FORWARD BARYONS IN RELATIVISTIC NUCLEUS-NUCLEUS COLLISIONS

被引：33

作者：

BARRETTE, J

BELLWIED, R

BRAUNMUNZINGER, P

CLELAND, WE

DAVID, G

DEE, J

FATYGA, M

FOX, D

GREENE, SV

HALL, J

HEMMICK, TK

HEIFETZ, R

HERRMANN, N

HOGUE, RW

INGOLD, G

JAYANANDA, K

KRAUS, D

KUMAR, BS

LISA, M

LISSAUER, D

LLOPE, WJ

LUDLAM, T

MAJKA, R

MAKOWIECKI, D

MARK, SK

MITCHELL, JT

MUTHUSWAMY, M

OBRIEN, E

POLYCHRONAKOS, V

PRUNEAU, C

ROTONDO, F

SANDWEISS, J

SIMON, J

SONNADARA, U

STACHEL, J

TAKAI, H

THROWE, T

WATERS, L

WINTER, C

WOODY, C

WOLF, K

WOLFE, D

ZHANG, Y

机构：

[1] SUNY STONY BROOK, STONY BROOK, NY 11794 USA

[2] UNIV PITTSBURGH, PITTSBURGH, PA 15260 USA

[3] BROOKHAVEN NATL LAB, UPTON, NY 11973 USA

[4] UNIV CALIF LOS ALAMOS SCI LAB, LOS ALAMOS, NM 87545 USA

[5] YALE UNIV, NEW HAVEN, CT 06511 USA

[6] UNIV NEW MEXICO, ALBUQUERQUE, NM 87131 USA

[7] TEL AVIV UNIV, IL-69978 TEL AVIV, ISRAEL

[8] GESELL SCHWERIONENFORSCH GMBH, W-6100 DARMSTADT 11, GERMANY

[9] TEXAS A&M UNIV SYST, COLLEGE STN, TX 77843 USA

来源：

PHYSICAL REVIEW C | 1992年 / 45卷 / 02期

关键词：

D O I：

10.1103/PhysRevC.45.819

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We present the rapidity and transverse momentum distributions of protons and neutrons from collisions between 14.6 GeV/nucleon beams of Si-28 and targets of Al, Cu, and Pb. The data were measured in the forward spectrometer/target calorimeter detectors of the E814 apparatus. The results indicate the existence of two distinct domains, one of beam rapidity projectilelike nucleons, and the second of participant nucleons. From the former, the in-medium inelastic nucleon-nucleon cross section is deduced. It is found to agree, within 10% with the "free" value of 30 mb although under present conditions one of the two colliding nucleons has been struck before with a high probability. We compare with the present data the predictions of a fragmentation model as well as of models dealing explicitly with the heavy-ion collision and particle creation and emission.

引用

页码：819 / 832

页数：14

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