Measurement of the Lifetime of the B-c(+/-) Meson in the Semileptonic Decay Channel
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
30/09/2013
20/05/2014
30/09/2013
20/05/2014
06/03/2009
|
Resumo |
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Using approximately 1.3 fb(-1) of data collected by the D0 detector between 2002 and 2006, we measure the lifetime of the B-c(+/-) meson in the B-c(+/-)-> J/psi mu(+/-)+X final state. A simultaneous unbinned likelihood fit to the J/psi+mu invariant mass and lifetime distributions yields a signal of 881 +/- 80(stat) candidates and a lifetime measurement of tau(B-c(+/-))=0.448(-0.036)(+0.038)(stat)+/- 0.032(syst) ps. |
Formato |
7 |
Identificador |
http://dx.doi.org/10.1103/PhysRevLett.102.092001 Physical Review Letters. College Pk: Amer Physical Soc, v. 102, n. 9, p. 7, 2009. 0031-9007 http://hdl.handle.net/11449/24515 10.1103/PhysRevLett.102.092001 WOS:000263911900014 WOS000263911900014.pdf |
Idioma(s) |
eng |
Publicador |
Amer Physical Soc |
Relação |
Physical Review Letters |
Direitos |
closedAccess |
Tipo |
info:eu-repo/semantics/article |