Search for the rare decay B s 0 → μ + μ

• Published in: Physics letters. B Vol. 693; no. 5; pp. 539 - 544
• Main Authors: Abazov, V.M., Abbott, B., Abolins, M., Acharya, B.S., Adams, M., Adams, T., Alexeev, G.D., Alkhazov, G., Alton, A., Alverson, G., Alves, G.A., Ancu, L.S., Aoki, M., Arnoud, Y., Arov, M., Askew, A., Åsman, B., Atramentov, O., Avila, C., BackusMayes, J., Badaud, F., Bagby, L., Baldin, B., Bandurin, D.V., Banerjee, S., Barberis, E., Barfuss, A.-F., Baringer, P., Barreto, J., Bartlett, J.F., Bassler, U., Beale, S., Bean, A., Begalli, M., Begel, M., Belanger-Champagne, C., Bellantoni, L., Benitez, J.A., Beri, S.B., Bernardi, G., Bernhard, R., Bertram, I., Besançon, M., Beuselinck, R., Bezzubov, V.A., Bhat, P.C., Bhatnagar, V., Blazey, G., Blessing, S., Bloom, K., Boehnlein, A., Boline, D., Bolton, T.A., Boos, E.E., Borissov, G., Bose, T., Brandt, A., Brandt, O., Brock, R., Brooijmans, G., Bross, A., Brown, D., Bu, X.B., Buchholz, D., Buehler, M., Buescher, V., Bunichev, V., Burdin, S., Burnett, T.H., Buszello, C.P., Calfayan, P., Calpas, B., Calvet, S., Camacho-Pérez, E., Cammin, J., Carrasco-Lizarraga, M.A., Carrera, E., Casey, B.C.K., Castilla-Valdez, H., Chakrabarti, S., Chakraborty, D., Chan, K.M., Chandra, A., Chen, G., Chevalier-Théry, S., Cho, D.K., Cho, S.W., Choi, S., Choudhary, B., Christoudias, T., Cihangir, S., Claes, D., Clutter, J., Cooke, M., Cooper, W.E., Corcoran, M., Couderc, F., Cousinou, M.-C., Croc, A., Cutts, D.
• Format: Journal Article
• Language: English
• Published: Elsevier 2010
• Subjects: b-quarks; Elementarpartikelfysik; Elementary particle physics; Fysik; High Energy Physics - Experiment; NATURAL SCIENCES; NATURVETENSKAP; Physics; Rare decays
• ISSN: 0370-2693; 1873-2445
• DOI: 10.1016/j.physletb.2010.09.024

We present the results of a search for the flavor changing neutral current decay B_s^0->mu^+mu^- using 6.1 fb^-1 of ppbar collisions at sqrt(s) = 1.96 TeV collected by the D0 experiment at the Fermilab Tevatron Collider. The observed number of B_s^0 candidates is consistent with background expectations. The resulting upper limit on the branching fraction is BR(B_s^0->mu^+mu^-) < 5.1 x 10^-8 at the 95% C.L. This limit is a factor of 2.4 better than that of the previous D0 analysis and the best limit to date.