Zhu, Dan (2024) Study Of Nambu And Cho-Maison Monopole - Antimonopole Pair In Weinberg - Salam Model. PhD thesis, Perpustakaan Hamzah Sendut.
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Abstract
In this dissertation, two types of monopole-antimonopole pair (map) solutions are found in the weinberg-salam model. The maps are of crucial importance. This is because if magnetic monopoles were detected in the lab, it would be through pair production, which is precisely the configuration described by the maps. In this work, nambu map was investigated first, which consists of a monopole and an antimonopole bounded by a z0 flux string. It was also confirmed that the nambu map is the electroweak sphaleron, which plays an important role in baryogenesis. In this research, 300 numerical solutions were obtained corresponding to the nambu map with physical higgs self-coupling, β = 0.7782, and weinberg angle, tan θw = 0.5358. Total energies of these solutions were calculated and confirmed that they reside in a range of 13.17–21.02 tev. The rest mass of the system was estimated to be 14.17 ± 0.49 tev which strongly indicates that this configuration might be detected in the near future. In addition, evidence was found indicating an oscillatory phenomenon in the energy density along the string connecting the poles, associated with the symmetry of the solutions. Further investigations revealed that both magnetic charge density and electric current of the u(1) gauge field exhibit similar patterns, which contribute directly to the energy density oscillation.
| Item Type: | Thesis (PhD) |
|---|---|
| Subjects: | Q Science > QC Physics > QC1 Physics (General) |
| Divisions: | Pusat Pengajian Sains Fizik (School of Physics) > Thesis |
| Depositing User: | Mr Hasmizar Mansor |
| Date Deposited: | 14 Apr 2026 05:18 |
| Last Modified: | 14 Apr 2026 05:18 |
| URI: | http://eprints.usm.my/id/eprint/63888 |
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