UNIGE document Scientific Article
previous document  unige:38704  next document
add to browser collection
Title

Measurement of branching ratio and Bs0 lifetime in the decay Bs0 -> J/ψf0(980) at CDF

CollaborationWith : 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.
Identifiers
Full text
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

167 hits

18 downloads

Update

Deposited on : 2014-07-15

Export document
Format :
Citation style :