INTERACTION MEAN FREE PATH OF He PROJECTILE FRAGMENTS FROM 16O-EM COLLISION AT 60 A GeV

doi:10.1088/1009-1963/10/1/305

中国物理B ›› 2001, Vol. 10 ›› Issue (1): 21-26.doi: 10.1088/1009-1963/10/1/305

INTERACTION MEAN FREE PATH OF He PROJECTILE FRAGMENTS FROM ¹⁶O-EM COLLISION AT 60 A GeV

孙汉城¹, 张东海²

(1)China Institute of Atomic Energy, Beijing 102413, China; (2)Departement of Physics, Shanxi Normal University, Linfen 041004, China; China Institute of Atomic Energy, Beijing 102413, China; Department of Physics, Royal Institute of Technology, Stockholm 104-05, Sweden

收稿日期:2000-04-06 修回日期:2000-08-04 出版日期:2001-01-15 发布日期:2005-07-11
基金资助:
Project supported by the Shanxi Provincial Natural Science Foundation for Youths (Grant No. 991004) and Shanxi Provincial Foundation for Returnees.

INTERACTION MEAN FREE PATH OF He PROJECTILE FRAGMENTS FROM ¹⁶O-EM COLLISION AT 60 A GeV

Zhang Dong-hai (张东海)^abc, Sun Han-cheng (孙汉城)^b, G. GHARIBI^c

^a Departement of Physics, Shanxi Normal University, Linfen 041004, China; ^b China Institute of Atomic Energy, Beijing 102413, China;^c Department of Physics, Royal Institute of Technology, Stockholm 104-05, Sweden

Received:2000-04-06 Revised:2000-08-04 Online:2001-01-15 Published:2005-07-11
Supported by:
Project supported by the Shanxi Provincial Natural Science Foundation for Youths (Grant No. 991004) and Shanxi Provincial Foundation for Returnees.

摘要/Abstract

摘要： The interaction mean free path of He projectile fragments, produced by the collisions of ¹⁶O at 60 A GeV in a nuclear emulsion, has been investigated. In the present analysis, 1555 He projectile fragments, giving rise to 320 secondary interactions, have been used. At a level of 3% a very weak signal of anomalons is observed, which comes mainly from the 3×He channel.

Abstract: The interaction mean free path of He projectile fragments, produced by the collisions of ¹⁶O at 60 A GeV in a nuclear emulsion, has been investigated. In the present analysis, 1555 He projectile fragments, giving rise to 320 secondary interactions, have been used. At a level of 3% a very weak signal of anomalons is observed, which comes mainly from the 3×He channel.

Key words: mean free path, projectile fragments, anomalon

中图分类号: (Projectile and target fragmentation)

25.70.Mn

25.70.Pq (Multifragment emission and correlations) 27.10.+h (A ≤ 5) 27.20.+n (6 ≤ A ≤ 19)

张东海, 孙汉城. INTERACTION MEAN FREE PATH OF He PROJECTILE FRAGMENTS FROM ¹⁶O-EM COLLISION AT 60 A GeV[J]. 中国物理B, 2001, 10(1): 21-26.

Zhang Dong-hai (张东海), Sun Han-cheng (孙汉城), G. GHARIBI. INTERACTION MEAN FREE PATH OF He PROJECTILE FRAGMENTS FROM ¹⁶O-EM COLLISION AT 60 A GeV[J]. Chinese Physics, 2001, 10(1): 21-26.

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INTERACTION MEAN FREE PATH OF He PROJECTILE FRAGMENTS FROM ¹⁶O-EM COLLISION AT 60 A GeV

INTERACTION MEAN FREE PATH OF He PROJECTILE FRAGMENTS FROM ¹⁶O-EM COLLISION AT 60 A GeV

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