MULTIPLICITY AND PSEUDORAPIDITY DISTRIBUTIONS OF CHARGED-PARTICLES FROM S-32 INDUCED HEAVY-ION INTERACTIONS AT 200-A GEV

被引：34

作者：

ALBRECHT, R

AWES, TC

BAKTASH, C

BECKMANN, P

BERGER, F

BLOOMER, MA

BOCK, D

BOCK, R

CLAESSON, G

CLEWING, G

DRAGON, L

EKLUND, A

FERGUSON, R

FRANZ, A

GARPMAN, SIA

GLASOW, R

GUSTAFSSON, HA

GUTBROD, HH

HOLKER, G

IDH, J

JACOBS, P

KAMPERT, KH

KOLB, BW

LOHNER, H

LUND, I

OBENSHAIN, FE

OSKARSSON, A

OTTERLUND, I

PEITZMANN, T

PLASIL, F

POSKANZER, AM

PURSCHKE, ML

RITTER, HG

ROTERS, B

SAINI, S

SANTO, R

SCHMIDT, HR

SORENSEN, SP

STEINHAEUSER, P

STEFFENS, K

STENLUND, E

STUKEN, D

YOUNG, GR

机构：

[1] OAK RIDGE NATL LAB,OAK RIDGE,TN 37831

[2] UNIV MUNSTER,INST KERNPHYS,W-4400 MUNSTER,GERMANY

[3] LAWRENCE BERKELEY LAB,DIV NUCL SCI,BERKELEY,CA 94720

[4] UNIV LUND,DEPT PHYS,DIV COSM & SUBATOM PHYS,S-22362 LUND,SWEDEN

[5] UNIV TENNESSEE,KNOXVILLE,TN 37996

[6] UNIV GRONINGEN,KERNFYS VERSNELCER INST,9747 AA GRONINGEN,NETHERLANDS

来源：

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1992年 / 55卷 / 04期

关键词：

D O I：

10.1007/BF01561291

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：

Multiplicity and pseudorapidity distributions have been measured for S-32 + Al, Cu, Ag and Au at 200 A GeV. The widths of the pseudorapidity distributions increase from central to peripheral collisions. The main contribution is assumed to come from the increasing fraction of charged particles stemming from the fragmentation of the target for peripheral collisions as compared to central collisions. On the average 170-180 charged particles per unit of pseudorapidity are attained for the most central S-32 + Au events at the maximum of the distribution. The target dependence of the yield of charged particles for central collisions is investigated. In the target rapidity region the yield is directly proportional to the target mass. The transverse energy per charged particle has been studied as a function of centrality and pseudorapidity. The experimental results are compared to the results from the Monte-Carlo model VENUS 3.11 which includes rescattering among secondaries. A comparison between different centrality triggers is made.

引用

页码：539 / 548

页数：10

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