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Measurement of the Mass and Lifetime of the Xi C+

PL FRABETTI,HWK CHEUNG,JP CUMALAT,C DALLAPICCOLA,JF GINKEL,SV GREENE,WE JOHNS,MS NEHRING,JN BUTLER,S CIHANGIR,I GAINES,L GARREN,PH GARBINCIUS,SA GOURLAY,DJ HARDING, P KASPER,A KREYMER,P LEBRUN,S SHUKLA,S BIANCO,FL FABBRI,S SARWAR,A ZALLO,R CULBERTSON,RW GARDNER,R GREENE,J WISS,G ALIMONTI,G BELLINI,B CACCIANIGA,L CINQUINI,M DICORATO,M GIAMMARCHI,P INZANI,F LEVERARO,S MALVEZZI,D MENASCE,E MERONI,L MORONI,D PEDRINI,L PERASSO,A SALA,S SALA,D TORRETTA,M VITTONE,D BUCHHOLZ,D CLAES,B GOBBI, B OREILLY,JM BISHOP,NM CASON,CJ KENNEDY,GN KIM,TF LIN,DL PUSELJIC,RC RUCHTI,WD SHEPHARD,JA SWIATEK,ZY WU,V ARENA,G BOCA,C CASTOLDI,R DIAFERIA,G GIANINI,SP RATTI,C RICCARDI,P VITULO,A LOPEZ,GP GRIM,VS PAOLONE,PM YAGER,JR WILSON,PD SHELDON,F DAVENPORT,JF FILASETTA,GR BLACKETT,M PISHARODY,T HANDLER,BG CHEON,JS KANG,KY KIM

Physical review letters（1993）

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摘要
Measurements of the mass and lifetime of the XI(c)+ decaying into XI- pi+pi+ are presented. The data were accumulated by the Fermilab high-energy photoproduction experiment E687. The mass of the XI(c)+ is measured to be 2464.4+/-2.0+/-1.4 MeV/c2 and the lifetime is measured to be 0.41(-0.08)+0.11+/-0.02 ps.
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