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http://hdl.handle.net/2445/131404
Title: | Dalitz plot analysis of the decay B± → K±K±K∓ |
Author: | Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 7-Aug-2006 |
Publisher: | American Physical Society |
Abstract: | We analyze the three-body charmless decay B ± → K ± K ± K ∓ using a sample of 226.0 ± 2.5 million B ¯¯¯ B pairs collected by the BABAR detector. We measure the total branching fraction and C P asymmetry to be B = ( 35.2 ± 0.9 ± 1.6 ) × 10 − 6 and A C P = ( − 1.7 ± 2.6 ± 1.5 ) % . We fit the Dalitz plot distribution using an isobar model and measure the magnitudes and phases of the decay coefficients. We find no evidence of C P violation for the individual components of the isobar model. The decay dynamics is dominated by the K + K − S -wave, for which we perform a partial-wave analysis in the region m ( K + K − ) < 2 GeV / c 2 . Significant production of the f 0 ( 980 ) resonance, and of a spin zero state near 1.55 GeV / c 2 are required in the isobar model description of the data. The partial-wave analysis supports this observation. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.74.032003 |
It is part of: | Physical Review D, 2006, vol. 74, num. 3, p. 032003 |
URI: | http://hdl.handle.net/2445/131404 |
Related resource: | https://doi.org/10.1103/PhysRevD.74.032003 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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