par Donskov, Sergey;Inyakin, Alexandre A.V.;Kachanov, Vasilij V.A.;Kakauridze, D.B. D.B.;Khaustov, G.;Kulik, Alexei A.V.;Lednev, Andrey;Prokoshkin, Yu Y.D.;Rodnov, Yu Y.V.;Sadovsky, Sergey S.A.;Singovsky, Alexandre A.V.;Mikhailov, Yu;Sugonyaev, Valentine;Binon, Freddy 
;Lagnaux, Jean-Pierre ;Stroot, Jean-Pierre ;Gouanère, M.;Peigneux, Jean Pierre;Duteil, P.
Référence Lettere al Nuovo Cimento, 39, 3, page (41-48)
Publication Publié, 1984-01
;Lagnaux, Jean-Pierre ;Stroot, Jean-Pierre ;Gouanère, M.;Peigneux, Jean Pierre;Duteil, P.Référence Lettere al Nuovo Cimento, 39, 3, page (41-48)
Publication Publié, 1984-01
Article révisé par les pairs
| Résumé : | In a high-statistics experiment (200 events/nanobarn) performed at the 70 GeV IHEP accelerator, a new dipion resonance has been observed in π-p collisions at 38 GeV/c momentum. The gamma-rays in reaction π-p → M0n, M0 → π0π0 → 4γ have been detected in the hodoscope spectrometer GAMS-2000. The new meson, r(2510), has a mass (2510±30) MeV/c2, a width (240±60) MeV/c2 and spin-parity J PC=6++. The production cross-section of the f, h and r mesons decreases exponentially with spin like exp [-0.9 J]. © 1984 Società Italiana di Fisica. |
