NUCLEAR-INTERACTIONS FOR 15 GEV-C PROTONS AND PIONS UNDER RANDOM AND CHANNELING CONDITIONS IN GERMANIUM SINGLE-CRYSTALS

被引:10
作者
ANDERSEN, SK
ESBENSEN, H
FICH, O
GOLOVCHENKO, JA
NIELSEN, H
SCHIOTT, HE
UGGERHOJ, E
VRAASTTHOMSEN, C
CHARPAK, G
PETERSEN, G
SAULI, F
PONPON, JP
SIFFERT, R
机构
[1] CERN,CH-1211 GENEVA 23,SWITZERLAND
[2] CTR RECH NUCL,F-67037 STRASBOURG,FRANCE
关键词
D O I
10.1016/0550-3213(78)90496-0
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
Strong directional effects for nuclear-reaction probabilities have been observed when 15 GeV/c protons and pions are incident on a 4.2 mm Ge single crystal. In the random situation, our measurements are in agreement with Glauber's theory of diffraction scattering and with published particle-production data. When protons are incident in an aligned direction, the nuclear-reaction probabilities fall off very drastically but in a way which is in agreement with standard channeling theory; for aligned negative pions where a simple channeling theory is lacking, there is some experimental indication that nuclear-reaction probabilities are enhanced compared to the corresponding random rates, an indication which is supported by detailed computer-simulation studies. © 1978.
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页码:1 / 21
页数:21
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