Title
Measurement of the <tex>$\Lambda_{b}^{0}$</tex> lifetime in <tex>$\Lambda_{b}^{0}\rightarrow J/\psi\Lambda^{0}$</tex> in <tex>$p\overline{p}$</tex> collisions at <tex>$\sqrt{s}$</tex>=1.96 TeV
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
New York, N.Y. ,
Subject
Physics
Source (journal)
Physical review letters. - New York, N.Y.
Volume/pages
98(2007) :12 , p. 122001,1-122001,7
ISSN
0031-9007
ISI
000245135400013
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
We report a measurement of the Λb0 lifetime in the exclusive decay Λb0→J/ψΛ0 in pp&#773; collisions at √s=1.96   TeV using an integrated luminosity of 1.0  fb-1 of data collected by the CDF II detector at the Fermilab Tevatron. Using fully reconstructed decays, we measure τ(Λb0)=1.593-0.078+0.083(stat)±0.033(syst)  ps. This is the single most precise measurement of τ(Λb0) and is 3.2σ higher than the current world average.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/efee59/4b41b4d2.pdf
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