Published November 1996 | Version v1
Journal article

The controversy in the γγ→ρρ process: potential scattering or qqqq resonance?

  • 1. Institut Jozef Stefan, Ljubljana (Slovenia)
  • 2. Univ. of Ljubljana (Slovenia). Fac. of Math. and Phys.

Description

The γγ→ρ0ρ0→4π reaction shows a broad peak at 1.5 GeV in the (JP, Jz)=(2+, 2) channel which has no counterpart in the ρ+ρ- channel. This ''resonance'' is considered as a candidate for a qqqq state in the ''s-channel''. We show, however, that it can also be explained by potential scattering of ρ0ρ0 via the σ- exchange in the ''t-channel''. (orig.). With 3 figs

Additional details

Publishing Information

Journal Title
Zeitschrift fuer Physik. A, Hadrons and Nuclei
Journal Volume
356
Journal Issue
2
Journal Page Range
p. 187-191.
ISSN
0939-7922
CODEN
ZPAHEX