Angular distributions of projectile-associated He fragments from Au induced reactions in nuclear emulsions at 10.7 A GeV have been measured with a precision of ±0.1 mrad. Two emission components are indubitably appearing, one representing fragmentation of a fermionic system while the other one exhibits large transverse momentum transfer. Possible explanations for the latter component are discussed.
Bibliographical noteFunding Information:
Financial support from the Swedisch Natural Science Research Council, the International Science Foundation within the Russian Foundation of Fundamental Research, the German Federal Minister of the Research and Technology, the Department of Science and Technology of the Government of India, the National Sci- ence Foundation of China, the Distinguished Teacher Foundation of the State Education Commission of China, the Fok Ying Tung Education, and the US Department of Energy and the National Science Foundation are cordially and gratefully acknowledged.