Properties of l=1 B-1 and B*(2) Mesons
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
20/05/2014
20/05/2014
26/10/2007
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Resumo |
This Letter presents the first strong evidence for the resolution of the excited B mesons B-1 and B-2(*) as two separate states in fully reconstructed decays to B+(*())pi(-). The mass of B-1 is measured to be 5720.6 +/- 2.4 +/- 1.4 MeV/c(2) and the mass difference Delta M between B-2* and B-1 is 26.2 +/- 3.1 +/- 0: 9 MeV/c(2), giving the mass of the B-2* as 5746.8 +/- 2.4 +/- 1.7 MeV/c(2). The production rate for B-1 and B-2* mesons is determined to be a fraction (13.9 +/- 1.9 +/- 3.2)% of the production rate of the B+ meson. |
Formato |
7 |
Identificador |
http://dx.doi.org/10.1103/PhysRevLett.99.172001 Physical Review Letters. College Pk: Amer Physical Soc, v. 99, n. 17, 7 p., 2007. 0031-9007 http://hdl.handle.net/11449/23101 10.1103/PhysRevLett.99.172001 WOS:000250506000019 WOS000250506000019.pdf |
Idioma(s) |
eng |
Publicador |
Amer Physical Soc |
Relação |
Physical Review Letters |
Direitos |
closedAccess |
Tipo |
info:eu-repo/semantics/article |