par Alde, D.;Knapp, Edward E.A.;Binon, Freddy 
;Bricman, Charles ;Stroot, Jean-Pierre ;Donskov, Sergey;Inyakin, Alexandre A.V.;Kachanov, Vasilij V.A.;Khaustov, G.;Kulik, Alexei A.V.;Lednev, Andrey;Prokoshkin, Yu Y.D.;Rodnov, Yu Y.V.;Sadovsky, Sergey S.A.;Samoylenko, Vladimir;Shagin, Petr P.M.;Shtannikov, A.V. A.V.;Singovsky, Alexandre A.V.;Sugonyaev, Valentine;Gouanère, M.;Peigneux, Jean Pierre
Référence Physics letters. Section B, 216, 3-4, page (447-450)
Publication Publié, 1989-01
;Bricman, Charles ;Stroot, Jean-Pierre ;Donskov, Sergey;Inyakin, Alexandre A.V.;Kachanov, Vasilij V.A.;Khaustov, G.;Kulik, Alexei A.V.;Lednev, Andrey;Prokoshkin, Yu Y.D.;Rodnov, Yu Y.V.;Sadovsky, Sergey S.A.;Samoylenko, Vladimir;Shagin, Petr P.M.;Shtannikov, A.V. A.V.;Singovsky, Alexandre A.V.;Sugonyaev, Valentine;Gouanère, M.;Peigneux, Jean PierreRéférence Physics letters. Section B, 216, 3-4, page (447-450)
Publication Publié, 1989-01
Article révisé par les pairs
| Résumé : | Evidence for a new meson decaying into ηη′ has been found in 38 GeV π-p charge-exchange interactions. The mass and the width of this meson are (1917 ± 15) MeV and (90-50+35) MeV, respectively. Possible spin and parity assignments are JPC = 0++, 1-+ or 2++, isospin and G-parity are IG = 0+. The t-dependence of the differential cross section follows an exponential behaviour exp(bt with a small slope: b = (2±1) (GeV/c)-2.Upper limits on its decay into ππ, ηη and KK exotic interpretation of this meson. © 1989. |
