Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/131527
Title: | Dalitz plot analysis of the decay B0(¯¯¯B0)→K±π∓π0 |
Author: | Garra Ticó, Jordi Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 12-Sep-2008 |
Publisher: | American Physical Society |
Abstract: | We report a Dalitz-plot analysis of the charmless hadronic decays of neutral B mesons to K ± π ∓ π 0 . With a sample of ( 231.8 ± 2.6 ) × 10 6 Υ ( 4 S ) → B ¯¯¯ B decays collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC, we measure the magnitudes and phases of the intermediate resonant and nonresonant amplitudes for B 0 and ¯¯¯ B 0 decays and determine the corresponding C P -averaged branching fractions and charge asymmetries. The inclusive branching fraction and C P -violating charge asymmetry are measured to be B ( B 0 → K + π − π 0 ) = ( 35.7 + 2.6 − 1.5 ± 2.2 ) × 10 − 6 and A C P = − 0.030 + 0.045 − 0.051 ± 0.055 where the first errors are statistical and the second systematic. We observe the decay B 0 → K * 0 ( 892 ) π 0 with the branching fraction B ( B 0 → K * 0 ( 892 ) π 0 ) = ( 3.6 + 0.7 − 0.8 ± 0.4 ) × 10 − 6 . This measurement differs from zero by 5.6 standard deviations (including the systematic uncertainties). The selected sample also contains B 0 → ¯¯¯ D 0 π 0 decays where ¯¯¯ D 0 → K + π − , and we measure B ( B 0 → ¯¯¯ D 0 π 0 ) = ( 2.93 ± 0.17 ± 0.18 ) × 10 − 4 . |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.78.052005 |
It is part of: | Physical Review D, 2008, vol. 78, p. 052005 |
URI: | http://hdl.handle.net/2445/131527 |
Related resource: | https://doi.org/10.1103/PhysRevD.78.052005 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
577700.pdf | 2.46 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.