The cross sections for e+e- --> pi+pi-pi0 and e+e- --> omegapi+pi- have been measured in the 1.35 less-than-or-equal-to square-root s less-than-or-equal-to 2.4 GeV range from 1900 nb-1 collected by DM2 at DCI. The second process proceeds via a resonant state at congruent-to 1660 MeV/c2, congruent-to 280 MeV/c2 wide. The first one is larger than a VDM extrapolation from the omega-phi peaks and, although does not show any clear structure, is compatible with the presence of the above resonance.
MEASUREMENT OF THE E+E--]PI+PI-PI-0 AND E+E--]OMEGA-PI+PI- REACTIONS IN THE ENERGY INTERVAL 1350-2400 MEV RID C-6238-2011
SCHIOPPA, Marco;
1992-01-01
Abstract
The cross sections for e+e- --> pi+pi-pi0 and e+e- --> omegapi+pi- have been measured in the 1.35 less-than-or-equal-to square-root s less-than-or-equal-to 2.4 GeV range from 1900 nb-1 collected by DM2 at DCI. The second process proceeds via a resonant state at congruent-to 1660 MeV/c2, congruent-to 280 MeV/c2 wide. The first one is larger than a VDM extrapolation from the omega-phi peaks and, although does not show any clear structure, is compatible with the presence of the above resonance.File in questo prodotto:
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