PERTURBATIVE QCD CALCULATION OF REAL AND VIRTUAL COMPTON-SCATTERING

被引：45

作者：

FARRAR, GR

ZHANG, HY

机构：

[1] Department of Physics and Astronomy, Rutgers University, Piscataway

来源：

PHYSICAL REVIEW D | 1990年 / 41卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.41.3348

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the predictions of perturbative QCD for Compton scattering as a function of photon virtuality. Individual helicity amplitudes are given, along with formulas to permit calculation of the eNeN amplitudes. We discover remarkable structure in some of the amplitudes as a function of photon virtuality. Since eNeN contains a contribution from Bethe-Heitler scattering, whose magnitude and phase are known, the phases of the virtual Compton amplitudes can in principle be measured by interference with it. It has been shown that the leading-twist behavior of high-energy, large-angle Compton scattering is not affected by soft physics; thus at sufficiently high energies these predictions provide a stringent test of QCD. © 1990 The American Physical Society.

引用

页码：3348 / 3359

页数：12

共 19 条

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