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Scalar Modifications To Gravity From Unparticle Effects May Be Testable, Haim Goldberg, Pran Nath

Haim Goldberg

Interest has focused recently on low energy implications of a nontrivial scale invariant sector of an effective field theory with an IR fixed point, manifest in terms of “unparticles” with peculiar properties. If unparticle stuff exists it could couple to the stress tensor and mediate a new “fifth” force (“ungravity”). Under the assumption of strict conformal invariance in the hidden sector down to low energies, we compute the lowest order ungravity correction to the Newtonian gravitational potential and find scale invariant power law corrections of type (RG/r)2dU⁻1, where dU is an anomalous unparticle dimension and RG is a characteristic length …