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Title
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Measurement of the lifetime in decays in collisions at =1.96 TeV
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Author
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Institution/Organisation
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CDF Collaboration
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Abstract
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| We report a measurement of the lifetime of the Λb0 baryon in decays to the Λc+π- final state in a sample corresponding to 1.1 fb-1 collected in pp̅ collisions at √s=1.96 TeV by the CDF II detector at the Tevatron collider. Using a sample of about 3000 fully reconstructed Λb0 events we measure τ(Λb0)=1.401±0.046(stat)±0.035(syst) ps (corresponding to cτ(Λb0)=420.1±13.7(stat)±10.6(syst) μm, where c is the speed of light). The ratio of this result and the world average B0 lifetime yields τ(Λb0)/τ(B0)=0.918±0.038 (stat) and (syst), in good agreement with recent theoretical predictions. |
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Language
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English
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Source (journal)
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Physical review letters. - New York, N.Y., 1958, currens
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Publication
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New York, N.Y.
:
American Physical Society
,
2010
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ISSN
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0031-9007
[print]
1079-7114
[online]
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DOI
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10.1103/PHYSREVLETT.104.102002
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Volume/pages
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104
:10
(2010)
, p. 10202,1-10202,8
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Article Reference
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102002
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ISI
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000275543500011
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Medium
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E-only publicatie
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Full text (Publisher's DOI)
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Full text (open access)
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