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Combined D0 measurements constraining the CP-violating phase and width difference in the B/s0 system.

Abazov, V.M. and Bertram, Iain and Borissov, Guennadi and Fox, Harald and Ratoff, Peter and Sopczak, Andre (2007) Combined D0 measurements constraining the CP-violating phase and width difference in the B/s0 system. Physical Review D, 76. 057101. ISSN 1550-7998

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Abstract

We combine the D0 measurement of the width difference between the light and heavy Bs0 mass eigenstates and of the CP-violating mixing phase determined from the time-dependent angular distributions in the Bs0-->J/psiphi decays along with the charge asymmetry in semileptonic decays also measured with the D0 detector. With the additional constraint from the world average of the flavor-specific Bs0 lifetime, we obtain DeltaGammas[equivalent](GammaL-GammaH)=0.13±0.09 ps-1 and |phis|=0.70-0.47+0.39 or DeltaGammas=-0.13±0.09 ps-1 and |phis|=2.44-0.39+0.47. The data sample corresponds to an integrated luminosity of 1.1 fb-1 accumulated with the D0 detector at the Fermilab Tevatron Collider.

Item Type: Article
Journal or Publication Title: Physical Review D
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 11249
Deposited By: Dr Iain Bertram
Deposited On: 12 Aug 2008 15:26
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 14:58
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/11249

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