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B0s lifetime measurement in the CP-odd decay channel B0s → J=ψ f 0ð980Þ
D0 Collaboration
D0 Collaboration
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Abstract
The lifetime of the B0s meson is measured in the decay channel B0s→J/ψπ+π− with 880≤Mπ+π−≤1080 MeV/c2, which is mainly a CP-odd state and dominated by the f0(980) resonance. In 10.4 fb−1 of data collected with the D0 detector in Run II of the Tevatron, the lifetime of the B0s meson is measured to be τ(B0s)=1.70±0.14(stat)±0.05(syst) ps. Neglecting CP violation in B0s/¯B0s mixing, the measurement can be translated into the width of the heavy mass eigenstate of the B0s, ΓH=0.59±0.05(stat)±0.02(syst) ps−1.
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2016-07-06
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American Physical Society
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Bertram, I. A., Fox, H., Ratoff, P. N., & Ross, A. (2016). B0 s lifetime measurement in the CP-odd decay channel B0 s→ J= ψ f 0 (980). Physical Review D, 94(1).