Non-Wilsonian ultraviolet completion via transseries

Author:

Maiezza Alessio1,Vasquez Juan Carlos2

Affiliation:

1. Ruder Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia

2. Amherst Center for Fundamental Interactions, Department of Physics, University of Massachusetts, Amherst, MA 01003, USA

Abstract

We study some of the implications for the perturbative renormalization program when augmented with the Borel–Ecalle resummation. We show the emergence of a new kind of nonperturbative fixed point for the scalar [Formula: see text] model, representing an ultraviolet self-completion by transseries. We argue that this completion is purely non-Wilsonian and it depends on one arbitrary constant stemming from the transseries solution of the renormalization group equation. On the other hand, if no fixed points are demanded through the adjustment of this arbitrary constant, we end up with an effective theory in which the scalar mass is quadratically-sensitive to the cutoff, even working in dimensional regularization. Complete decoupling of the scalar mass to this energy scale can be used to determine a physical prescription for the Borel–Laplace resummation of the renormalons in nonasymptotically free models. We also comment on possible orthogonal scenarios available in the literature that might play a role when no fixed points exist.

Funder

U.S. Department of Energy

Hrvatska Zaklada za Znanost

Publisher

World Scientific Pub Co Pte Lt

Subject

Astronomy and Astrophysics,Nuclear and High Energy Physics,Atomic and Molecular Physics, and Optics

Reference39 articles.

1. S. Weinberg, Ultraviolet Divergences in Quantum Theories of Gravitation (Harvard University, 1980), pp. 790–831.

2. The renormalization group and the ε expansion

3. XI. The Borel transform and the renormalization group

4. Publications Mathématiques d’Orsay;Ecalle J.,1981

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