Measurement of the Ξ[superscript −][subscript b] and Ω[superscript −][subscript b] Baryon Lifetimes
Name
1-s2.0-S0370269314004699-main.pdf
Size
716.68 KB
Format
Adobe PDF
Checksum (MD5)
81a536d86339187dfea0a4f2ae28c681
Author(s)
Counts, Ian Thomas Hunt
Ilten, Philip J
Williams, Michael
Date Issued
June 2014
Journal
Physics Letters B
Publisher
Elsevier BV
Citation
Aaij, R., et al. “Measurement of the Ξ[superscript −][subscript b] and Ω[superscript −][subscript b] Baryon Lifetimes.” Physics Letters B, vol. 736, Sept. 2014, pp. 154–62. © 2014 The Authors
Version
Final published version
Abstract
Using a data sample of pp collisions corresponding to an integrated luminosity of 3 fb[supercript -1], the Ξ[superscript -][subscript b] and Ω[supercript -][subscript b] baryons are reconstructed in the Ξ[superscript -][subscript b] → J/ψΞ[superscript -] and Ω[superscript -][subscript b] → J/ψΩ[superscript -] decay modes and their lifetimes measured to be τ(Ξ[superscript -][subscript b]) = 1.55[subscript -0.09][superscript +0.10](stat)±0.03(syst)ps, τ(Ω[superscript -][subscript b]) = 1.54[subscript -0.21][subscript +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
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Attribution 4.0 International (CC BY 4.0)
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1016/J.PHYSLETB.2014.06.064
