Measurement of the Lambda(0)(b) lifetime using semileptonic decays
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
20/05/2014
20/05/2014
02/11/2007
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Resumo |
We report a measurement of the Lambda(0)(b) lifetime using a sample corresponding to 1.3 fb(-1) of data collected by the D0 experiment in 2002-2006 during run II of the Fermilab Tevatron collider. The Lambda(0)(b) baryon is reconstructed via the decay Lambda(0)(b)->mu(nu) over bar Lambda X-+(c). Using 4437 +/- 329 signal candidates, we measure the Lambda(0)(b) lifetime to be tau(Lambda(0)(b))=1.290(-0.110)(+0.119)(stat)(-0.091)(+0.087)(syst) ps, which is among the most precise measurements in semileptonic Lambda(0)(b) decays. This result is in good agreement with the world average value. |
Formato |
7 |
Identificador |
http://dx.doi.org/10.1103/PhysRevLett.99.182001 Physical Review Letters. College Pk: Amer Physical Soc, v. 99, n. 18, 7 p., 2007. 0031-9007 http://hdl.handle.net/11449/23605 10.1103/PhysRevLett.99.182001 WOS:000250644000014 WOS000250644000014.pdf |
Idioma(s) |
eng |
Publicador |
Amer Physical Soc |
Relação |
Physical Review Letters |
Direitos |
closedAccess |
Tipo |
info:eu-repo/semantics/article |