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Free accessOther version: http://journals.aps.org/prd/abstract/10.1103/PhysRevD.84.052012
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unige:38704 
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Measurement of branching ratio and Bs0 lifetime in the decay Bs0 -> J/ψf0(980) at CDF |
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| Collaboration | With : Clark, Allan Geoffrey / Garcia Navarro, Jose Enrique / Lister, Alison / Wu, Xin | |
| Published in | Physical Review. D. 2011, vol. 84, no. 05, p. 052012 | |
| Abstract | We present a study of B0s decays to the CP-odd final state J/ψf0(980) with J/ψ→μ+μ− and f0(980)→π+π−. Using pp collision data with an integrated luminosity of 3.8 fb−1 collected by the CDF II detector at the Tevatron we measure a B0s lifetime of τ(B0s→J/ψf0(980))=1.70+0.12−0.11(stat)±0.03(syst)ps. This is the first measurement of the B0s lifetime in a decay to a CP eigenstate and corresponds in the standard model to the lifetime of the heavy B0s eigenstate. We also measure the product of branching fractions of B0s→J/ψf0(980) and f0(980)→π+π− relative to the product of branching fractions of B0s→J/ψϕ and ϕ→K+K− to be Rf0/ϕ=0.257±0.020(stat)±0.014(syst), which is the most precise determination of this quantity to date. | |
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Article (Published version) (631 Kb) - Free access Other version: http://journals.aps.org/prd/abstract/10.1103/PhysRevD.84.052012 |
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| Structures | ||
| Citation (ISO format) | CDF COLLABORATION. Measurement of branching ratio and Bs0 lifetime in the decay Bs0 -> J/ψf0(980) at CDF. In: Physical Review. D, 2011, vol. 84, n° 05, p. 052012. https://archive-ouverte.unige.ch/unige:38704 |
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