Hadronic expansion dynamics in central Pb+Pb collisions at 158 GeV per nucleon

被引：175

作者：

Appelshauser, H ^{[1
]}

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

机构：

[1] Univ Heidelberg, Inst Phys, Heidelberg, Germany

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

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

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

[5] CERN, Geneva, Switzerland

[6] Inst Nucl Phys, Krakow, Poland

[7] Gesell Schwerionenforsch GmbH, Darmstadt, Germany

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

[9] Joint Inst Nucl Res, Dubna, Russia

[10] Univ Frankfurt, Fachbereich Phys, Frankfurt, Germany

[11] Univ Calif Los Angeles, Los Angeles, CA 90095 USA

[12] Univ Marburg, Fachbereich Phys, Marburg, Germany

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

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

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

[16] Univ Washington, Phys Nucl Lab, Seattle, WA 98195 USA

[17] Yale Univ, New Haven, CT 06520 USA

[18] Rudjer Boskovic Inst, Zagreb, Croatia

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

来源：

EUROPEAN PHYSICAL JOURNAL C | 1998年 / 2卷 / 04期

关键词：

D O I：

10.1007/s100520050168

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：

Two-particle correlation functions of negative hadrons over wide phase space, and transverse mass spectra of negative hadrons and deuterons near mid-rapidity have been measured in central Pb+Pb collisions at 158 GeV per nucleon by the NA49 experiment at the CERN SPS. A novel Coulomb correction procedure for the negative two-particle correlations is employed making use of the measured oppositely charged particle correlation. Within an expanding source scenario these results are used to extract the dynamic characteristics of the hadronic source, resolving the ambiguities between the temperature and transverse expansion velocity of the source; that are unavoidable when single and two particle spectra are analysed separately. The source shape, the total duration of the source expansion, the duration of particle emission, the freeze-out temperature and the longitudinal and transverse expansion velocities are deduced.

引用

页码：661 / 670

页数：10

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