DIFFRACTIVE ELASTIC-SCATTERING AND HADRONIC RADII - GEOMETRIC AND POMERON APPROACHES

被引：34

作者：

HUFNER, J ^{[1
]}

POVH, B ^{[1
]}

机构：

[1] MAX PLANCK INST NUCL PHYS,W-6900 HEIDELBERG 1,GERMANY

来源：

PHYSICAL REVIEW D | 1992年 / 46卷 / 03期

关键词：

D O I：

10.1103/PhysRevD.46.990

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A parametrization based on geometric concepts is proposed for the spin-independent part of the amplitude A12(s,t) for elastic scattering of hadrons 1 and 2 at center-of-mass energies square-root s greater than or similar to 20 GeV. The dependence on the squared momentum transfer t is described by the form factors E(i)(t,R(i)2(s)) for each hadron and contain energy-dependent complex radii R(i)(s). Data on differential cross sections for pp, ppBAR, and pi-p as well as the energy dependence of the total cross section and the slope parameter are reproduced with few adjustable parameters. When our parametrization for A12(s,t) is compared to the one from the Pomeron approach strong similarities emerge.

引用

页码：990 / 996

页数：7

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