Published April 1, 2004 | Version v1
Report Metadata-only

Study of the decay B0(barB0) --> rho+rho-, and constraints on the CKM angle α

Creators

Description

Using a data sample of 89 million Υ(4S)-->BBbar decays collected with the BaBar detector at the PEP-II asymmetric B Factory at SLAC, we measure the B0(barB0)-->rho+rho- branching fraction as (30+-4 (stat)+-5(syst)) x 10-6 and a longitudinal polarization fraction of fL 0.99+-0.03(stat) +0.04)-0.03(syst). We measure the time-dependent-asymmetry parameters of the longitudinally polarized component of this decay as CL = -0.17+-0.27(stat)+-0.14 (syst) and SL -0.42+-0.42(stat)+-0.14(syst). We present constraints on the CKM angle α

Availability note (English)

Available at http://arxiv.org/abs/hep-ex/0404029

Additional details

Identifiers

arXiv
arXiv:hep-ex/0404029;

Publishing Information

Imprint Pagination
[v p.]
Report number
LBNL--55183

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
35089193
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
ANTI-B NEUTRAL MESONS; ASYMMETRY; B NEUTRAL MESONS; BRANCHING RATIO; PARTICLE DECAY; POLARIZATION; RHO-770 MESONS; TIME DEPENDENCE
Descriptors DEC
ANTIMATTER; ANTIMESONS; ANTIPARTICLES; B MESONS; B NEUTRAL MESONS; BEAUTY MESONS; BEAUTY PARTICLES; BOSONS; DECAY; ELEMENTARY PARTICLES; HADRONS; MATTER; MESONS; PSEUDOSCALAR ANTIMESONS; PSEUDOSCALAR MESONS; VECTOR MESONS

Optional Information

Contract/Grant/Project number
AC03-76SF00098
Funding organization
US Department of Energy (United States)
Secondary number(s)
SLAC-PUB--10399