Using a data sample of pp collisions corresponding to an integrated luminosity of 3 fb -1, the Ξb- and Ωb- baryons are reconstructed in the Ξb-→J/ψΞ- and Ωb-→J/ψΩ- decay modes and their lifetimes measured to beτ(Ξb-)=1.55-0.09+0.10(stat)±0.03(syst)ps,τ(Ωb-)=1.54-0.21+0.26(stat)±0.05(syst)ps. These are the most precise determinations to date. Both measurements are in good agreement with previous experimental results and with theoretical predictions. © 2014 The Authors.
CITATION STYLE
Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Albrecht, J., … Zvyagin, A. (2014). Measurement of the Ξb- and Ωb- baryon lifetimes. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 736, 154–162. https://doi.org/10.1016/j.physletb.2014.06.064
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