Observation and Polarization Measurement of B0 --> a1(1260) a1(1260)- Decay
Abstract
The authors present measurements of the branching fraction {Beta} and longitudinal polarization fraction f{sub L} for B{sup 0} {yields} a{sub 1}(1260){sup +} a{sub 1}(1260){sup -} decays, with a{sub 1}(1260){sup {+-}} {yields} {pi}{sup -}{pi}{sup +}{pi}{sup {+-}}. The data sample, collected with the BABAR detector at the SLAC National Accelerator Laboratory, represents 465 x 10{sup 6} produced B{bar B} pairs. They measure {Beta}(B{sup 0} {yields} a{sub 1}(1260){sup +} a{sub 1}(1260){sup -}) x [{Beta}(a{sub 1}(1260){sup +} {yields} {pi}{sup -}{pi}{sup +}{pi}{sup +})]{sup 2} = (11.8 {+-} 2.6 {+-} 1.6) x 10{sup -6} and f{sub 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.
- Authors:
- Publication Date:
- Research Org.:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 962105
- Report Number(s):
- SLAC-PUB-13709
arXiv:0907.1776; TRN: US0902853
- DOE Contract Number:
- AC02-76SF00515
- Resource Type:
- Journal Article
- Journal Name:
- Submitted to Physical Review Letters
- Additional Journal Information:
- Journal Name: Submitted to Physical Review Letters
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS; DECAY; FERMILAB ACCELERATOR; POLARIZATION; STANFORD LINEAR ACCELERATOR CENTER; Experiment-HEP,ACCPHY, HEPEX
Citation Formats
Aubert, : B. Observation and Polarization Measurement of B0 --> a1(1260) a1(1260)- Decay. United States: N. p., 2009.
Web.
Aubert, : B. Observation and Polarization Measurement of B0 --> a1(1260) a1(1260)- Decay. United States.
Aubert, : B. 2009.
"Observation and Polarization Measurement of B0 --> a1(1260) a1(1260)- Decay". United States. https://www.osti.gov/servlets/purl/962105.
@article{osti_962105,
title = {Observation and Polarization Measurement of B0 --> a1(1260) a1(1260)- Decay},
author = {Aubert, : B},
abstractNote = {The authors present measurements of the branching fraction {Beta} and longitudinal polarization fraction f{sub L} for B{sup 0} {yields} a{sub 1}(1260){sup +} a{sub 1}(1260){sup -} decays, with a{sub 1}(1260){sup {+-}} {yields} {pi}{sup -}{pi}{sup +}{pi}{sup {+-}}. The data sample, collected with the BABAR detector at the SLAC National Accelerator Laboratory, represents 465 x 10{sup 6} produced B{bar B} pairs. They measure {Beta}(B{sup 0} {yields} a{sub 1}(1260){sup +} a{sub 1}(1260){sup -}) x [{Beta}(a{sub 1}(1260){sup +} {yields} {pi}{sup -}{pi}{sup +}{pi}{sup +})]{sup 2} = (11.8 {+-} 2.6 {+-} 1.6) x 10{sup -6} and f{sub 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.},
doi = {},
url = {https://www.osti.gov/biblio/962105},
journal = {Submitted to Physical Review Letters},
number = ,
volume = ,
place = {United States},
year = {Mon Aug 03 00:00:00 EDT 2009},
month = {Mon Aug 03 00:00:00 EDT 2009}
}