Scattering off an SO(10) cosmic string

Details Scattering off an SO(10) cosmic string Scattering off an SO(10) cosmic string

1994-09-13

arxiv.org/abs/hep-ph/9409302v1

Phys.Rev. D52 (1995) 1944-1954

Physics

High Energy Physics

High Energy Physics - Phenomenology

20 pages

Scientific paper

10.1103/PhysRevD.52.1944

The scattering of fermions from the abelian string arising during the phase transition $SO(10) \rightarrow SU(5) \times Z_2$ induced by the Higgs in the 126 representation is studied. Elastic cross-sections and baryon number violating cross-sections due to the coupling to gauge fields in the core of the string are computed by both a first quantised method and a perturbative second quantised method. The elastic cross-sections are found to be Aharonov-Bohm type. However, there is a marked asymmetry between the scattering cross-sections for left and right handed fields. The catalysis cross-sections are small, depending on the grand unified scale. If cosmic strings were observed our results could help tie down the underlying gauge group.

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