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Measurement of the Lambdab0 lifetime in Lambdab0 --> Lambdac+pi- decays in pp collisions at square root of s = 1.96 TeV.

Abstract:

We report a measurement of the lifetime of the Lambda(b)(0) baryon in decays to the Lambda(c)(+)pi(-) final state in a sample corresponding to 1.1 fb(-1) collected in pp collisions at square root of s = 1.96 TeV by the CDF II detector at the Tevatron collider. Using a sample of about 3000 fully reconstructed Lambda(b)(0) events we measure tau(Lambda(b)(0)) = 1.401 +/- 0.046(stat) +/- 0.035(syst) ps (corresponding to ctau(Lambda(b)(0)) = 420.1 +/- 13.7(stat) +/- 10.6(syst) microm, where c is t...

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Journal:
Phys Rev Lett More from this journal
Volume:
104
Issue:
10
Pages:
102002
Publication date:
2010-03-12
EISSN:
1079-7114
Language:
English
Pubs id:
pubs:124679
UUID:
uuid:89f81a88-f4bf-4692-957d-eebe10b73288
Local pid:
pubs:124679
Source identifiers:
124679
Deposit date:
2012-12-19

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