Antiproton production in pp, dp and dd collisions close to threshold

被引：8

作者：

Lykasov, GI ^{[1
]}

Rzjanin, MV ^{[1
]}

Cassing, W ^{[1
]}

机构：

[1] INST THEORET PHYS, D-35392 GIESSEN, GERMANY

来源：

PHYSICS LETTERS B | 1996年 / 387卷 / 04期

关键词：

inelastic proton scattering; relativistic models;

D O I：

10.1016/0370-2693(96)01118-5

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The production of antiprotons in pp collisions is investigated close to threshold where experimental data about the total cross section are not available. We analyze the latter reaction within the LUND string model for inclusive (p) over bar production and within the framework of a one-boson exchange model for the exclusive reaction pp --> ppp (p) over bar. The application of our new results to the analysis of subthreshold antiproton production in d + p and d + d collisions shows cross sections that are much lower than expected before. Nevertheless, the comparison of experimental (p) over bar differential cross sections from d + p and d + d is expected to provide valuable information about a nonnucleonic component in the deuteron wavefunction.

引用

页码：691 / 696

页数：6

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