Measurement of the forward-backward asymmetry in the production of B± mesons in pp¯ collisions at s√=1.96 TeV

Bertram, Iain and Borissov, Guennadi and Fox, Harald and Williams, Mark and Ratoff, Peter and Ross, Anthony (2015) Measurement of the forward-backward asymmetry in the production of B± mesons in pp¯ collisions at s√=1.96  TeV. Physical review letters, 114 (5). ISSN 1079-7114

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Abstract

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)]%.

Item Type:
Journal Article
Journal or Publication Title:
Physical review letters
Additional Information:
8 pages, 3 figures, submitted to Phys. Rev. Lett © 2015 American Physical Society
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100
Subjects:
ID Code:
72854
Deposited By:
Deposited On:
06 Feb 2015 17:10
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Apr 2020 03:46