• [1]

    Matsui T, Satz H. Phys. Lett,1986, B178:416-4222 NA38 Collaboration. Nucl. Phys.,1994, A566:371C-374C,77C-86C; NA38 Collaboration. Nucl. Phys.,1989,A498: 249C-260C3 NA."i8 Collaboration. Phys. Lett.,1989, B220: (3):471-478; NA38 Collaboration. Phys. Lett.,1991, B262:(2-3 ) : 362-3684 Blaiwt J P, Ollitrault J Y. Phys. Ixtt.,1996, 77(9):1703-1706; NA50 Collaboration. Nucl. Phys.,1996, A610:4040-417C5 Karsch F, Mehr M T, Satz H. Z. Phys.,1988, C37:617--6226 LIU Bo. SHEN PengNian, JIANG HuanQing. Phys. Rev,1997. 055(6) : 3021-30257 LIU fin, SHFN PengNian, JIANG HuanQing. HEPNP ( in Chinese ) , 1998 , 22 : ( 6 ) : 556-563(刘波,沈彭年,姜焕清.高能物理与核物理,1998,22(6):556-563)8 GAO Sang, LIU Bo, ZHAO Weiqn. Phys. Lett,,1996 , B378 : 23-289 LIU Bo. SHEN PengNian, JIANG HuanQing. Phys. Lett.,1998,8437:231-23510 Nagamiya S. Nucl. Phys.,1994, AS66:287C-298C11 Martin A. Phys. Lett.,1986. 870(2):192-19412 Eichten E, Gottfried K, Kirnshita T et al. Phys. Rev.,1978, D17(11):3090-311713 Jaonhs S, Olsson M G, Suchyta C. Phys. Rev,1986, D33(11):3338-334814 Particle Data Group. Eur. Phys. J.,1998, 03(1-4):1-794