators based on leading-order (LO) or next-to-leading-order (NLO) matrix elements interfaced with a parton-shower simulation and testing different flavour schemes for the choice of initial-state partons are compared with measured cross-sections. The 5-flavour number scheme predictions at NLO accuracy agree better with data than 4-flavour number scheme ones. The 4-flavour number scheme predictions underestimate data in events with at least one b-jet. [Figure not available: see fulltext.]
DOI
10.1007/JHEP07(2020)044
WOS
WOS:000566576600001
Archivio
http://hdl.handle.net/11390/1188914
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85087722167
Diritti
open access
Soggetti
  • Hadron-Hadron scatter...

Web of Science© citazioni
14
Data di acquisizione
Mar 16, 2024
Visualizzazioni
1
Data di acquisizione
Apr 19, 2024
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