supported by the National Natural Science Foundation of China (Grant Nos 10475054 and 10675077);the Foundation for Key Program of Ministry of Education of China (Grant No 2 05026);the Natural Science Foundation of Shanxi Province, China(Grant No 200801105);the Shanxi Provincial Foundation for Returned Scholars, China
The properties of the relativistic helium fragments produced in interactions of ^84Kr at 1.8 A GeV and ^197Au at 10.7 A GeV in emulsion are investigated. The experimental results are compared with those obtained from ...