CaltechAUTHORS
Published March 3, 2003 | Version Published
Journal Article Open

Measurement of the B⁰ → J/ψπ⁺π⁻ Branching Fraction

Creators

Abstract

We present a measurement of the branching fraction for the decay of the neutral B meson into the final state J/ψπ+π−. The data set contains approximately 56×106 B¯B pairs produced at the Υ(4S) resonance and recorded with the BABAR detector at the PEP-II asymmetric-energy e+e− storage ring. The result of this analysis is B(B0→J/ψπ+π−)=(4.6±0.7±0.6)×10−5, where the first error is statistical and the second is systematic. In addition, we measure B(B0→J/ψρ0)=(1.6±0.6±0.4)×10−5.

Additional Information

©2003 American Physical Society. Received 7 September 2002. Published 5 March 2003. We are grateful for the excellent luminosity and machine conditions provided by our PEP-II colleagues and for the substantial dedicated effort from the computing organizations that support BABAR. The collaborating institutions thank SLAC for its support and kind hospitality. This work is supported by DOE and NSF (USA), NSERC (Canada), IHEP (China), CEA and CNRS-IN2P3 (France), BMBF and DFG (Germany), INFN (Italy), NFR (Norway), MIST (Russia), and PPARC (United Kingdom). Individuals have received support from the A. P. Sloan Foundation, Research Corporation, and Alexander von Humboldt Foundation.

Attached Files

Published - 1303616.pdf

Files

1303616.pdf

Files (275.9 kB)

Name Size
md5:e62317f0ec4680a252220022d9cd742a
275.9 kB Preview Download

Additional details

Additional titles

Alternative title
Measurement of the B 0 → J / ψ π + π − Branching Fraction
Alternative title
Measurement of the B-0 -> J/psi pi(+)pi(-) branching fraction

Identifiers

Eprint ID
100558
DOI
10.1103/PhysRevLett.90.091801
Resolver ID
CaltechAUTHORS:20200108-115437637

Related works

Describes
10.1103/PhysRevLett.90.091801 (DOI)

Funding

Stanford Linear Accelerator Center (SLAC)
U.S. Department of Energy (DOE)
NSF
INSERC (Canada)
IHEP (China)
CEA (France)
CNRS-IN2P3 (France)
BMBF (Germany)
DFG (Germany)
INFN (Italy)
NFR (Norway)
MIST (Russia)
PPARC (UK)
A.P. Sloan Foundation
Research Corporation
Alexander von Humboldt Foundation

Dates

Created
2020-01-08
Created from EPrint's datestamp field
Updated
2021-11-16
Created from EPrint's last_modified field