عنوان

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

شماره

LA4t06t98c

عنوان اصلي

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

نام عام مواد

[Article]

نام نخستين پديدآور

Aad, GAbbott, BAbbott, DCAbed Abud, AAbeling, KAbhayasinghe, DKAbidi, SHAbouZeid, OSAbraham, NLAbramowicz, HAbreu, HAbulaiti, YAcharya, BSAchkar, BAdam, LAdam Bourdarios, CAdamczyk, LAdamek, LAdelman, JAdersberger, MAdiguzel, AAdorni, SAdye, TAffolder, AAAfik, Yet al.

متن يادداشت

© 2020, The Author(s). 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.]

تاريخ نشر

2020

عنوان

Lawrence Berkeley National Laboratory

نام الکترونيکي

نوع ماده

[Article]

کد کاربرگه

279172

سطح دسترسي

a

تكميل شده

Y