Radiative Corrections to Kaluza-Klein Masses

Details Radiative Corrections to Kaluza-Klein Masses Radiative Corrections to Kaluza-Klein Masses

2002-04-29

arxiv.org/abs/hep-ph/0204342v1

Phys.Rev.D66:036005,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

33 pages, 13 figures, uses RevTeX4 and axodraw

Scientific paper

10.1103/PhysRevD.66.036005

Extra-dimensional theories contain a number of almost degenerate states at each Kaluza-Klein level. If extra dimensional momentum is at least approximately conserved then the phenomenology of such nearly degenerate states depends crucially on the mass splittings between KK modes. We calculate the complete one-loop radiative corrections to KK masses in general 5 and 6 dimensional theories. We apply our formulae to the example of universal extra dimensions and show that the radiative corrections are essential to any meaningful study of the phenomenology. Our calculations demonstrate that Feynman diagrams with loops wrapping the extra dimensions are well-defined and cut-off independent even though higher dimensional theories are not renormalizable.

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