Two-proton correlations from 158 A GeV Pb+Pb central collisions

被引：24

作者：

Appelshäuser, H

Bächler, J

Bailey, SJ

Barna, D

Barnby, LS

Bartke, J

Barton, RA

Betev, L

Bialkowska, H

Billmeier, A

Blyth, CO

Bock, R

Boimska, B

Bormann, C

Brady, FP

Brockmann, R

Brun, R

Buncic, P

Caines, HL

Carr, LD

Cebra, D

Cooper, GE

Cramer, JG

Cristinziani, M

Csata, P

Dunn, J

Eckardt, V

Eckhardt, F

Ferguson, MI

Fischer, HG

Flierl, D

Fodor, Z

Foka, P

Freund, P

Friese, V

Fuchs, M

Gabler, F

Gal, J

Ganz, R

Gazdzicki, M

Geist, W

Gladysz, E

Grebieszkow, J

Günther, J

Harris, JW

Hegyi, S

Henkel, T

Hill, LA

Hümmler, H

Igo, G

机构：

[1] Inst Phys Nucl, Krakow, Poland

[2] Gesellsch Schwerionenforsch GSI, Darmstadt, Germany

[3] Univ Calif Davis, Davis, CA 95616 USA

[4] Joint Nucl Res Inst, Dubna, Russia

[5] Univ Frankfurt, Fachbereich Phys, D-6000 Frankfurt, Germany

[6] Kent State Univ, Kent, OH 44242 USA

[7] Univ Calif Los Angeles, Los Angeles, CA USA

[8] Univ Marburg, Fachbereich Phys, D-3550 Marburg, Germany

[9] Max Planck Inst Phys, D-80805 Munich, Germany

[10] Warsaw Univ, Inst Phys Expt, Warsaw, Poland

[11] Inst Nucl Studies, PL-00681 Warsaw, Poland

[12] Univ Washington, Inst Phys Expt, Seattle, WA 98195 USA

[13] Yale Univ, New Haven, CT USA

[14] Rudjer Boskovic Inst, Zagreb, Croatia

[15] Univ Athens, Dept Phys, Athens, Greece

[16] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA

[17] Univ Birmingham, Birmingham, W Midlands, England

[18] KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary

[19] CERN, Geneva, Switzerland

[20] Inst Phys, Prague, Czech Republic

来源：

PHYSICS LETTERS B | 1999年 / 467卷 / 1-2期

基金：

匈牙利科学研究基金会; 美国国家科学基金会; 英国工程与自然科学研究理事会;

关键词：

D O I：

10.1016/S0370-2693(99)01152-1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The two-proton correlation function at midrapidity from Pb + Pb central collisions at 158 A GeV has been measured by the NA49 experiment. The results are compared to model predictions from static thermal Gaussian proton source distributions and transport models rqmd and venus. An effective proton source size is determined by minimizing chi(2)/ndf between the correlation functions of the data and those calculated for the Gaussian sources, yielding sigma(eff) = 3.85 +/- 0.15(stat.)(-0.25)(+0.60)(syst.) fm. Both the rqmd and the venus model are consistent with the data within the error in the correlation peak region. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

引用

页码：21 / 28

页数：8

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