Bs0 lifetime measurement in the CP -odd decay channel Bs0 →j /ψ f0 (980)

(D0 Collaboration)

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The lifetime of the Bs0 meson is measured in the decay channel Bs0→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 Bs0 meson is measured to be τ(Bs0)=1.70±0.14(stat)±0.05(syst) ps. Neglecting CP violation in Bs0/Bs0 mixing, the measurement can be translated into the width of the heavy mass eigenstate of the Bs0, ΓH=0.59±0.05(stat)±0.02(syst) ps-1.

Original languageEnglish (US)
Article number012001
JournalPhysical Review D
Issue number1
Publication statusPublished - Jul 6 2016


ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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