Measurement of the Λ[superscript 0][subscrip b] lifetime in pp collisions at √s =7 TeV
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13130_2013_Article_6497.pdf
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Author(s)
Apyan, Aram
Bauer, Gerry P.
Busza, Wit
Butz, Erik M.
Cali, Ivan Amos
Chan, Matthew Hans
Dutta, Valentina
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Klute, Markus
Alternative Title
Measurement of the Λ0b lifetime in pp collisions at √s =7 TeV
Date Issued
July 2013
Journal
Journal of High Energy Physics
Publisher
Springer Berlin Heidelberg
Citation
Chatrchyan, S., V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam, T. Bergauer, M. Dragicevic, et al. “Measurement of Lifetime Λ[superscript 0][subscript b] in Pp Collisions at √s =7 TeV.” Journal of High Energy Physics 2013, no. 7 (July 2013).
Version
Final published version
Abstract
A measurement of the Λ[superscript 0][subscript b] lifetime using the decay Λ[superscript 0][subscript b] to → J/ψΛ in protonproton collisions at √s =7 TeV is presented. The data set, corresponding to an integrated luminosity of about 5 fb[superscript −1], was recorded with the CMS experiment at the Large Hadron Collider using triggers that selected dimuon events in the J/ψ mass region. The Λ[superscript 0][subscript b] lifetime is measured to be 1.503 ± 0.052 (stat.) ± 0.031 (syst.) ps.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
https://doi.org/10.1007/JHEP07(2013)163
