Measurement of the forward-backward asymmetry in the production of B(±) mesons in pp̄ collisions at √s=1.96 TeV

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 pp̄ collisions at sqrt[s]=1.96 TeV collected by the D0 experiment during Run II of the Tevatron collider. A nonzero asymmetry would indicate a prefe...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Physical review letters 2015-02, Vol.114 (5), p.051803-051803
Hauptverfasser:	Abazov, V M, Abbott, B, Acharya, B S, Adams, M, Adams, T, Agnew, J P, Alexeev, G D, Alkhazov, G, Alton, A, Askew, A, Atkins, S, Augsten, K, Avila, C, Badaud, F, Bagby, L, Baldin, B, Bandurin, D V, Banerjee, S, Barberis, E, Baringer, P, Bartlett, J F, Bassler, U, Bazterra, V, Bean, A, Begalli, M, Bellantoni, L, Beri, S B, Bernardi, G, Bernhard, R, Bertram, I, Besançon, M, Beuselinck, R, Bhat, P C, Bhatia, S, Bhatnagar, V, Blazey, G, Blessing, S, Bloom, K, Boehnlein, A, Boline, D, Boos, E E, Borissov, G, Borysova, M, Brandt, A, Brandt, O, Brock, R, Bross, A, Brown, D, Bu, X B, Buehler, M, Buescher, V, Bunichev, V, Burdin, S, Buszello, C P, Camacho-Pérez, E, Casey, B C K, Castilla-Valdez, H, Caughron, S, Chakrabarti, S, Chan, K M, Chandra, A, Chapon, E, Chen, G, Cho, S W, Choi, S, Choudhary, B, Cihangir, S, Claes, D, Clutter, J, Cooke, M, Cooper, W E, Corcoran, M, Couderc, F, Cousinou, M-C, Cutts, D, Das, A, Davies, G, de Jong, S J, De La Cruz-Burelo, E, Déliot, F, Demina, R, Denisov, D, Denisov, S P, Desai, S, Deterre, C, DeVaughan, K, Diehl, H T, Diesburg, M, Ding, P F, Dominguez, A, Dubey, A, Dudko, L V, Duperrin, A, Dutt, S, Eads, M, Edmunds, D, Ellison, J, Elvira, V D, Enari, Y, Evans, H
Format:	Artikel
Sprache:	eng
Schlagworte:	PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	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 pp̄ collisions at sqrt[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)]%.
ISSN:	0031-9007 1079-7114