Projectile spectator proton production in 84Kr- emulsion interactions at 1.7 A GeV

  • The multiplicity distribution of projectile protons and multiplicity correlations between black particles, grey particles, shower particles, compound particles, heavily ionized track particles, projectile helium fragments and projectile spectator protons in 84Kr-emulsion collisions at 1.7 A GeV are investigated. It is found that the projectile spectator proton multiplicity distribution becomes broader with increasing target mass. The average multiplicity of shower particles and compound particles strongly depends on the number of projectile spectator protons, but the average multiplicity of black particles, grey particles and heavily ionized track particles weakly depends on the number of projectile spectator protons. The average multiplicity of projectile helium fragments increases linearly with increasing numbers of projectile spectator protons. Finally, the multiplicity distribution of projectile spectator protons obeys a KNO type of scaling law.
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  • [1] Bondarenko R A, Gulamov K G, Gulyamov U G, Chernov G M. Sov. J. Nucl. Phys., 1983, 38: 9032 Chernov G M, Gulamov K G, Gulyamov U G et al. Nucl. Phys. A, 1984, 412: 5343 Andreeva N P, Anzon Z V, Bubnov V I et al. Sov. J. Nucl. Phys., 1988, 47: 1024 Basova E S, Navotny V Sh, Petrov N V et al. Phys. Atom. Nucl., 1997, 60: 16505 Tariq M, Zafar M, Tufail A, Ahmad S. Int. J. Mod. Phys. E, 1995, 4: 3476 LIU Fu-Hu. Chin. J. Phys., 2003, 41: 4867 Fakhraddin S, Rahim M A. Phys. Scr., 2008, 78: 0151018 Rahim M A, Fakhraddin S. Nucl. Phys. A, 2009, 831: 399 Firu E, Bradnova V, Haiduc Met al. E-print: nucl-ex/1002. 1566, 201010 Powell P L, Fowler P H. The Study of Elementary Particles by Photographic Method. Oxford: Pergamon, 1959, 45011 Koba Z, Neilsen H B, Olesen P. Nucl. Phys. B, 1972, 40: 317
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BAI Cai-Yan and ZHANG Dong-Hai. Projectile spectator proton production in 84Kr- emulsion interactions at 1.7 A GeV[J]. Chinese Physics C, 2011, 35(5): 436-440. doi: 10.1088/1674-1137/35/5/005
BAI Cai-Yan and ZHANG Dong-Hai. Projectile spectator proton production in 84Kr- emulsion interactions at 1.7 A GeV[J]. Chinese Physics C, 2011, 35(5): 436-440.  doi: 10.1088/1674-1137/35/5/005 shu
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Received: 2010-06-22
Revised: 2010-11-16
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Projectile spectator proton production in 84Kr- emulsion interactions at 1.7 A GeV

Abstract: The multiplicity distribution of projectile protons and multiplicity correlations between black particles, grey particles, shower particles, compound particles, heavily ionized track particles, projectile helium fragments and projectile spectator protons in 84Kr-emulsion collisions at 1.7 A GeV are investigated. It is found that the projectile spectator proton multiplicity distribution becomes broader with increasing target mass. The average multiplicity of shower particles and compound particles strongly depends on the number of projectile spectator protons, but the average multiplicity of black particles, grey particles and heavily ionized track particles weakly depends on the number of projectile spectator protons. The average multiplicity of projectile helium fragments increases linearly with increasing numbers of projectile spectator protons. Finally, the multiplicity distribution of projectile spectator protons obeys a KNO type of scaling law.

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