The influence of strong interaction on the pionium wave functions at small distances

被引：14

作者：

Amirkhanov, I

Puzynin, I

Tarasov, A ^{[1
]}

Voskresenskaya, O

Zeinalova, O

机构：

[1] Joint Inst Nucl Res, Dubna 141980, Russia

[2] Max Planck Inst Kernphys, D-69029 Heidelberg, Germany

来源：

PHYSICS LETTERS B | 1999年 / 452卷 / 1-2期

基金：

俄罗斯基础研究基金会;

关键词：

mesonic atoms; strong interaction; Schrodinger equation; perturbation theory; continuous Newton's method;

D O I：

10.1016/S0370-2693(99)00256-7

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The influence of the strong pi(+)pi(-)-interaction of the behaviour of pionium nS-state wave functions at small distances is studied both analytically (perturbatively) and numerically. It is shown that on the whole the accounting of strong interaction results in multiplying purl Coulomb pionium wave functions by some function which is practically independent of the value of the principal quantum number n. Due to this reason, the n-dependence of pi(+)pi(-)-atom production probability in nS-state remains the same as in the case of the pure Coulomb pi(+)pi(-)-interaction. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：155 / 158

页数：4

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