Abstract
Exclusive semileptonic B decays with a D*+ meson in the final state have been studied using the ARGUS detector at the DORIS II storage ring. The branching ratio for the decay {Mathematical expression}, where ℓ- is either e- or μ-, has been measured to be (5.2±0.5±0.6)%. A significant rate for the decay {Mathematical expression} has been observed. From an angular analysis of the cascade {Mathematical expression} the forward-backward asymmetry AFB and the D*+ polarization parameter α have been determined to be AFB=0.20±0.08±0.06 and α=1.1±0.4±0.2.
Original language | English |
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Pages (from-to) | 533-540 |
Number of pages | 8 |
Journal | Zeitschrift für Physik C Particles and Fields |
Volume | 57 |
Issue number | 4 |
DOIs | |
State | Published - Dec 1993 |
Externally published | Yes |