Published December 31, 2010 | Version v1
Journal article Metadata-only

Evidence for ψ' Decays into γπ0 and γη

Creators

  • 1. Institute of High Energy Physics, Beijing 100049 (China)

Description

The decays ψ'→γπ0, γη and γη' are studied using data collected with the BESIII detector at the BEPCII e+e- collider. The processes ψ'→γπ0 and ψ'→γη are observed for the first time with signal significances of 4.6σ and 4.3σ, respectively. The branching fractions are determined to be B(ψ'→γπ0)=(1.58±0.40±0.13)x10-6, B(ψ'→γη)=(1.38±0.48±0.09)x10-6, and B(ψ'→γη')=(126±3±8)x10-6, where the first errors are statistical and the second ones systematic.

Additional details

Identifiers

DOI
10.1103/PhysRevLett.105.261801;
arXiv
arXiv:1011.0885v1;

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
105
Journal Issue
26
Journal Page Range
p. 261801-261801.6
ISSN
0031-9007
CODEN
PRLTAO

INIS

Country of Publication
United States
Country of Input or Organization
Syrian Arab Republic
INIS RN
43032550
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
BRANCHING RATIO; DECAY; ELECTRONS; ERRORS; POSITRONS
Descriptors DEC
ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; DIMENSIONLESS NUMBERS; ELEMENTARY PARTICLES; FERMIONS; LEPTONS; MATTER

Optional Information

Notes
(c) 2010 American Institute of Physics
Collaborations
BESIII Collaboration