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Título : One-loop Higgs mass finiteness in supersymmetric Kaluza-Klein theories
Autor : Delgado, Antonio; Gersdorff, G. v.; John, P.; Quirós, Mariano
Palabras clave : High Energy Physics
Phenomenology
Fecha de publicación : 11-abr-2001
Citación : arXiv:hep-ph/0104112v2
Phys.Lett. B517 (2001) 445-449
Resumen: We analyze the one-loop ultraviolet sensitivity of the Higgs mass in a five-dimensional supersymmetric theory compactified on the orbifold S^1/Z_2, with superpotential localized on a fixed-point brane. Four-dimensional supersymmetry is broken by Scherk-Schwarz boundary conditions. Kaluza-Klein interactions are regularized by means of a brane Gaussian distribution along the extra dimension with length l_s\simeq\Lambda^{-1}_s, where \Lambda_s is the cutoff of the five-dimensional theory. The coupling of the n-mode, with mass M^{(n)}, acquires the n-dependent factor exp{-(M^{(n)}/\Lambda_s)^2/2}, which makes it to decouple for M^{(n)}\gg \Lambda_s. The sensitivity of the Higgs mass on \Lambda_s is strongly suppressed and quadratic divergences cancel by supersymmetry. The one-loop correction to the Higgs mass is finite and equals, for large values of \Lambda_s, the value obtained by the so-called KK-regularization.
Descripción : This is Version nr. 2 (28 Aug 2001) of the original paper (11 Apr 2001). Includes corrected typos.
URI : http://hdl.handle.net/10261/2563
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