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/ψ Ξ− and Ωb− → J/ψ Ω− decay modes and their lifetimes measured to be τ(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.

R. Aaij, B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, J. Albrecht, et al. (2014). Measurement of the Ξb− and Ωb− Baryon Lifetimes. PHYSICS LETTERS. SECTION B, 736, 154-162 [10.1016/j.physletb.2014.06.064].

Measurement of the Ξb− and Ωb− Baryon Lifetimes

CARBONE, ANGELO;GALLI, DOMENICO;MOGGI, NICCOLO';MUSSINI, MANUEL;PATRIGNANI, CLAUDIA;PERAZZINI, STEFANO;VAGNONI, VINCENZO MARIA;ZANGOLI, MARIA;
2014

Abstract

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/ψ Ξ− and Ωb− → J/ψ Ω− decay modes and their lifetimes measured to be τ(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
R. Aaij, B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, J. Albrecht, et al. (2014). Measurement of the Ξb− and Ωb− Baryon Lifetimes. PHYSICS LETTERS. SECTION B, 736, 154-162 [10.1016/j.physletb.2014.06.064].
R. Aaij; B. Adeva; M. Adinolfi; A. Affolder; Z. Ajaltouni; J. Albrecht; F. Alessio; M. Alexander; S. Ali; G. Alkhazov; P. Alvarez Cartelle; A.A. Alves...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/320114
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