Title

Investigation of semileptonic b meson decays to p-wave charm mesons

Document Type

Article

Publication Date

1-1-1998

Abstract

We have studied semileptonic B meson decays with a p-wave charm meson in the final state using 3.29×10 BB events collected with the CLEO II detector at the Cornell Electron-Positron Storage Ring.We find a value for the exclusive semileptonic product branching fraction B(B →D ℓ ν ℓ)B(D →D*+π ) = (0.373±0.085±0.052±0.024)% and an upper limit for B(B →D ℓ-ν ℓ)B(D →D*+π )<0.16% (90% C.L.).Furthermore, we present the first measurement of the q spectrum for B →D ℓ ν ℓ. © 1998 The American Physical Society. 6 ¯ − 0 − ¯ 0 − − *0 ¯ *0 − 2 − 0 − ¯ 1 1 2 2 1

Publication Name

Physical Review Letters

Volume Number

80

First Page

4127

Last Page

4131

Issue Number

19

DOI

10.1103/PhysRevLett.80.4127

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