TeV Scale Lee-Wick Fields out of Large Extra Dimensional Gravity

Abstract

We study the gravitational corrections to the Maxwell, Dirac and Klein-Gorden theories in the large extra dimension model in which the gravitons propagate in the (4+n)-dimensional bulk, while the gauge and matter fields are confined to the four-dimensional world. The corrections to the two-point Green's functions of the gauge and matter fields from the exchanges of virtual Kaluza-Klein gravitons are calculated in the gauge independent background field method. In the framework of effective field theory, we show that the modified one-loop renormalizable Lagrangian due to quantum gravitational effects contains a TeV scale Lee-Wick partner of every gauge and matter field as extra degrees of freedom in the theory. Thus the large extra dimension model of gravity provides a natural mechanism to the emergence of these exotic particles which were recently used to construct an extension of the Standard Model.

17 pages, 3 figures, references added, to appear in Phys. Rev. D

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• Electroweak Precision Data and the Lee-Wick Standard Model
• Higher-Derivative Lee-Wick Unification
• External Sources in Lee-Wick Theories
• Constraints on the Lee-Wick Higgs Sector
• Quantum gravity, gauge coupling constants, and the cosmological constant
• Higher order derivative operators as quantum corrections
• No Lee-Wick Fields out of Gravity
• Probing features of the Lee-Wick quantum electrodynamics
• Classical polymerization of the Schwarzschild metric
• New class of spin projection operators for 3D models
• Complex-mass shell renormalization of the higher-derivative electrodynamics
• Discrete heat kernel, UV modified Green's function, and higher derivative theories
• Two-loop corrections and predictability on orbifold
• Gravitational Corrections to ${\Phi }^4$ Theory with Spontaneously Broken Symmetry
• Higher Derivative Operators in the Noncommutative Schwinger Model