Measurement of the B^0_s lifetime in the exclusive decay channel B^0_s -> J/psi phi

Abstract

Using the exclusive decay B^0_s -> J/psi (mu+mu-) phi(K+K-), we report the most precise single measurement of the B^0_s lifetime. The data sample corresponds to an integrated luminosity of approximately 220 pb-1 collected with the DO detector at the Fermilab Tevatron Collider in 2002-2004. We reconstruct 337 signal candidates, from which we extract the B^0_s lifetime, τ(B^0_s) = 1.444 +0.098/-0.090 stat +/- 0.020 sys ps. We also report a measurement for the lifetime of the B^0 meson using the exclusive decay B^0 -> J/psi (mu+mu-)K*0(892)(K+pi-). We reconstruct 1370 signal candidates, obtaining τ(B^0) = 1.473 +0.052/-0.050 stat +/- 0.023 sys ps, and the ratio of lifetimes, τ(B^0_s)/τ(B^0) = 0.980 +0.076/-0.071 stat +/- 0.003 sys.

7 pages, 4 Figures, Submitted to Physical Review Letters. Minor changes after PRL referees coments

References in corpus (3)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Spectator effects and lifetimes of heavy hadrons
• b-tagging in DELPHI at LEP

Cited by in corpus (14)

• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of summer 2016
• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2018
• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2021
• Measurement of the $B_s^0$ Lifetime Using Semileptonic Decays
• $g_{D_s^{\ast }D{K}^{\ast }(892)}$ and $g_{B_s^{\ast }B{K}^{\ast }(892)}$ coupling constants in QCD sum rules
• Measurement of the angular and lifetime parameters of the decays $B_d^0\to J/\psi K^{\ast 0}$ and $B_s^0\to J/\psi \varphi$
• Measurement of the Lifetime Difference in the B_s^0 System
• Search for the Rare Decay B0_s -> phi mu^+ mu- with the D0 Detector
• B physics at the DO Experiment at Fermilab
• Investigation of the $D_s^{\ast }{D}_s{\eta }^{(\prime )}$ and $B_s^{\ast }{B}_s{\eta }^{(\prime )}$ vertices via QCD sum rules
• Relative rates of B meson decays into psi(2S) and J/psi mesons
• Review of Physics Results from the Tevatron: Heavy Flavor Physics
• Revisiting the $B_s^{(\ast )}$-Meson Production at the Hadronic Colliders
• Hadronic production of $B_s^{(\ast )}$ at TEVATRON and LHC