Study of the Process e+ e- ---> eta gamma in c.m. Energy Range 600-1380 MeV at CMD-2

Preprint

3 April 2001

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ex/0103043

Abstract

The cross section of the process e+ e- ---> eta gamma has been measured in the 600-1380 MeV c.m. energy range with the CMD-2 detector. The following branching ratios have been determined: B(rho ---> eta gamma) = (3.28 +- 0.37 +- 0.23) 10^{-4}, B(omega ---> eta gamma) = (5.10 +- 0.72 +- 0.34) 10^{-4}, B(phi --> eta gamma) = (1.287 +- 0.013 +- 0.063) 10^{-2}. Evidence for the rho'(1450) ---> eta gamma decay has been obtained for the first time.

Keywords

STUDY OF THE PROCESS
ENERGY RANGE
GAMMA DECAY
ETA GAMMA
MEV C.M
RHO
CMD

All Related Versions

Version 1, 2001-03-26, ArXiv
Version 2, 2001-04-03, ArXiv
Version 1, 2003-04-04, ArXiv (Unconfirmed version)
Version 2, 2003-04-05, ArXiv (Unconfirmed version)
Version 3, 2003-04-22, ArXiv (Unconfirmed version)
Published version: Physics Letters B, 509 (3-4), 217.

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