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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Measurement of the forward-backward asymmetry in the production of B± mesons in pp¯ collisions at s√=1.96 TeV
AU - Bertram, Iain
AU - Borissov, Guennadi
AU - Fox, Harald
AU - Williams, Mark
AU - Ratoff, Peter
AU - Ross, Anthony
AU - D0 Collaboration
N1 - 8 pages, 3 figures, submitted to Phys. Rev. Lett © 2015 American Physical Society
PY - 2015/2/4
Y1 - 2015/2/4
N2 - 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)]%.
AB - 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)]%.
KW - hep-ex
U2 - 10.1103/PhysRevLett.114.051803
DO - 10.1103/PhysRevLett.114.051803
M3 - Journal article
VL - 114
JO - Physical review letters
JF - Physical review letters
SN - 1079-7114
IS - 5
M1 - 051803
ER -