Publications [#309305] of Seog Oh

Papers Published
  1. Aaltonen, TEA, Measurement of branching ratio and ${B}_{s}^{0}$ lifetime in the decay ${B}_{s}^{0}\rightarrow{J}/\psi{f}_{0}(980)$ at {CDF}, Phys. Rev. D, vol. 84 no. 5 (September, 2011), pp. 052012, American Physical Society [doi] .

    Abstract:
    We present a study of Bs0 decays to the CP-odd final state J/ψf 0(980) with J/ψ→μ+μ- and f 0(980)→π+π-. Using pp̄ collision data with an integrated luminosity of 3.8fb-1 collected by the CDF II detector at the Tevatron we measure a Bs0 lifetime of τ(Bs0→J/ψf0(980))=1.70-0.11+0.12(stat)±0.03(syst) ps. This is the first measurement of the Bs0 lifetime in a decay to a CP eigenstate and corresponds in the standard model to the lifetime of the heavy Bs0 eigenstate. We also measure the product of branching fractions of Bs0→J/ψf0(980) and f0(980)→π +π- relative to the product of branching fractions of Bs0→J/ψ and →K+K- to be Rf0 /=0.257±0.020(stat)±0.014(syst), which is the most precise determination of this quantity to date. © 2011 American Physical Society.

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