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Title: Measurement of the Forward-Backward Asymmetry in the Production of B ± Mesons in pp¯ Collisions at √s = 1.96 TeV

Abstract

We present a measurement of the forward-backward asymmetry in the production of B ± mesons, A FB(B ±), using B ± → J/ψK ± decays in 10.4 fb -1 of pp¯ collisions at √s = 1.96 TeV collected by the D0 experiment during Run II of the Tevatron collider. A nonzero asymmetry would indicate a preference for a particular flavor, i.e., b quark or b¯ antiquark, to be produced in the direction of the proton beam. We extract A FB(B ±) from a maximum likelihood fit to the difference between the numbers of forward- and backward-produced B ± mesons. We measure an asymmetry consistent with zero: A FB(B ±) = [-0.24 ± 0.41 (stat) ± 0.19 (syst)]%.

Authors:
 [1]
  1. Joint Inst. for Nuclear Research (JINR), Dubna (Russian Federation); et al.
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Org.:
D0 Collaboration
OSTI Identifier:
1226304
Report Number(s):
FERMILAB-PUB-14-472-E
Journal ID: ISSN 0031-9007; arXiv eprint number arXiv:1411.3021; TRN: US1600795
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 114; Journal Issue: 05; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Abazov, Victor Mukhamedovich. Measurement of the Forward-Backward Asymmetry in the Production of B± Mesons in pp¯ Collisions at √s = 1.96 TeV. United States: N. p., 2015. Web. doi:10.1103/PhysRevLett.114.051803.
Abazov, Victor Mukhamedovich. Measurement of the Forward-Backward Asymmetry in the Production of B± Mesons in pp¯ Collisions at √s = 1.96 TeV. United States. doi:10.1103/PhysRevLett.114.051803.
Abazov, Victor Mukhamedovich. Wed . "Measurement of the Forward-Backward Asymmetry in the Production of B± Mesons in pp¯ Collisions at √s = 1.96 TeV". United States. doi:10.1103/PhysRevLett.114.051803. https://www.osti.gov/servlets/purl/1226304.
@article{osti_1226304,
title = {Measurement of the Forward-Backward Asymmetry in the Production of B± Mesons in pp¯ Collisions at √s = 1.96 TeV},
author = {Abazov, Victor Mukhamedovich},
abstractNote = {We present a measurement of the forward-backward asymmetry in the production of B± mesons, AFB(B±), using B± → J/ψK± decays in 10.4 fb-1 of pp¯ collisions at √s = 1.96 TeV collected by the D0 experiment during Run II of the Tevatron collider. A nonzero asymmetry would indicate a preference for a particular flavor, i.e., b quark or b¯ antiquark, to be produced in the direction of the proton beam. We extract AFB(B±) from a maximum likelihood fit to the difference between the numbers of forward- and backward-produced B± mesons. We measure an asymmetry consistent with zero: AFB(B±) = [-0.24 ± 0.41 (stat) ± 0.19 (syst)]%.},
doi = {10.1103/PhysRevLett.114.051803},
journal = {Physical Review Letters},
number = 05,
volume = 114,
place = {United States},
year = {2015},
month = {2}
}

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