Fermions in a Global Monopole Background
نویسنده
چکیده
We study the scattering of fermions in a " global monopole " background metric. This is the four-dimensional analogue of the scattering on a cone in three dimensions. The scattering amplitude is exactly obtained. We then study mass-less fermion-dyon systems in such a background metric. The density of the S-wave fermion condensate is found to be given by a constant times the flat space value of Callan and Rubakov. We study the fermion scattering in a " global monopole " background metric (whose explicit form we will give below). This is one of the few examples where the scattering amplitude can be exactly obtained. It is the four-dimensional analogue of the scattering on a cone studied in [1]. The scattering of scalar particles in such a background is studied in [2].
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