Gravitational corrections to the scattering of scalar particles

We evaluated the scattering amplitude of neutral scalar particles at one-loop order in the context of effective field theory of quantum gravity in the presence of a cosmological constant. Our study suggests that quantum gravitational corrections induce an asymptotic freedom behavior to the λϕ4 theory, for a positive cosmological constant. This result hints that a complete theory of quantum gravity can play an important role in avoiding the issue of triviality in quantum field theory.

Note:

15 pages, 2 figures

04.60.-m
11.10.Hi
quantum gravity: correction
scalar particle: scattering
cosmological constant
effective field theory
scattering amplitude
asymptotic freedom
triviality

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Figures(2)

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