Published February 22, 2010 | Version v1
Journal article Metadata-only

Study of J/ψ decays into ηK*0K-bar*0

Creators

  • 1. Institute of High Energy Physics, Beijing 100049 (China)
  • 2. Peking University, Beijing 100871 (China)
  • 3. University of Science and Technology of China, Hefei 230026 (China)
  • 4. Henan Normal University, Xinxiang 453002 (China)
  • 5. Zhejiang University, Hangzhou 310028 (China)
  • 6. Tsinghua University, Beijing 100084 (China)

Description

We report the first observation of J/ψ→ηK*0K-bar*0 decay in a J/ψ sample of 58 million events collected with the BESII detector. The branching fraction is determined to be (1.15±0.13±0.22)x10-3. The selected signal event sample is further used to search for the Y(2175) resonance through J/ψ→ηY(2175), Y(2175)→K*0K-bar*0. No evidence of a signal is seen. An upper limit of Br(J/ψ→ηY(2175)).Br(Y(2175)→K*0K-bar*0)<2.52x10-4 is set at the 90% confidence level.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.physletb.2010.01.063

Additional details

Identifiers

DOI
10.1016/j.physletb.2010.01.063;
arXiv
arXiv:0909.2087v2;
PII
S0370-2693(10)00134-6;

Publishing Information

Journal Title
Physics Letters. Section B
Journal Volume
685
Journal Issue
1
Journal Page Range
p. 27-32
ISSN
0370-2693
CODEN
PYLBAJ

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
41090057
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
BRANCHING RATIO; J PSI-3097 MESONS; PARTICLE DECAY; PARTICLE IDENTIFICATION; RESONANCE PARTICLES; SIGNALS
Descriptors DEC
BOSONS; CHARMONIUM; DECAY; DIMENSIONLESS NUMBERS; ELEMENTARY PARTICLES; HADRONS; MESONS; QUARKONIUM; VECTOR MESONS

Optional Information

Copyright
Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.