Measurement of the Ratio of B + and B 0 Meson Lifetimes

• Published in: Physical review letters Vol. 94; no. 18; pp. 182001(1 - 7
• Main Authors: Abazov, V. M., Abbott, B., Abolins, M., Acharya, B. S., Adams, M., Adams, T., Agelou, M., Agram, J.-L., Ahn, S. H., Ahsan, M., Alexeev, G. D., Alkhazov, G., Alton, A., Alverson, G., Alves, G. A., Anastasoaie, M., Anderson, S., Andrieu, B., Arnoud, Y., Askew, A., Åsman, B., Atramentov, O., Autermann, C., Avila, C., Badaud, F., Baden, A., Baldin, B., Balm, P. W., Banerjee, S., Barberis, E., Bargassa, P., Baringer, P., Barnes, C., Barreto, J., Bartlett, J. F., Bassler, U., Bauer, D., Bean, A., Beauceron, S., Begel, M., Bellavance, A., Beri, S. B., Bernardi, G., Bernhard, R., Bertram, I., Besançon, M., Beuselinck, R., Bezzubov, V. A., Bhat, P. C., Bhatnagar, V., Binder, M., Black, K. M., Blackler, I., Blazey, G., Blekman, F., Blessing, S., Bloch, D., Blumenschein, U., Boehnlein, A., Boeriu, O., Bolton, T. A., Borcherding, F., Borissov, G., Bos, K., Bose, T., Brandt, A., Brock, R., Brooijmans, G., Bross, A., Buchanan, N. J., Buchholz, D., Buehler, M., Buescher, V., Burdin, S., Burnett, T. H., Busato, E., Butler, J. M., Bystricky, J., Carvalho, W., Casey, B. C. K., Cason, N. M., Castilla-Valdez, H., Chakrabarti, S., Chakraborty, D., Chan, K. M., Chandra, A., Chapin, D., Charles, F., Cheu, E., Chevalier, L., Cho, D. K., Choi, S., Christiansen, T., Christofek, L., Claes, D., Clément, B., Clément, C., Coadou, Y., Cooke, M., Cooper, W. E.
• Format: Journal Article
• Language: English
• Published: American Physical Society 2005
• Subjects: Fysik; High Energy Physics - Experiment; NATURAL SCIENCES; NATURVETENSKAP; Physics; B mesons; meson decay; semileptonic decays
• ISSN: 0031-9007; 1079-7114; 1079-7114
• DOI: 10.1103/PhysRevLett.94.182001

The ratio of the B+ and B0 meson lifetimes was measured using data collected in 2002–2004 by the D0 experiment in Run II of the Fermilab Tevatron Collider. These mesons were reconstructed in B-->µ+nuD*-X decays, which are dominated by B0 and B-->µ+nu[overline D]0X decays, which are dominated by B+. The ratio of lifetimes is measured to be tau+/tau0=1.080±0.016(stat)±0.014(syst).