FINITE-RANGE EFFECTS IN THE PINUNU, PINUDELTA AND PIDELTADELTA VERTICES

被引：30

作者：

DILLIG, M ^{[1
]}

BRACK, M ^{[1
]}

机构：

[1] SUNY STONY BROOK,DEPT PHYS,STONY BROOK,NY 11794

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 1979年 / 5卷 / 02期

关键词：

D O I：

10.1088/0305-4616/5/2/010

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：

The structure of the pi NN, pi N Delta and pi Delta Delta vertices is investigated in a microscopic model. Besides the inclusion of a consistent set of diagrams in lowest order, higher-order corrections from the strongly dominating pi rho triangle diagram are included by solving a set of coupled integral equations, thereby allowing for the excitation of nucleonic and isobaric intermediate states. The resulting cut-off masses in a monopole parametrisation are >or=8mpi for the pi NN and >or=6m pi for the pi N Delta vertex.

引用

页码：223 / 228

页数：6

共 19 条

[1] DETERMINATION OF ONE-PION EXCHANGE POTENTIAL FROM PN AND PP CHARGE-EXCHANGE SCATTERING [J].