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Free accessOther version: http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.106.121804
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unige:38664 
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Measurement of b Hadron Lifetimes in Exclusive Decays Containing a J/ψ in pp Collisions at √s=1.96 TeV |
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| Collaboration | With : Clark, Allan Geoffrey / Garcia Navarro, Jose Enrique / Lister, Alison / Wu, Xin | |
| Published in | Physical Review Letters. 2011, vol. 106, no. 12, p. 121804 | |
| Abstract | We report on a measurement of b-hadron lifetimes in the fully reconstructed decay modes B+→J/ψK+, B0→J/ψK∗(892)0, B0→J/ψK0s, and Λ0b→J/ψΛ0 using data corresponding to an integrated luminosity of 4.3 fb−1, collected by the CDF II detector at the Fermilab Tevatron. The measured lifetimes are τ(B+)=[1.639±0.009(stat)±0.009(syst)] ps, τ(B0)=[1.507±0.010(stat)±0.008(syst)] ps, and τ(Λ0b)=[1.537±0.045(stat)±0.014(syst)] ps. The lifetime ratios are τ(B+)/τ(B0)=[1.088±0.009(stat)±0.004(syst)] and τ(Λ0b)/τ(B0)=[1.020±0.030(stat)±0.008(syst)]. These are the most precise determinations of these quantities from a single experiment. | |
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Article (Published version) (302 Kb) - Free access Other version: http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.106.121804 |
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| Structures | ||
| Citation (ISO format) | CDF COLLABORATION. Measurement of b Hadron Lifetimes in Exclusive Decays Containing a J/ψ in pp Collisions at √s=1.96 TeV. In: Physical Review Letters, 2011, vol. 106, n° 12, p. 121804. https://archive-ouverte.unige.ch/unige:38664 |
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