Published January 5, 2015 | Version v1
Journal article

Search for the process e+e→η(958) with the CMD-3 detector

  • 1. Novosibirsk State University, Novosibirsk, 630090 (Russian Federation)
  • 2. Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090 (Russian Federation)
  • 3. University of Tokyo, Department of Physics, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033 (Japan)
  • 4. Novosibirsk State Technical University, Novosibirsk, 630092 (Russian Federation)

Description

A search for the process e+e→η(958) in the π+πη→π+πγγ final state has been performed with the CMD-3 detector at the VEPP-2000 e+e collider. Using an integrated luminosity of 2.69 pb−1 collected at the center-of-mass energy Ec.m.=957.68 MeV we set an upper limit for the product of electronic width and branching fractions Γη(958)→e+e⋅Bη(958)→π+πη⋅Bη→γγ<0.00041 eV at 90% C.L

Availability note (English)

Available from http://dx.doi.org/10.1016/j.physletb.2014.11.056

Additional details

Identifiers

DOI
10.1016/j.physletb.2014.11.056;
arXiv
arXiv:1409.1664v3;
PII
S0370-2693(14)00866-1;

Publishing Information

Journal Title
Physics Letters. Section B
Journal Volume
740
Journal Page Range
p. 273-277
ISSN
0370-2693
CODEN
PYLBAJ

Optional Information

Copyright
Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.