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Measurement of the relative branching fraction of upsilon(4S) to charged and neutral B-meson pairs.

Abstract:

We analyze 9.7x10(6) B_B pairs recorded with the CLEO detector to determine the production ratio of charged to neutral B-meson pairs produced at the Upsilon(4S) resonance. We measure the rates for B0-->J/psiK((*)0) and B+-->J/psiK((*)+) decays and use the world-average B-meson lifetime ratio to extract the relative widths f(+-) / f(00) = gamma(Upsilon(4S)-->B+B-) / gamma(Upsilon(4S)-->B0 B-0)) = 1.04+/-0.07(stat)+/-0.04(syst). With the assumption that f(+-)+f(00) = 1, we obtain f(...

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Publication status:
Published

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Publisher copy:
10.1103/physrevlett.86.2737

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Journal:
Physical Review Letters More from this journal
Volume:
86
Issue:
13
Pages:
2737-2741
Publication date:
2001-03-01
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Language:
English
Keywords:
Pubs id:
pubs:16608
UUID:
uuid:231070d4-d57c-4f98-ae7f-eaf2e5345bc7
Local pid:
pubs:16608
Source identifiers:
16608
Deposit date:
2012-12-19

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