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Chinese Physics C> 1992, Vol. 16> Issue(1) : 38-43 

Analysis of the Width of the Momentum Distribution of He Fragments Produced in Relativistic 16O+Em Collisions

  •  Physics Department Shanxi Normal University,Shanxi,Linfen 0410041 Institute of High Energy Physics,Academia Sinica,Beijing 100039

  • The increase of the width of the momentum distribution of He fragments with decreasing He-multiplicity in relativistic 16O fragmentation at 2GeV/N to 200GeV/N is analyzed.The result shows that with decreasing He-multiplicity the surface-excitation energy of the projectile-spectator increases,which is the reason of the increase of the width of the momentum distribution.Although the incident energy changes the projectile-spectator obtains the same excitation energy under the same geometric conditions.This gives the limiting fragmentation behavior of the He-multiplicity distribution.
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    [1] H. H. Heckman, Phys. Rev., C40(1989), 66.[2] Chao Wei-qin, Gao Chong-shou and Zhu Yun-Lun, Nucl. Phys., A514(1990), 734.[3] 卢希庭、胡济民，《原子核物理学》科学出版社出版，p. 51,[4] J. P. Bonder et al., Nucl. Phys., A443(1985), 321; A444(1985), 460.[5]G. D. Westfall et al., Phys. Rev., C17(1978), 1368.

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GAO Huai-Lin, ZHOU Zuo-Xu and ZHAO Wei-Qin. Analysis of the Width of the Momentum Distribution of He Fragments Produced in Relativistic 16O+Em Collisions[J]. Chinese Physics C, 1992, 16(1): 38-43.
GAO Huai-Lin, ZHOU Zuo-Xu and ZHAO Wei-Qin. Analysis of the Width of the Momentum Distribution of He Fragments Produced in Relativistic 16O+Em Collisions[J]. Chinese Physics C, 1992, 16(1): 38-43. shu
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Received: 1900-01-01
Revised: 1900-01-01
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Analysis of the Width of the Momentum Distribution of He Fragments Produced in Relativistic 16O+Em Collisions

    Corresponding author: GAO Huai-Lin,
  • Physics Department Shanxi Normal University,Shanxi,Linfen 0410041 Institute of High Energy Physics,Academia Sinica,Beijing 100039
  • Received Date: 1900-01-01
  • Accepted Date: 1900-01-01
  • Available Online: 1992-01-05

Abstract: The increase of the width of the momentum distribution of He fragments with decreasing He-multiplicity in relativistic 16O fragmentation at 2GeV/N to 200GeV/N is analyzed.The result shows that with decreasing He-multiplicity the surface-excitation energy of the projectile-spectator increases,which is the reason of the increase of the width of the momentum distribution.Although the incident energy changes the projectile-spectator obtains the same excitation energy under the same geometric conditions.This gives the limiting fragmentation behavior of the He-multiplicity distribution.

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