Title
Search for exclusive b→u semileptonic decays of B mesons
Document Type
Article
Publication Date
1-1-1993
Abstract
Using a sample of 935 000 BB̄ pairs collected with the CLEO-II detector at the Cornell Electron Storage Ring, we have obtained upper limits on the branching ratios for the b→ul-ν̄ processes B-→ωl- ν̄, B-→ρ0l-ν̄, and B̄0→ρ+l-ν̄. The combined result using the relationships among the widths for these three modes is B(B-→ρ0l-ν̄)<(1.6-2.7)×10-4 at 90% C.L., where the range of values is due to model dependence of the detection efficiencies. These measurements yield the limits Vub/Vcb<0.08-0.13. © 1993 The American Physical Society.
Recommended Citation
Bean, A.; Gronberg, J.; Kutschke, R.; Menary, S.; Morrison, R. J.; Nelson, H. N.; Richman, J. D.; Tajima, H.; Schmidt, D.; Sperka, D.; Witherell, M. S.; Procario, M.; Yang, S.; Ballest, R.; Daoudi, M.; Ford, W. T.; Johnson, D. R.; Lingel, K.; Lohner, M.; Rankin, P.; Smith, J. G.; Alexander, J. P.; Bebek, C.; Berkelman, K.; Besson, D.; Browder, T. E.; Cassel, D. G.; Cho, H. A.; Coffman, D. M.; Drell, P. S.; and Ehrlich, R., "Search for exclusive b→u semileptonic decays of B mesons" (1993). Physics Faculty Publications. 51.
https://digitalcommons.bowdoin.edu/physics-faculty-publications/51