THE RHO-MESON IN DENSE MATTER AND ITS INFLUENCE ON DILEPTON PRODUCTION-RATES

被引：78

作者：

CHANFRAY, G ^{[1
]}

SCHUCK, P ^{[1
]}

机构：

[1] UNIV GRENOBLE 1,INST SCI NUCL,F-38026 ST MARTIN DHERES,FRANCE

来源：

NUCLEAR PHYSICS A | 1993年 / 555卷 / 01期

关键词：

D O I：

10.1016/0375-9474(93)90325-R

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：

Rho meson propagation in dense nuclear matter and dilepton production are considered in a phenomenological model with coupling to pi+pi- states. Special attention is paid to constraints from gauge invariance. Taking into account the usual pi-DELTAh coupling it is found that the rho meson in matter is slightly quenched and shifted upwards. A new interesting structure at approximately 500 MeV appears in the rho-meson mass spectrum.

引用

页码：329 / 353

页数：25

共 17 条

[1] PI-PI SCATTERING IN A HOT PION GAS AT URHIC-CONDITIONS [J].

AOUISSAT, Z ;

CHANFRAY, G ;

SCHUCK, P ;

WELKE, G .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1991, 340 (03) :347-348

[2] RHO MESON IN DENSE HADRONIC MATTER [J].

ASAKAWA, M ;

KO, CM ;

LEVAI, P ;

QIU, XJ .

PHYSICAL REVIEW C, 1992, 46 (04) :R1159-R1162

[3]

BERTIN PY, 1992, PHYS LETT B, V274, P133

[4] SIGMA-MESON AND RHO-MESON STRENGTH DISTRIBUTIONS FROM IN-MEDIUM CORRECTED PI-PI CORRELATIONS [J].

CHANFRAY, G ;

AOUISSAT, Z ;

SCHUCK, P ;

NORENBERG, W .

PHYSICS LETTERS B, 1991, 256 (3-4) :325-330

[5]

CHANFRAY G, 1992, NUCL PHYS A, V545, pC271, DOI 10.1016/0375-9474(92)90467-X

[6]

CHANFRAY G, 1991, JUN P INT WORKSH PIO

[7]

ERICSON TEO, 1989, PIONS NUCLEI

[8] DILEPTON RADIATION FROM HIGH-TEMPERATURE NUCLEAR-MATTER [J].

GALE, C ;

KAPUSTA, J .

PHYSICAL REVIEW C, 1987, 35 (06) :2107-2116

[9]

HERRMANN M, 1992, NUCL PHYS A, V545, pC267, DOI 10.1016/0375-9474(92)90466-W

[10] EFFECT OF THE IMAGINARY PART OF THE PION SELF-ENERGY ON DILEPTON PRODUCTION IN DENSE NUCLEAR-MATTER [J].

KO, CM ;

XIA, LH ;

SIEMENS, PJ .

PHYSICS LETTERS B, 1989, 231 (1-2) :16-20

← 1 2 →