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Lifetime difference and CP-violating phase in the B<sup>0</sup><sub></sub>s system}.

Abazov, V. M. and Bertram, Iain and Borissov, Guennadi and Fox, Harald and Ratoff, Peter and Sopczak, Andre (2007) Lifetime difference and CP-violating phase in the B<sup>0</sup><sub></sub>s system}. Physical Review Letters, 98. p. 121801. ISSN 1079-7114

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Abstract

From an analysis of the decay BJ/, we obtain the width difference between the light and heavy mass eigenstates (L-H)=0.17±0.09(stat)±0.02(syst) ps-1 and the CP-violating phase s=-0.79±0.56(stat)(syst). Under the hypothesis of no CP violation (s0), we obtain 1/= (B)=1.52±0.08(stat)(syst) ps and =0.12(stat)±0.02(syst) ps-1. The data sample corresponds to an integrated luminosity of about 1.1 fb-1 accumulated with the D0 detector at the Fermilab Tevatron collider. This is the first direct measurement of the CP-violating mixing phase in the B system.

Item Type: Article
Journal or Publication Title: Physical Review Letters
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 11253
Deposited By: Dr Iain Bertram
Deposited On: 12 Aug 2008 14:01
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 14:58
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/11253

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