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Lifetime difference and CP-violating phase in the Bs0 system.

Abstract:

From an analysis of the decay Bs0-->J/psi phi, we obtain the width difference between the light and heavy mass eigenstates DeltaGamma identical with (GammaL-GammaH)=0.17+/-0.09(stat)+/-0.02(syst) ps-1 and the CP-violating phase phis=-0.79+/-0.56(stat)(-0.01)(+0.14)(syst). Under the hypothesis of no CP violation (phis identical with 0), we obtain 1/Gamma=tau(Bs0)=1.52+/-0.08(stat)(-0.03)(+0.01)(syst) ps and DeltaGamma=0.12(-0.10)(+0.08)(stat)+/-0.02(syst) ps-1. The data sample corresponds t...

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Journal:
Physical review letters
Volume:
98
Issue:
12
Pages:
121801
Publication date:
2007-03-05
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:1aa36de9-9448-45e7-b0f5-9cdeee42744c
Source identifiers:
180033
Local pid:
pubs:180033
Language:
English
Keywords:

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