Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/131600
Title: | Observation and polarization measurement of B0→a1(1260)+a1(1260)− decay |
Author: | Garra Ticó, Jordi Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 20-Nov-2009 |
Publisher: | American Physical Society |
Abstract: | We present measurements of the branching fraction B and longitudinal polarization fraction f L for B 0 → a 1 ( 1260 ) + a 1 ( 1260 ) − decays, with a 1 ( 1260 ) ± → π − π + π ± . The data sample, collected with the BABAR detector at the SLAC National Accelerator Laboratory, represents 465 × 10 6 produced B ¯¯¯ B pairs. We measure B ( B 0 → a 1 ( 1260 ) + a 1 ( 1260 ) − ) × [ B ( a 1 ( 1260 ) + → π − π + π + ) ] 2 = ( 11.8 ± 2.6 ± 1.6 ) × 10 − 6 and f L = 0.31 ± 0.22 ± 0.10 , where the first uncertainty is statistical and the second systematic. The decay mode is measured with a significance of 5.0 standard deviations including systematic uncertainties. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.80.092007 |
It is part of: | Physical Review D, 2009, vol. 80, num. 9, p. 092007 |
URI: | http://hdl.handle.net/2445/131600 |
Related resource: | https://doi.org/10.1103/PhysRevD.80.092007 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
577731.pdf | 169.96 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.