Lorentz violation effects in asymmetric two brane models: A nonperturbative analysis

Farakos, K

dc.contributor.author	Farakos, K	en
dc.date.accessioned	2014-03-01T01:31:00Z
dc.date.available	2014-03-01T01:31:00Z
dc.date.issued	2009	en
dc.identifier.issn	1126-6708	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19715
dc.subject	Brane Dynamics in Gauge Theories	en
dc.subject	Field Theories in Higher Dimensions	en
dc.subject.classification	Physics, Particles & Fields	en
dc.subject.other	GAMMA-RAY EMISSION	en
dc.subject.other	GRAVITY	en
dc.subject.other	DIMENSIONS	en
dc.subject.other	MILLIMETER	en
dc.subject.other	HIERARCHY	en
dc.subject.other	FERMI	en
dc.subject.other	TEV	en
dc.title	Lorentz violation effects in asymmetric two brane models: A nonperturbative analysis	en
heal.type	journalArticle	en
heal.identifier.primary	10.1088/1126-6708/2009/08/031	en
heal.identifier.secondary	http://dx.doi.org/10.1088/1126-6708/2009/08/031	en
heal.identifier.secondary	031	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	We consider the case of bulk photons in a Lorentz violating brane background, with an asymmetric warping between space and time warp factors. A perturbative analysis, in a previous work, gave an energy dependent phase (or group) velocity of light: V-ph(omega) = V-ph(0) - C-G omega(2) (C-G > 0), which was derived up to second order of time independent perturbation theory. In this paper, we go beyond the perturbative result and we study the nonperturbative behavior of the phase velocity for larger energies, by solving numerically an eigenvalue problem for the wave function of the zero mode (4D photon). In particular we see that V-ph(omega) is in general a monotonically decreasing function which tends asymptotically to a final value V-ph(infinity). We compare with the results of perturbation theory and we obtain a very good agreement in the range of small energies. We also present a wave function analysis and we see that in the nonperturbative sector of the theory (very high energies), the zero mode and the massive KK modes tend to decouple from matter localized on the TeV brane.	en
heal.publisher	INT SCHOOL ADVANCED STUDIES	en
heal.journalName	Journal of High Energy Physics	en
dc.identifier.doi	10.1088/1126-6708/2009/08/031	en
dc.identifier.isi	ISI:000270220000031	en
dc.identifier.volume	2009	en
dc.identifier.issue	8	en