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Measurement of the lifetime difference in the B-s(0) system
| dc.contributor.author | Baringer, Philip S. | |
| dc.contributor.author | Bean, Alice | |
| dc.contributor.author | Christofek, L. | |
| dc.contributor.author | Coppage, Don | |
| dc.contributor.author | Gardner, J. | |
| dc.contributor.author | Hensel, Carsten | |
| dc.contributor.author | Jabeen, S. | |
| dc.contributor.author | Moulik, Tania | |
| dc.contributor.author | Wilson, Graham Wallace | |
| dc.date.accessioned | 2007-05-14T18:47:57Z | |
| dc.date.available | 2007-05-14T18:47:57Z | |
| dc.date.issued | 2005-10 | |
| dc.identifier.citation | Abazov, VM; Abbott, B, et al. Measurement of the lifetime difference in the B-s(0) system. PHYSICAL REVIEW LETTERS. October 2005. 95(17) | |
| dc.identifier.uri | http://hdl.handle.net/1808/1582 | |
| dc.description.abstract | We present a study of the decay B-s(0)-> J/psi phi. We obtain the CP-odd fraction in the final state at time zero R-perpendicular to = 0.16 +/- 0.10 (stat) +/- 0.02(syst), the average lifetime of the (B-s(0), (B) over bar (0)(s)) system, (tau) over bar (B-s(0)) = 1.39(-0.16)(+0.13)(stat)(-0.02)(+0.01)(syst) ps, and the relative width difference between the heavy and light mass eigen-states, Delta Gamma/(Gamma) over bar = (Gamma(L) - Gamma(H))/(Gamma) over bar = 0.24(-0.38)(+0.28)(stat)(-0.04)(+0.03)(syst). With the additional constraint from the world average of the B-s(0) lifetime measurements using semileptonic decays, we find (tau) over bar (B-s(0)) = 1.39 +/- 0.06 ps and Delta Gamma/(Gamma) over bar = 0.25(-0.15)(+0.14). For the ratio of the B-s(0) and B-0 lifetimes we obtain (tau) over bar (B-s(0))/tau(B-s(0)) = 0.91 +/- 0.09(stat) +/- 0.003(syst). | |
| dc.language.iso | en_US | |
| dc.publisher | AMERICAN PHYSICAL SOC | |
| dc.title | Measurement of the lifetime difference in the B-s(0) system | |
| dc.type | Article | |
| dc.identifier.doi | 10.1103/PhysRevLett.95.171801 | |
| dc.rights.accessrights | openAccess |
