We report a measurement of the production ratio of charged and neutral B mesons from Y(4S) decays based on the ratio of efficiency-corrected yields for the charmonium modes J/psiK(+) and J/psiK(s)(0) with 81.9 fb(-1) of data collected with the BABAR detector on the Y(4S) resonance at 10.580 GeV. We find a value of 1.006+/-0.036(stat)+/-0.031(syst) for the ratio R+/0=Gamma(Y(4S)-->B+B-)/Gamma(Y(4S)-->B-0(B) over bar (0)).
Titolo: | Measurement of the B+/B-0 production ratio from the Upsilon(4S) meson using B+-> J/psi K+ and B-0 -> J/psi K-S(0) decays RID A-8798-2012 RID C-5223-2009 RID C-5719-2008 RID D-1055-2009 RID A-2675-2009 | |
Autori: | ||
Data di pubblicazione: | 2004 | |
Rivista: | ||
Digital Object Identifier (DOI): | http://dx.doi.org/10.1103/PhysRevD.69.071101 | |
Handle: | http://hdl.handle.net/11384/4934 | |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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