A CLASS OF BESSEL-FUNCTION INTEGRALS WITH APPLICATION IN PARTICLE PHYSICS

被引:13
作者
GRANT, IP
QUINEY, HM
机构
[1] Math. Inst., Oxford Univ.
来源
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 1993年 / 26卷 / 24期
关键词
D O I
10.1088/0305-4470/26/24/027
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Many problems in particle physics and held theory require the evaluation ofintegrals of the form I-l1,I-l2,I-l3(p1,p2,p3)=4(p1p2p3)/pi integral(0)(infinity)r(2)jl(1)(p1r)jl(2)(p2r)jl(3)(p3r)dr. Our investigation arose in connection with a new method of partial wave mass renormalization of the electron self-energy in quantum electrodynamics (QED) where these integrals play a crucial role. Previous studies appear not to have led to expressions which are readily computable. We derive an explicit formula for the general case and a recursive method of construction which allows us to generate all cases of practical interest to high precision. Our algorithms are highly efficient on scalar computers and readily vectorize on suitable machines.
引用
收藏
页码:7547 / 7562
页数:16
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