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Title: | Measurement of the absolute branching fractions B → Dπ, D*π, D**π with a missing mass method |
Author: | Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 21-Dec-2006 |
Publisher: | American Physical Society |
Abstract: | We present branching fraction measurements of charged and neutral B decays to D π − , D ∗ π − , and " D ** " π − with a missing mass method, based on a sample of 231 × 10 6 Υ ( 4 S ) → B ¯¯¯ B pairs collected by the BABAR detector at the PEP-II e + e − collider. One of the B mesons is fully reconstructed and the other one decays to a reconstructed charged π and a companion charmed meson identified by its recoil mass, inferred by kinematics. Here " D ** " refers to the sum of all the nonstrange charm meson states with masses in the range 2.2 - 2.8 GeV / c 2 . We measure the branching fractions: B ( B − → D 0 π − ) = ( 4.49 ± 0.21 ± 0.23 ) × 10 − 3 , B ( B − → D * 0 π − ) = ( 5.13 ± 0.22 ± 0.28 ) × 10 − 3 , B ( B − → " D ** 0 " π − ) = ( 5.50 ± 0.52 ± 1.04 ) × 10 − 3 , B ( ¯¯¯ B 0 → D + π − ) = ( 3.03 ± 0.23 ± 0.23 ) × 10 − 3 , B ( ¯¯¯ B 0 → D * + π − ) = ( 2.99 ± 0.23 ± 0.24 ) × 10 − 3 , B ( ¯¯¯ B 0 → " D ** + " π − ) = ( 2.34 ± 0.65 ± 0.88 ) × 10 − 3 , and their ratios. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.74.111102 |
It is part of: | Physical Review D, 2006, vol. 74, num. 11, p. 111102(R) |
URI: | http://hdl.handle.net/2445/131425 |
Related resource: | https://doi.org/10.1103/PhysRevD.74.111102 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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