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Recent results from experiment 814 at Brookhaven

Authors :
D. Kraus
O. Dietzsch
Upul Sonnadara
J. Dee
G. E. Diebold
S. Gilbert
N. Xu
C. Pruneau
M. Ghalambor-Dezfuli
R. Lacasse
J. R. Hall
Thomas Michael Cormier
S. K. Mark
G. Wang
B. Shiva Kumar
M.K. Fatyga
Venetios Polychronakos
T. K. Hemmick
S. McCorkle
M. Muthuswamy
G. Ingold
Johanna Stachel
L. Waters
J. V. Germani
J. T. Mitchell
D. Fox
Helio Takai
N. Herrmann
F. S. Rotondo
J. Barrette
C. L. Woody
T. G. Throwe
T. W. Ludlam
Yi Zhang
Z. Zhang
C. Winter
Senta Greene
K. Jayananda
C. Zou
W. J. Llope
E. O'Brien
W. E. Cleland
G. David
Peter Braun-Munzinger
B. Hong
J. Sandweiss
R. D. Majka
D. Lissauer
R. Bellwied
J. Simon-Gillo
N. C. daSilva
E. M. Takagui
K.L. Wolf
D. Wolfe
Source :
Nuclear Physics A. 544:137-152
Publication Year :
1992
Publisher :
Elsevier BV, 1992.

Abstract

Recent results from the E814 collaboration are presented for reactions of 14.6 GeV/nucleon 28 Si projectiles with targets of Al, Cu, and Pb. This includes transverse energy distributions over the full solid angle and the distribution of charged particle multiplicity in the forward hemisphere. Furthermore we present recent results on transverse momentum spectra and rapidity distributions for protons and discuss them in terms of stopping and/or transparency. A fraction of nucleons emerges at beam rapidity, even for the most central collisions. These ‘punch-through’ distributions are shown to yield information on the in-medium nucleon-nucleon cross section. Finally, we discuss antiproton production at 0° as a function of event centrality to shed some light on possible reabsorption.

Details

ISSN :
03759474
Volume :
544
Database :
OpenAIRE
Journal :
Nuclear Physics A
Accession number :
edsair.doi...........74d78dd481ae682c95a02ba23941ec87
Full Text :
https://doi.org/10.1016/0375-9474(92)90570-a