THE INFLUENCE OF RESONANCE DECAYS ON THE PT SPECTRA FROM HEAVY-ION COLLISIONS

被引：108

作者：

SOLLFRANK, J

KOCH, P

HEINZ, U

机构：

[1] Institut für Theoretische Physik, Universität Regensburg, W-8400 Regensburg

来源：

PHYSICS LETTERS B | 1990年 / 252卷 / 02期

关键词：

D O I：

10.1016/0370-2693(90)90870-C

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The influence of resonance decays on hadronic momentum spectra is studied quantitatively within a simple thermodynamical model. We derive expressions for the rapidity and transverse momentum spectra of particles originating from two- and three-body decay of resonances with specified momentum distribution. We compare the results for a thermally and chemically equilibrated hadron gas without transverse expansion with data from the NA35 Collaboration for pion, kaon, proton and LAMDA p(T) spectra from 200 A GeV S+S collisions and find excellent agreement for T = 200 MeV and mu-b = 100-200 MeV.

引用

页码：256 / 264

页数：9

共 20 条

[1]

ANISOVICH VV, 1985, QUARK MODEL HIGH ENE

[2]

BARTKE J, IN PRESS Z PHYS C

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

BJORKEN, JD .

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

[4] DELTAS IN HADRON GAS [J].

DENISENKO, KG ;

MROWCZYNSKI, S .

PHYSICAL REVIEW C, 1987, 35 (05) :1932-1935

[5]

GERBER P, 1990, BUTP9016 PREPR

[6] ON THE MEAN FREE-PATH OF PIONS IN HOT MATTER [J].

GOITY, JL ;

LEUTWYLER, H .

PHYSICS LETTERS B, 1989, 228 (04) :517-522

[7]

GORENSTEIN M, 1990, TPR9015 U REG PREPR

[8]

HAGEDORN R, 1968, NUOVO CIMENTO, V6, P169

[9]

HAGEDORN R, 1983, RIV NUOVO CIMENTO 3, V6

[10]

HAGEDORN R, 1980, RELATIVISTIC KINEMAT

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