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http://hdl.handle.net/2445/131410
Title: | Measurement of the D+ → π+π0 and D+ → K+π0 branching fractions |
Author: | Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 2006 |
Publisher: | American Physical Society |
Abstract: | We present measurements of the branching fractions for the Cabbibo suppressed decays D + → π + π 0 and D + → K + π 0 based on a data sample corresponding to an integrated luminosity of 124.3 fb − 1 . The data were taken with the BABAR detector at the PEP-II B Factory operating on and near the Υ ( 4 S ) resonance. We find B ( D + → π + π 0 ) = ( 1.25 ± 0.10 ± 0.09 ± 0.04 ) × 10 − 3 and B ( D + → K + π 0 ) = ( 2.52 ± 0.47 ± 0.25 ± 0.08 ) × 10 − 4 , where the first uncertainty is statistical, the second systematic and the last error is due to the uncertainties in the absolute branching fraction scale for D + mesons. This represents the first observation of the doubly Cabibbo-suppressed D + → K + π 0 decay mode and a new measurement of the D + → π + π 0 branching fraction. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.74.011107 |
It is part of: | Physical Review D, 2006, vol. 74, num. 1, p. 011107(R) |
URI: | http://hdl.handle.net/2445/131410 |
Related resource: | https://doi.org/10.1103/PhysRevD.74.011107 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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