Hadronic phase space density and chiral symmetry restoration in relativistic heavy ion collisions

被引：19

作者：

Pratt, S ^{[1
]}

Haglin, K

机构：

[1] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

[2] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA

来源：

PHYSICAL REVIEW C | 1999年 / 59卷 / 06期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevC.59.3304

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：

The effect of altered hadron masses is studied for its effect with regard to final-state hadronic observables. It is shown that the final phase space densities of pions and kaons, which can be inferred experimentally, are sensitive to in-medium properties of the excited matter at earlier stages of the collision, but that the sensitivity is significantly moderated by interactions that change the effective numbers of pions and kaons during the latter part of the collision. [S0556-2813(99)07105-8].

引用

页码：3304 / 3308

页数：5

共 19 条

[1] Antiproton production in 11.5A GeV/c Au+Pb nucleus-nucleus collisions [J].

Armstrong, TA ;

Barish, KN ;

Bennett, MJ ;

Bennett, SJ ;

Chikanian, A ;

Coe, SD ;

Cormier, TM ;

Davies, R ;

DeCataldo, G ;

Dee, P ;

Diebold, GE ;

Dover, CB ;

Fachini, P ;

Finch, LE ;

George, NK ;

Giglietto, N ;

Greene, SV ;

Haridas, P ;

Hill, JC ;

Hirsch, AS ;

Huang, HZ ;

Kim, B ;

Kumar, BS ;

Lajoie, JG ;

Lewis, RA ;

Li, Q ;

Li, Y ;

Libby, B ;

Majka, RD ;

Munhoz, MG ;

Nagle, JL ;

Pless, LA ;

Pope, JK ;

Porile, NT ;

Pruneau, CA ;

Rabin, MSZ ;

Raino, A ;

Reid, JD ;

Rimai, A ;

Rotondo, FS ;

Sandweiss, J ;

Scharenberg, RP ;

Slaughter, RP ;

Slaughter, AJ ;

Smith, GA ;

Spinelli, P ;

Srivastava, BK ;

Tincknell, ML ;

Toothacker, WS ;

VanBuren, G .

PHYSICAL REVIEW LETTERS, 1997, 79 (18) :3351-3354

[2] Observation of octupole structures in radon and radium isotopes and their contrasting behavior at high spin [J].

Cocks, JFC ;

Butler, PA ;

Cann, KJ ;

Greenlees, PT ;

Jones, GD ;

Asztalos, S ;

Bhattacharyya, P ;

Broda, R ;

Clark, RM ;

Deleplanque, MA ;

Diamond, RM ;

Fallon, P ;

Fornal, B ;

Jones, PM ;

Julin, R ;

Lauritsen, T ;

Lee, IY ;

Macchiavelli, AO ;

MacLeod, RW ;

Smith, JF ;

Stephens, FS ;

Zhang, CT .

PHYSICAL REVIEW LETTERS, 1997, 78 (15) :2920-2923

[3] MESON PHASE-SPACE DENSITY IN HEAVY-ION COLLISIONS FROM INTERFEROMETRY [J].

BERTSCH, GF .

PHYSICAL REVIEW LETTERS, 1994, 72 (15) :2349-2350

[4] Thermal and hadrochemical equilibration in nucleus nucleus collisions at the SPS [J].

BraunMunzinger, P ;

Stachel, J ;

Wessels, JP ;

Xu, N .

PHYSICS LETTERS B, 1996, 365 (1-4) :1-6

[5] SCALING EFFECTIVE LAGRANGIANS IN A DENSE MEDIUM [J].

BROWN, GE ;

RHO, M .

PHYSICAL REVIEW LETTERS, 1991, 66 (21) :2720-2723

[6]

FLAMINIO V, 1984, 0184 CERNHERA

[7] LOW-PT PION ENHANCEMENT FROM PARTIAL THERMALIZATION IN NUCLEAR COLLISIONS [J].

GAVIN, S ;

RUUSKANEN, PV .

PHYSICS LETTERS B, 1991, 262 (2-3) :326-332

[8] Aspects of chiral symmetry [J].

Koch, V .

INTERNATIONAL JOURNAL OF MODERN PHYSICS E, 1997, 6 (02) :203-249

[9] ENHANCEMENT OF LOW-MASS DILEPTONS IN HEAVY-ION COLLISIONS [J].

LI, GQ ;

KO, CM ;

BROWN, GE .

PHYSICAL REVIEW LETTERS, 1995, 75 (22) :4007-4010

[10] Effects of in-medium vector meson masses on low-mass dileptons from SPS heavy-ion collisions [J].

Li, GQ ;

Ko, CM ;

Brown, GE .

NUCLEAR PHYSICS A, 1996, 606 (3-4) :568-606

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