skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Measurement of the B+- to rho pi0 Branching Fraction and Direct CP Asymmetry

Abstract

The authors present improved measurements of the branching fraction and CP asymmetry for the process B{sup {+-}} {yields} {rho}{sup {+-}}{pi}{sup 0}. The data sample corresponding to 211 fb{sup -1} comprises 232 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric B Factory at SLAC. The yield and CP asymmetry are measured using an extended maximum likelihood fitting method. The branching fraction and Cp asymmetry are found to be {Beta}(B{sup {+-}} {yields} {rho}{sup {+-}}{pi}{sup 0}) = [10.2 {+-} 1.4(stat) {+-} 0.9(syst)] x 10{sup -6} and {Alpha}{sub CP}(B{sup {+-}} {yields} {rho}{sup {+-}}{pi}{sup 0}) = -0.01 {+-} 0.13(stat) {+-} 0.02(syst).

Authors:
Publication Date:
Research Org.:
Stanford Linear Accelerator Center (SLAC)
Sponsoring Org.:
USDOE
OSTI Identifier:
897730
Report Number(s):
SLAC-PUB-12285
hep-ex/0701035; TRN: US0701505
DOE Contract Number:  
AC02-76SF00515
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review D - Rapid Communications
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ASYMMETRY; STANFORD LINEAR ACCELERATOR CENTER; PHYSICS; Experiment-HEP,HEPEX

Citation Formats

Aubert, B. Measurement of the B+- to rho pi0 Branching Fraction and Direct CP Asymmetry. United States: N. p., 2007. Web. doi:10.1103/PhysRevD.76.011103.
Aubert, B. Measurement of the B+- to rho pi0 Branching Fraction and Direct CP Asymmetry. United States. doi:10.1103/PhysRevD.76.011103.
Aubert, B. Thu . "Measurement of the B+- to rho pi0 Branching Fraction and Direct CP Asymmetry". United States. doi:10.1103/PhysRevD.76.011103. https://www.osti.gov/servlets/purl/897730.
@article{osti_897730,
title = {Measurement of the B+- to rho pi0 Branching Fraction and Direct CP Asymmetry},
author = {Aubert, B.},
abstractNote = {The authors present improved measurements of the branching fraction and CP asymmetry for the process B{sup {+-}} {yields} {rho}{sup {+-}}{pi}{sup 0}. The data sample corresponding to 211 fb{sup -1} comprises 232 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric B Factory at SLAC. The yield and CP asymmetry are measured using an extended maximum likelihood fitting method. The branching fraction and Cp asymmetry are found to be {Beta}(B{sup {+-}} {yields} {rho}{sup {+-}}{pi}{sup 0}) = [10.2 {+-} 1.4(stat) {+-} 0.9(syst)] x 10{sup -6} and {Alpha}{sub CP}(B{sup {+-}} {yields} {rho}{sup {+-}}{pi}{sup 0}) = -0.01 {+-} 0.13(stat) {+-} 0.02(syst).},
doi = {10.1103/PhysRevD.76.011103},
journal = {Physical Review D - Rapid Communications},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 25 00:00:00 EST 2007},
month = {Thu Jan 25 00:00:00 EST 2007}
}