The fermion spectrum in braneworld collisions

Saffin, Paul M.; Tranberg, Anders

Abstract

In braneworld collisions fermions originally localised on one brane can be transferred to another brane, or to a space-time boundary. By modelling branes as scalar field kinks we bounce them off boundaries and study resulting effects according to a braneworld observer. Extending on our previous work, we numerically compute the spectrum of excitations of fermion modes localised on the brane and boundary, in terms of the momentum k along the brane dimensions. We find that the spectrum depends strongly on collision velocity and fermion-scalar coupling. Also, high-momentum modes tend to ``fall off'' the kinks and become delocalised radiation.

Citation

Saffin, P. M., & Tranberg, A. (2007). The fermion spectrum in braneworld collisions. Journal of High Energy Physics, 2007(12), https://doi.org/10.1088/1126-6708/2007/12/053

• Journal Article Type: Article
• Acceptance Date: Nov 28, 2007
• Publication Date: Dec 13, 2007
• Deposit Date: Apr 21, 2017
• Publicly Available Date: Apr 21, 2017
• Journal: Journal of High Energy Physics
• Electronic ISSN: 1029-8479
• Publisher: Springer Verlag
• Peer Reviewed: Peer Reviewed
• Volume: 2007
• Issue: 12
• DOI: https://doi.org/10.1088/1126-6708/2007/12/053
• Public URL: https://nottingham-repository.worktribe.com/output/704446
• Publisher URL: http://iopscience.iop.org/article/10.1088/1126-6708/2007/12/053/meta