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B-s(0) lifetime measurement in the CP-odd decay channel B-s(0) -> J/Psi f(0)(980)
Joint Nucl Res Inst, Dubna 141980, Russia..
Univ Oklahoma, Norman, OK 73019 USA..
Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India..
Univ Illinois, Chicago, IL 60607 USA..
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2016 (English)In: PHYSICAL REVIEW D, ISSN 2470-0010, Vol. 94, no 1, 012001Article in journal (Refereed) PublishedText
Abstract [en]

The lifetime of the B-s(0) meson is measured in the decay channel B-s(0) -> J/Psi pi(+)pi(-) with 880 <= M pi+pi- <= 1080 MeV/c(2), which is mainly a CP-odd state and dominated by the f(0)(980) resonance. In 10.4 fb(-1) of data collected with the D0 detector in Run II of the Tevatron, the lifetime of the B-s(0) meson is measured to be tau(B-s(0)) = 1.70 +/- 0.14(stat) +/- 0.05(syst) ps. Neglecting CP violation in B-s(0)/(B) over bar (0)(s) mixing, the measurement can be translated into the width of the heavy mass eigenstate of the B-s(0), Gamma(H) = 0.59 +/- 0.05(stat) +/- 0.02(syst) ps(-1).

Place, publisher, year, edition, pages
2016. Vol. 94, no 1, 012001
National Category
Subatomic Physics
URN: urn:nbn:se:uu:diva-300467DOI: 10.1103/PhysRevD.94.012001ISI: 000379680700001OAI: oai:DiVA.org:uu-300467DiVA: diva2:951448
Swedish Research Council
Available from: 2016-08-09 Created: 2016-08-09 Last updated: 2016-08-09Bibliographically approved

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