Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/131182
Title: | Dalitz plot analysis of ηc → K+K−η and ηc → K+K−π0 in two-photon interactions |
Author: | Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 16-Jun-2014 |
Publisher: | American Physical Society |
Abstract: | We study the processes γ γ → K + K − η and γ γ → K + K − π 0 using a data sample of 519 fb − 1 recorded with the BABAR detector operating at the SLAC PEP-II asymmetric-energy e + e − collider at center-of-mass energies at and near the Υ ( n S ) ( n = 2 , 3 , 4 ) resonances. We observe η c → K + K − π 0 and η c → K + K − η decays, measure their relative branching fraction, and perform a Dalitz plot analysis for each decay. We observe the K ∗ 0 ( 1430 ) → K η decay and measure its branching fraction relative to the K π decay mode to be R ( K ∗ 0 ( 1430 ) ) = B ( K ∗ 0 ( 1430 ) → K η ) B ( K ∗ 0 ( 1430 ) → K π ) = 0.092 ± 0.02 5 + 0.010 − 0.025 . The η c → K + K − η and K ∗ 0 ( 1430 ) → K η results correspond to the first observations of these channels. The data also show evidence for η c ( 2 S ) → K + K − π 0 and first evidence for η c ( 2 S ) → K + K − η . |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.89.112004 |
It is part of: | Physical Review D, 2014, vol. 89, num. 11, p. 112004 |
URI: | http://hdl.handle.net/2445/131182 |
Related resource: | https://doi.org/10.1103/PhysRevD.89.112004 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
649214.pdf | 1.54 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.