INELASTIC HADRON-NUCLEUS INTERACTIONS AT 20 AND 37 GEV-C

被引:48
作者
FAESSLER, MA
LYNEN, U
NIEWISCH, J
PIETRZYK, B
POVH, B
SCHRODER, H
GUGELOT, PC
SIEMIARCZUK, T
ZIELINSKI, IP
机构
[1] CERN,CH-1211 GENEVA 23,SWITZERLAND
[2] UNIV VIRGINIA,DEPT PHYS,CHARLOTTESVILLE,VA 22903
[3] UNIV WARSAW,INST NUCL RES,PL-00681 WARSAW,POLAND
关键词
D O I
10.1016/0550-3213(79)90050-6
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
The experiment studies charged particle production for π-, K-, and p interactions on nuclei at 20 and 37 GeV/c at the CERN SPS. A non-magnetic detector, consisting of CsI(Tl) scintillation and lucite Čerenkov counters, distinguishes between fast particles, mainly pions, and slow particles, mainly nucleons, with a cut at velocity β ≈ 0.7. Angular distributions, multiplicity distributions and correlations of slow and fast particles were analysed. It is shown that the measurement of the correlations can provide a critical test for different theoretical models of the hadron-nucleus interaction. At the energies studied so far a systematic deviation from KNO scaling is observed. This gives further support to the standard picture" of the hadron-nucleus interaction and it contrasts with predictions of the coherent-tube model. The regularity observed for the angular distribution of fast secondaries as a function of the number of slow particles can only be explained by combining features predicted by different models. © 1979."
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页码:1 / 22
页数:22
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