Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/2191
Title: Reconsidering extra time-like dimensions
Authors: Erdem, Recai
Ün, Cem Salih
Erdem, Recai
Ün, Cem Salih
Izmir Institute of Technology. Physics
Keywords: Dimensions
Fermion families
Particles(Nuclear physics)
Kaluza-Klein theory
Issue Date: Sep-2006
Publisher: Springer Verlag
Source: Erdem, R., and Ün, C. S. (2006). Reconsidering extra time-like dimensions. European Physical Journal C, 47(3), 845-850. doi:10.1140/epjc/s2006-02587-5
Abstract: In this study we reconsider the phenomenological problems related to tachyonic modes in the context of extra time-like dimensions. First we reconsider a lower bound on the size of extra time-like dimensions and improve on the conclusion in the literature. Next we discuss the issues of spontaneous decay of stable fermions through tachyonic decays and disappearance of fermions due to tachyonic contributions to their self-energies. We find that the tachyonic modes due to extra time-like dimensions are less problematic than the tachyonic modes in the usual 4-dimensional setting because the most troublesome Feynman diagrams are forbidden once the conservation of momentum in the extra time-like dimensions is imposed.
URI: http://doi.org/10.1140/epjc/s2006-02587-5
http://hdl.handle.net/11147/2191
ISSN: 1434-6044
1434-6044
Appears in Collections:Physics / Fizik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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