The semileptonic decay fraction ofB-mesons in the light of interfering amplitudes |
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| Authors: | Honscheid K Schubert K R Waldi R |
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| Institution: | 1.Deutsches Elektronen-Synchrotron DESY, D-22603, Hamburg, Germany
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| Abstract: | Consequences of the interference between spectator amplitudes for the lifetimes and semileptonic decay fractions ofB
0 andB
+ mesons are discussed. Extracting these amplitudes from a fit to 11 exclusive hadronicB decay fractions we finda
1=1.05±0.03±0.10,a
2=+0.227±0.012±0.022, an inclusive semileptonic decay fraction of (11.2±0.5±1.7)%, and a lifetime ratio  (B
+)/(B
0)=0.83±0.01±0.01.Supported under DOE grant number DE-FG02-91-ER40690 |
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| Keywords: | |
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