One-loop radiative correction to Kaluza–Klein masses in S2/Z2 universal extra-dimensional model. (21st August 2014)

• Record Type: Journal Article
• Authors: Maru, Nobuhito; Nomura, Takaaki; Sato, Joe
• Is Part Of: Progress of theoretical and experimental physics. Volume 2014:Number 8(2014:Aug.)
• Publication Date: 2014-08-21
• Subjects: B33 -- B40 -- B43 -- B71; Physics -- Periodicals; Mathematical physics -- Periodicals; 530.05
• DOI: 10.1093/ptep/ptu113
• Languages: English
• ISSNs: 2050-3911

Abstract

Abstract: We investigate a radiative correction to the masses of Kaluza–Klein (KK) modes in a universal extra-dimensional model defined on a six-dimensional spacetime with extra space as a two-sphere orbifold $S^2/Z_2$ . We first define the Feynman rules which are necessary for the calculation. We then calculate the one-loop diagrams which contribute to the radiative corrections to the KK masses, and obtain one-loop corrections to masses for fermions, gauge bosons, and scalar bosons. We estimate the one-loop corrections to KK masses for the first KK modes of standard model particles as a function of momentum cut-off scale, and we determine the lightest KK particle which would be a promising candidate for dark matter.