New measurement of B -> D*pi branching fractions
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Issue Date
1998-03Author
Ammar, Raymond G.
Baringer, Philip S.
Bean, Alice
Besson, David Zeke
Coppage, Don
Darling, C.
Davis, Robin E. P.
Hancock, N.
Kotov, S.
Kravchenko, I.
Kwak, Nowhan
Publisher
AMERICAN PHYSICAL SOC
Type
Article
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The decays Y(4S) --> <B(B)over bar>, followed by B --> D*pi and D* --> D pi, permit reconstruction of all kinematic quantities that describe the sequence without reconstruction of the D, with reasonably low backgrounds. Using an integrated e(+)e(-) luminosity of 3.1 fb(-1) accumulated at the Y(4S) by the CLEO-II Il detector, we report measurements of B((B) over bar(0) --> D*(+)pi(-)) = (2.81 +/- 0.11 +/- 0.21 +/- 0.05) x 10(-3) and B(B- --> D*(0) pi(-)) = (4.34 +/- 0.33 +/- 0.34 +/- 0.18) x 10(-3).
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Citation
Brandenburg, G, Briere, RA, et al. New measurement of B -> D*pi branching fractions. PHYSICAL REVIEW LETTERS. March 1998. 80(13) : 2762-2766
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