期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 5, 页码 -出版社
SPRINGER
DOI: 10.1088/1126-6708/2009/05/024
关键词
Cosmology of Theories beyond the SM; Nonperturbative Effects
Assuming that two incoming annihilating particles interact by exchanging a generally massive attractive vector ( or scalar) boson, we find, by taking the non-relativistic limit of the field theory ladder diagrams, that the complete annihilation amplitude A is equal to: the convolution of a solution of the Schroedinger equation ( including the attractive potential) with the Fourier transform of the bare (i.e. ignoring the attraction) annihilation amplitude A(0). The main novelty is that A(0) can be completely arbitrary. For a Coulomb potential we find analytically the enhancement for the l-partial-wave cross-section, e. g. the P wave enhancement 2 pi(alpha/v)(3) (v relative velocity), for a Yukawa potential we describe a simple algorithm and give numerical results showing an important P wave enhancement with a resonant pattern.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据