• [1]

    ALEPHCollab,D.Buskulis,etal,Phys.Lett,B292(1992)210.[2]M.Bowler,Phys.Lett.B180(1986)299.[3]XieQn-bing,Chin.J.Phys.Ener.Fort.Phys.Nucl.4(1980)466.[4]ParticleDataGroup,K.Hikasa,etal.ReviewofParticleProperties,Phys.Rev.D45(1992).[5]J.FrederickGilmanandRusselKauffman,Phys.Rev,D36(1987)2761.[6]A.BramonandM.D.Scadron,PhysLett,B234(1990)346.[7]TPC/2-GammaCollab,H.Aiharaetal,Phys,Rev.Lett.64(1990)172.[8]CRSYTALBARRELCollab,C.Amsleretal,Phys.Lett,B294(1992)451.[9]HRSCollab,S.Abachietal,Phys.Rev.Lett.57(1986)1990.[10]DELPAHICollab,P.Abreuetal,Phys.Lett.B298(1993)236.[11]NA22(LEBC-CHS)Collab.N.M.Aguilar-Bebitezetal.Z.Phys,C50(1991)405.[12]MIRABELLECollab,I.V.Ajinenkoetal,Z.Phys,C24(1984)103.[13]MIRABELLECollab.P.V.Chiapnikovnetal.Nucl.Phys.B176(1980)303;Z.Phys,C12(1982)113.[14]NA22-EHSCollab,N.M.Agababyanetal.Z.Phys.C41(1989)539.[15]JADECollab.W.Barteletal,Phys,Lett,B145(198)441;HHSCollab.M.Derricketal,Phys.Lett.B158(1985)519;TPCCollab,H.Aiharaetal.Phys.Rev.Lett,53(1984)2378;CELLOCollab,H.-J.Behrendetal,Z.phys.C46(1990)397.[16]XieQu-bingandLiuXi-ming,Phys.Rev.D38(1983)2169.[17]DELPHICollab,P.Abreuetal,Phys.Lett.B275(1992)231.