Measurement of the average time-integrated mixing probability of b-flavored hadrons produced at the Fermilab Tevatron

Acosta, D. et al. (2004) Measurement of the average time-integrated mixing probability of b-flavored hadrons produced at the Fermilab Tevatron. Physical Review D, 69(1), art-012002. (doi: 10.1103/PhysRevD.69.012002)

Abstract

We have measured the number of like-sign (LS) and opposite-sign (OS) lepton pairs arising from double semileptonic decays of b and (b) over bar hadrons, pair produced at the Fermilab Tevatron collider. The data samples were collected with the Collider Detector at Fermilab during the 1992-1995 collider run by triggering on the existence of mumu or emu candidates in an event. The observed ratio of LS to OS dileptons leads to a measurement of the average time-integrated mixing probability of all produced b-flavored hadrons which decay weakly, (χ) over bar =0.152+/-0.007 (stat)+/-0.011 (syst), that is significantly larger than the world average (χ) over bar =0.118+/-0.005.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Bell, Dr William
• Authors: Acosta, D., Affolder, T., Akimoto, H., Albrow, M.G., Ambrose, D., Amidei, D., Anikeev, K., Antos, J., Apollinari, G., Arisawa, T., Artikov, A., Asakawa, T., Ashmanskas, W., Azfar, F., Azzi-Bacchetta, P., Bacchetta, N., Bachacou, H., Badgett, W., Bailey, S., de Barbaro, P., Barbaro-Galtieri, A., Barnes, V.E., Barnett, B.A., Baroiant, S., Barone, M., Bauer, G., Bedeschi, F., Behari, S., Belforte, S., Bell, W.H., Bellettini, G., Bellinger, J., Benjamin, D., Bensinger, J., Beretvas, A., Berryhill, J., Bhatti, A., Binkley, M., Bisello, D., Bishai, M., Blair, R.E., Blocker, C., Bloom, K., Blumenfeld, B., Blusk, S.R., Bocci, A., Bodek, A., Bolla, G., Bolshov, A., Bonushkin, Y., Bortoletto, D., Boudreau, J., Brandl, A., Bromberg, C., Brozovic, M., Brubaker, E., Bruner, N., Budagov, J., Budd, H.S., Burkett, K., Busetto, G., Byrum, K.L., Cabrera, S., Calafiura, P., Campbell, M., Carithers, W., Carlson, J., Carlsmith, D., Caskey, W., Castro, A., Cauz, D., Cerri, A., Cerrito, L., Chan, A.W., Chang, P.S., Chang, P.T., Chapman, J.N., Chen, C., Chen, Y.C., and Cheng, M.T.
• Subjects: Q Science > QC Physics
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Physical Review D
• Publisher: American Physical Society
• ISSN: 1550-7998
• ISSN (Online): 1089-4918