B0 s lifetime measurement in the CP-odd decay channel B0 s → J=ψ f 0 (980)

Bertram, Iain Alexander and Borissov, Guennadi and Fox, Harald and Ratoff, Peter Neil and Ross, Anthony (2016) B0 s lifetime measurement in the CP-odd decay channel B0 s → J=ψ f 0 (980). Physical Review D, 94 (1). ISSN 1550-7998

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Abstract

The lifetime of the B0 s meson is measured in the decay channel B0 s → J=ψπþπ− with 880 ≤ Mπþπ− ≤ 1080 MeV=c2, which is mainly a CP-odd state and dominated by the f0ð980Þ resonance. In 10.4 fb−1 of data collected with the D0 detector in Run II of the Tevatron, the lifetime of the B0 s meson is measured to be τ(B0 s) = 1.70 0.14(stat) 0.05(syst) ps. Neglecting CP violation in B0 s=B¯ 0 s mixing, the measurement can be translated into the width of the heavy mass eigenstate of the B0 s, ΓH = 0.59 +- 0.05(stat) 0.02(syst) ps−1.

Item Type:
Journal Article
Journal or Publication Title:
Physical Review D
Additional Information:
© 2016 American Physical Society
ID Code:
80825
Deposited By:
Deposited On:
09 Aug 2016 08:58
Refereed?:
Yes
Published?:
Published
Last Modified:
25 Sep 2020 02:42