Photoproduction of π + Mesons in He 4
作者： P. E. Argan , G. Bendiscioli , A. Piazzoli , V. Bisi , M. I. Ferrero
DOI: 10.1103/PHYSREVLETT.9.405
关键词:
摘要: An analysis of charged pion photo-production on He/sup 4/ is made to investigate the existence H/sup states. A diffusion cloud chamber filled with was exposed a 1-Bev gamma beam and /sup +/ yields pi + n 3/ even ts were selected, sample 96 events analyzed. The results indicate reaction STAH/sup 4/!; 4/! Y (3.5 7) Mev, frequency comparable photoproduction without formation (H/sup 4/!. (H.D.R.)
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