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《中国物理C》（英文）编辑部
2024年10月30日
Chinese Physics C> 2002, Vol. 26> Issue(1) : 40-45 

Production of Helium Projectile Fragments in 16O-Emulsion Collisions at 60 A GeV

  •  Department of Physics, Shanxi Normal University, Linfen 041004, China

  • Production of helium projectile fragments in 16O-emulsion interactions at 60 A GeV is investigated. The total charge changing and partial production cross-sections are measured experimentally on the basis of helium multiplicity. The multiplicity distribution of helium projectile fragments obeys a KNO scaling. In the peripheral collision of 16O at 60 A GeV in nuclear emulsion, the production of target fragments depends on the multiplicity of helium projectile fragments linearly. The averge multiplicity of target fragments decreases with the increasing of the number of helium projectile fragments which can be well expliained by the model of participant-spectator (the nuclear geometric model) of nucleus-nucleus interactions.
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    [1] . Kim Y D, Tsang M B, Gebelke C K et al. Phys. Rev. Lett., 1989, 63: 4942. Blumenfeld X, Colonna N, Roussel-Chomaz P et al. Phys. Rev. Lett., 1991, 66: 5763. Piasecki E, Bresson S, Lott B. et al. Phys. Rev. Lett., 1991, 66: 12814. Bowman D R, Peaslee G F,Souza R T et al. Phys. Rev. Lett., 1991, 67: 1527 5. Oligive C A, Adloff J C, Begemann-Blaich M et al. Phys. Rev. Lett., 1991, 67: 12146. Hagel K, Gonin M, Wada R et al. Phys. Rev. Lett., 1992, 68: 21417. Hubele J, Krentz P, Alodf J C et al. Z. Phys., 1991, A340: 2638. Hubele J, Krentz P, Lindenstruth V et al. Phys. Rev., 1992, C46: R15779. Aggarwal M M, Bhalla K B, Das G et al. Phys. Rev., 1983, C27: 64010. Aggarwal M M, Jain P L. Phys. Rev., 1985, C31: 123311. Golde M, Singh G, Jain P L et al. Z. Phys., 1993, 344: 29112. Cherry M L, Dabrowska A, Delnes-Jonese P et al. Z. Phys., 1997, C73: 44913. Sengupta K, Singh G, Jain P L. Phys. Lett., 1989, B222: 30114. Singh G, Jain P L. Z. Phys., 1984, A348: 99 15. Adamovich M I, Aggarwal M M, Arora R et al(EMU01 Collab.). Phys. Rev., 1989, C40: 6616. Adamovich M I, Aggarwal M M, Alexandrov Y A et al(EMU01 Collab.). Phys. Lett., 1994, B338: 397; 1997, B390: 44517. Koba Z, Nielsen B, Olsesn P. Nucl. Phys., 1972, B40: 31718. Bhalla K B et al. Nucl. Phys., 1981, A367:44619. Krasnov S A et al. J. of Nucl. Phys., 1988, 47: 949 20. ZHANG Dong-Hai, SUN Han-Cheng. Acta Physica Sinca, 2000, 49: 1938(in Chinese)(张东海, 孙汉城. 物理学报, 2000, 49: 1938)21. ZHANG Dong-Hai, SUN Han-Cheng, G. Gharibi, Chinese Physics, 2001, 10: 21 22. ZHANG Dong-Hai, SUN Han-Cheng, HEP NP, 2001, 25: 651(in Chinese)(张东海, 孙汉城. 高能物理与核物理, 2001, 25: 651)

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ZHANG Dong-Hai. Production of Helium Projectile Fragments in 16O-Emulsion Collisions at 60 A GeV[J]. Chinese Physics C, 2002, 26(1): 40-45.
ZHANG Dong-Hai. Production of Helium Projectile Fragments in 16O-Emulsion Collisions at 60 A GeV[J]. Chinese Physics C, 2002, 26(1): 40-45. shu
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Received: 2001-02-15
Revised: 1900-01-01
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Production of Helium Projectile Fragments in 16O-Emulsion Collisions at 60 A GeV

    Corresponding author: ZHANG Dong-Hai,
  • Department of Physics, Shanxi Normal University, Linfen 041004, China
  • Received Date: 2001-02-15
  • Accepted Date: 1900-01-01
  • Available Online: 2002-01-05

Abstract: Production of helium projectile fragments in 16O-emulsion interactions at 60 A GeV is investigated. The total charge changing and partial production cross-sections are measured experimentally on the basis of helium multiplicity. The multiplicity distribution of helium projectile fragments obeys a KNO scaling. In the peripheral collision of 16O at 60 A GeV in nuclear emulsion, the production of target fragments depends on the multiplicity of helium projectile fragments linearly. The averge multiplicity of target fragments decreases with the increasing of the number of helium projectile fragments which can be well expliained by the model of participant-spectator (the nuclear geometric model) of nucleus-nucleus interactions.

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