Measurement of Bs0 Mixing Parameters from the Flavor-Tagged Decay Bs0→J/ψ
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Data
2008-12-08
Autores
Abazov, V. M.
Abbott, B.
Abolins, M.
Acharya, B. S.
Adams, M.
Adams, T.
Aguilo, E.
Ahn, S. H.
Ahsan, M.
Alexeev, G. D.
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Resumo
From an analysis of the flavor-tagged decay Bs0→J/ψ we obtain the width difference between the Bs0 light and heavy mass eigenstates, ΔΓs=0.19±0.07(stat)-0.01+0.02(syst)ps-1, and the CP-violating phase, s=-0.57-0.30+0.24(stat)-0.02+0.08(syst). The allowed 90% CL intervals of ΔΓs and s are 0.06<ΔΓs<0.30ps-1 and -1.20<s<0.06, respectively. The data sample corresponds to an integrated luminosity of 2.8fb-1 accumulated with the D0 detector at the Fermilab Tevatron collider. © 2008 The American Physical Society.
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Collider, Data samples, Eigen states, Fermilab Tevatron, Integrated luminosities
Como citar
Physical Review Letters, v. 101, n. 24, 2008.