par Alde, D.;Binon, Freddy ; [et al.]
Référence Physics letters. Section B, 397, 3-4, page (350-356)
Publication Publié, 1997-04
Article révisé par les pairs
Résumé : The effective mass spectrum of π0 pairs produced in pp central collisions (pp → pfπ0π0ps) at 450 GeV/c, √s = 29 GeV, below 1 GeV differs from that observed in peripheral charge exchange reactions. In particular, there is a large number of events between ππ-threshold and 1 GeV, that interfere with f0(980) destructively. The possible existence of a broad S-wave state is suggested. © 1997 Published by Elsevier Science B.V.