COHERENT PHOTON-PHOTON PROCESSES IN DISRUPTIVE AND NONDISRUPTIVE RELATIVISTIC HEAVY-ION COLLISIONS

被引：14

作者：

BAUR, G

BARON, N

机构：

[1] Institut für Kernphysik (Theorie), Forschungszentrum Jülich

来源：

NUCLEAR PHYSICS A | 1993年 / 561卷 / 04期

关键词：

D O I：

10.1016/0375-9474(93)90069-A

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：

Using an impact parameter formulation, differential probability distributions and cross sections for the production of lepton pairs via the photon-photon mechanism are calculated for relativistic heavy-ion collisions. The characteristic features of lepton pair production in disruptive as well as in non-disruptive A-A collisions are studied. Cross sections can be large, the very low k(perpendicular-to)-values of the pairs will help to distinguish these pairs from the ones originating from other sources like Drell-Yan or thermal production.

引用

页码：628 / 650

页数：23

共 23 条

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Akhiezer A. I., 1965, QUANTUM ELECTRODYNAM

[2] THE PROCESS GAMMA+GAMMA -] L+L IN COHERENT HEAVY-ION COLLISIONS [J].