Abazov, V. M. ; Mondal, N. K. ; et, al
(2006)
*Direct limits on the B _{s}^{0} oscillation frequency*
Physical Review Letters, 97
(2).
021802_1-021802_7.
ISSN 0031-9007

Full text not available from this repository.

Official URL: http://prl.aps.org/abstract/PRL/v97/i2/e021802

Related URL: http://dx.doi.org/10.1103/PhysRevLett.97.021802

## Abstract

We report results of a study of the B_{s}^{0} oscillation frequency using a large sample of B_{s}^{0} semileptonic decays corresponding to approximately 1 fb^{−1} of integrated luminosity collected by the D0 experiment at the Fermilab Tevatron Collider in 2002-2006. The amplitude method gives a lower limit on the B_{s}^{0} oscillation frequency at 14.8 ps^{−1} at the 95% C.L. At Δm_{s}=19 ps^{−1}, the amplitude deviates from the hypothesis A=0 (1) by 2.5 (1.6) standard deviations, corresponding to a two-sided C.L. of 1% (10%). A likelihood scan over the oscillation frequency, Δm_{s}, gives a most probable value of 19 ps^{−1} and a range of 17<Δm_{s}<21 ps^{−1} at the 90% C.L., assuming Gaussian uncertainties. This is the first direct two-sided bound measured by a single experiment. If Δm_{s} lies above 22 ps^{−1}, then the probability that it would produce a likelihood minimum similar to the one observed in the interval 16-22 ps^{−1} is (5.0±0.3)%.

Item Type: | Article |
---|---|

Source: | Copyright of this article belongs to The American Physical Society. |

ID Code: | 76197 |

Deposited On: | 31 Dec 2011 08:16 |

Last Modified: | 31 Dec 2011 08:16 |

Repository Staff Only: item control page