RELATIVISTIC DESCRIPTION OF PI-D SCATTERING .2. EFFECTS OF SMALL PI-N WAVES, NN RESCATTERING, RHO-EXCHANGE AND PI-ABSORPTION AND EMISSION

被引：66

作者：

RINAT, AS

HAMMEL, E

STARKAND, Y

THOMAS, AW

机构：

[1] INST RADIUMFORSCHUNG & KERNPHYS,VIENNA,AUSTRIA

[2] UNIV BRITISH COLUMBIA,TRIUMF,VANCOUVER V6T 1W5,BC,CANADA

来源：

NUCLEAR PHYSICS A | 1979年 / 329卷 / 03期

关键词：

D O I：

10.1016/0375-9474(79)90377-4

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 a relativistic three-body theory we calculated elastic differential cross sections, polarisations and total cross sections for pion-deuteron scattering in the (3, 3) resonance region. Effects of pion absorption and emission have been calculated rigorously, including pion rescattering effects and ρ-meson exchange to all orders. Inclusion of pion absorption and emission produces appreciable changes in the large angle differential cross section and in all polarisation parameters. The inclusion of non-resonant πN partial waves leads to significantly improved agreement with experiment for Tπ = 142 MeV and at forward angles for 256 MeV. None of these effects, nor the inclusion of selected NN partial waves other than 3S1-3D1, produces the deep minimum observed at 256 MeV. © 1979.

引用

页码：285 / 307

页数：23

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