Numerical analysis of a two-pion correlation function based on a hydrodynamical model

被引：21

作者：

Morita, K ^{[1
]}

Muroya, S

Nakamura, H

Nonaka, C

机构：

[1] Waseda Univ, Dept Phys, Tokyo 1698555, Japan

[2] Tokuyama Womens Coll, Yamaguchi 7458511, Japan

[3] Hiroshima Univ, Dept Phys, Hiroshima 7398526, Japan

来源：

PHYSICAL REVIEW C | 2000年 / 61卷 / 03期

关键词：

D O I：

10.1103/PhysRevC.61.034904

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 will numerically investigate the two-particle correlation function of the CERN-SPS 158A GeV Pb+Pb central collisions in detail based on a (3+1)-dimensional relativistic hydrodynamical model with first order phase transition. We use the Yano-Koonin-Podgoretskii (YKP) parametrization as well as the usual Cartesian parametrization and analyze the pair momentum dependence of the Hanbury Brown-Twiss radii extracted from the parametrizations. We find that the interpretation of the temporal radius parameter as the time duration in the YKP parametrization is not available for the hydrodynamical model where the source became opaque naturally because of expansion and surface dominant freeze-out. Finally, the effect of the phase transition on the source opacity is also discussed.

引用

页数：12

共 50 条

[1] HYDRODYNAMICAL EVOLUTION OF QGP-FLUID WITH PHASE-TRANSITION AND PARTICLE DISTRIBUTION IN HIGH-ENERGY NUCLEAR COLLISIONS [J].

AKASE, Y ;

MIZUTANI, M ;

MUROYA, S ;

YASUDA, M .

PROGRESS OF THEORETICAL PHYSICS, 1991, 85 (02) :305-320

[2] Electromagnetic probes of quark gluon plasma [J].

Alam, J ;

Raha, S ;

Sinha, B .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1996, 273 (5-6) :243-362

[3] TRANSVERSE FLOW EFFECTS ON HIGH-ENERGY PHOTONS EMITTED BY EXPANDING QUARK-GLUON PLASMA [J].

ALAM, JE ;

SRIVASTAVA, DK ;

SINHA, B ;

BASU, DN .

PHYSICAL REVIEW D, 1993, 48 (03) :1117-1131

[4] Hadronic expansion dynamics in central Pb+Pb collisions at 158 GeV per nucleon [J].

Appelshauser, H ;

Bachler, J ;

Bailey, SJ ;

Barnby, LS ;

Bartke, J ;

Barton, RA ;

Bialkowska, H ;

Billmeier, A ;

Blyth, CO ;

Bock, R ;

Bormann, C ;

Brady, FP ;

Brockmann, R ;

Brun, R ;

Buncic, P ;

Caines, HL ;

Cebra, D ;

Cooper, GE ;

Cramer, JG ;

Csato, P ;

Dunn, J ;

Eckardt, V ;

Eckhardt, F ;

Ferguson, MI ;

Ferenc, D ;

Fischer, HG ;

Flierl, D ;

Fodor, Z ;

Foka, P ;

Freund, P ;

Friese, V ;

Fuchs, M ;

Gabler, F ;

Gal, J ;

Gazdzicki, M ;

Gladysz, E ;

Grebieszkow, J ;

Gunther, J ;

Harris, JW ;

Hegyi, S ;

Henkel, T ;

Hill, LA ;

Huang, I ;

Hummler, H ;

Igo, G ;

Irmscher, D ;

Jacobs, P ;

Jones, PG ;

Kadija, K ;

Kolesnikov, VI .

EUROPEAN PHYSICAL JOURNAL C, 1998, 2 (04) :661-670

[5] Probing the equation of state in Au+Au at 11 GeV/nucleon with (3+1)-dimensional hydrodynamics [J].

Arbex, N ;

Ornik, U ;

Plumer, M ;

Weiner, RM .

PHYSICAL REVIEW C, 1997, 55 (02) :860-873

[6] TEMPORAL DEVELOPMENT OF THE PLASMA PHASE-TRANSITION [J].

BERTSCH, G ;

BROWN, GE .

PHYSICAL REVIEW C, 1989, 40 (04) :1830-1832

[7] HIGHLY RELATIVISTIC NUCLEUS-NUCLEUS COLLISIONS - THE CENTRAL RAPIDITY REGION [J].

BJORKEN, JD .

PHYSICAL REVIEW D, 1983, 27 (01) :140-151

[8] EXTRACTING SOURCE PARAMETERS FROM GAUSSIAN FITS TO 2-PARTICLE CORRELATIONS [J].

CHAPMAN, S ;

NIX, JR ;

HEINZ, U .

PHYSICAL REVIEW C, 1995, 52 (05) :2694-2703

[9] NEW CROSS TERM IN THE 2-PARTICLE HANBURY-BROWN-TWISS CORRELATION-FUNCTION IN ULTRARELATIVISTIC HEAVY-ION COLLISIONS [J].

CHAPMAN, S ;

SCOTTO, P ;

HEINZ, U .

PHYSICAL REVIEW LETTERS, 1995, 74 (22) :4400-4403

[10]

Chapman S., 1995, HEAVY ION PHYSICS, V1, P1

← 1 2 3 4 5 →