@article{7d828aaf422048728c0414fc0b92fba1,
title = "Precision measurement of the ratio of the Lambda(0)(b) to (B)over-bar(0) lifetimes",
abstract = "The LHCb measurement of the lifetime ratio of the Lambda(0)(b) baryon to the (B) over bar (0) meson is updated using data corresponding to an integrated luminosity of 3.0 fb(-1) collected using 7 and 8 TeV centre-of-mass energy pp collisions at the LHC. The decay modes used are Lambda(0)(b) -> J/psi pK(-) and (B) over bar (0) -> J/psi pi K-+(-), where the pi K-+(-) mass is consistent with that of the (K) over bar*(0)(892) meson. The lifetime ratio is determined with unprecedented precision to be 0.974 +/- 0.006 +/- 0.004, where the first uncertainty is statistical and the second systematic. This result is in agreement with original theoretical predictions based on the heavy quark expansion. Using the current world average of the (B) over bar (0) lifetime, the Lambda(0)(b) lifetime is found to be 1.479 +/- 0.009 +/- 0.010 ps. (C) 2014 The Authors. Published by Elsevier B.V.",
keywords = "INCLUSIVE WEAK DECAYS, DISCARDING 1/N(C), HADRON LIFETIMES, BEAUTY HADRONS, BARYON, QCD, LATTICE, RULE",
author = "R. Aaij and B. Adeva and M. Adinolfi and A. Affolder and Z. Ajaltouni and J. Albrecht and F. Alessio and M. Alexander and S. Ali and G. Alkhazov and {Alvarez Cartelle}, P. and Alves, {A. A.} and S. Amato and S. Amerio and Y. Amhis and L. Anderlini and J. Anderson and R. Andreassen and M. Andreotti and Andrews, {J. E.} and Appleby, {R. B.} and Gutierrez, {O. Aquines} and F. Archilli and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and M. Baalouch and S. Bachmann and Back, {J. J.} and A. Badalov and V. Balagura and W. Baldini and Barlow, {R. J.} and C. Barschel and S. Barsuk and W. Barter and V. Batozskaya and Th. Bauer and A. Bay and J. Beddow and Laurence Carson and Clarke, {P. E. L.} and Cowan, {G. A.} and Daniel Craik and S. Eisenhardt and Silvia Gambetta and F. Muheim and M. Needham and S. Playfer and {LHCb Collaboration}",
year = "2014",
month = "6",
day = "27",
doi = "10.1016/j.physletb.2014.05.021",
language = "English",
volume = "734",
pages = "122--130",
journal = "Physics Letters B",
issn = "0370-2693",
publisher = "Elsevier B.V.",
}