Observation of a new Ω∗- at 2.47 GeVc2 in K-p interactions at 11 GeVc☆

D. Aston,N. Awaji, T. Bienz, F. Bird, J. D'Amore, W. Dunwoodie,R. Endorf,K. Fujii,H. Hayashii, S. Iwata,W.B. Johnson,R. Kajikawa, P. Kunz,D. W. G. S. Leith,L. Levinson,T. Matsui,B. T. Meadows, A. Miyamoto,M. Nussbaum, H. Ozaki, C.O. Pak,B. N. Ratcliff,D.C. Schultz,S. L. Shapiro, T. Shimomura, P.K. Sinervo, A. Sugiyama,Shiro Suzuki,G. Tarnopolsky,T. Tauchi,N. Toge, Kumataro Ukai,A. P. Waite, S. H. Williams

Physics Letters B（1988）

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摘要

Abstract Clear evidence is presented for an Ω ∗− resonance of mass 2474±12 MeV c 2 and width 72±33 MeV c 2 in K−p interactions at 11 GeV c . The state is observed in the Ω−π+π− decay mode, and the corresponding inclusive cross section, corrected for Ω − π 0 π 0 decay, is estimated to be 290±90 nb.

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