ANTIPROTON PRODUCTION IN P-NUCLEUS AND NUCLEUS-NUCLEUS COLLISIONS WITHIN A RELATIVISTIC TRANSPORT APPROACH

被引：27

作者：

TEIS, S

CASSING, W

MARUYAMA, T

MOSEL, U

机构：

[1] Institut für Theoretische Physik, Universität Giessen

来源：

PHYSICS LETTERS B | 1993年 / 319卷 / 1-3期

关键词：

D O I：

10.1016/0370-2693(93)90779-H

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The production of antiprotons in proton-nucleus and nucleus-nucleus reactions is calculated within the relativistic BUU approach employing proper selfenergies for the baryons and antiprotons and treating the pBAR annihilation nonperturbatively. The differential cross section for the antiprotons is found to be very sensitive to the pBAR selfenergy adopted. A detailed comparison with the available experimental data for p-nucleus and nucleus-nucleus reactions shows that the antiproton feels a moderately attractive mean-field at normal nuclear matter density rho0 which is in line with a dispersive potential extracted from the free annihilation cross section.

引用

页码：47 / 52

页数：6

共 31 条

[1]

Aichelin J, 1991, PHYS REP, V202, P235

[2]

BALDIN AA, 1988, JETP LETT, V47, P137

[3] ANTIPROTON PRODUCTION IN P-NUCLEUS AND NUCLEUS-NUCLEUS COLLISIONS [J].