RECENT RESULTS FROM FERMILAB EXPERIMENT 760 - CHARMONIUM FORMATION BY P(P)BAR ANNIHILATION

TA ARMSTRONG,D BETTONI,V BHARADWAJ, C BIINO, G BORREANI,DR BROEMMELSIEK, A BUZZO,R CALABRESE,A CECCUCCI, R CESTER, MD CHURCH,P DALPIAZ,PF DALPIAZ, M DAMERI, D DIMITROYANNIS,M FABBRI, JE FAST,S FERRONI,M GEE,CM GINSBURG,KE GOLLWITZER,AA HAHN,MA HASAN,SY HSUEH,RA LEWIS,E LUPPI,M MACRI,AM MAJEWSKA,MA MANDELKERN,F MARCHETTO, M MARINELLI,JL MARQUES,W MARSH,M MARTINI, M MASUZAWA, E MENICHETTI,A MIGLIORI, R MUSSA,S PALESTINI, N PASTRONE,C PATRIGNANI,J PEOPLES, L PESANDO, F PETRUCCI,MG PIA,S PORDES,PA RAPIDIS,RE RAY,JD REID, G RINAUDO,JL ROSEN,A SANTRONI, M SARMIENTO,M SAVRIE,J SCHULTZ,KK SETH,GA SMITH, L TECCHIO,S TOMMASINI, S TROKENHEIM,MF WEBER,SJ WERKEMA,Y ZHANG,JL ZHAO, G ZIOULAS, M ZITO

SOVIET JOURNAL OF NUCLEAR PHYSICS-USSR（1992）

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摘要

A unique method of spectroscopy has been successfully employed by experiment 760 at Fermilab resulting in data of unprecedented accuracy. We present a general survey of the experiment as well as the data results which are presently available from the experiment on reactions of the type ppBAR --> ccBAR. In particular, we report the first measurement of the chi-1 (P-3(1)) width and a dramatically improved measurement of the chi-2 (P-3(2)) width.

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