| Title: |
Asymptotic safety in O(N) scalar models coupled to gravity |
| Authors: |
Labus, Peter; Percacci, Roberto; Vacca, G. P. |
| Contributors: |
Labus, Peter; Percacci, Roberto; Vacca, G. P. |
| Publication Year: |
2016 |
| Collection: |
International School for Advanced Studies (SISSA), Trieste: SISSA Digital Library (SDL) |
| Subject Terms: |
Settore FIS/02 - Fisica Teorica; Modelli e Metodi Matematici |
| Description: |
We extend recent results on scalar-tensor theories to the case of an O( N)-invariant multiplet. Some exact fixed point solutions of the RG flow equations are discussed. We find that also in the functional context, on employing a standard "type-I" cutoff, too many scalars destroy the gravitational fixed point. For d= 3 we show the existence of the gravitationally dressed Wilson-Fisher fixed point also for N 1. We discuss also the results of the analysis for a different, scalar-free, coarse-graining scheme. © 2015 The Authors. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
info:eu-repo/semantics/altIdentifier/wos/WOS:000368783600041; volume:753; issue:Feb; firstpage:274; lastpage:281; numberofpages:8; journal:PHYSICS LETTERS. SECTION B; https://hdl.handle.net/20.500.11767/17424; https://arxiv.org/abs/1505.05393 |
| DOI: |
10.1016/j.physletb.2015.12.022 |
| Availability: |
https://hdl.handle.net/20.500.11767/17424; https://doi.org/10.1016/j.physletb.2015.12.022; https://arxiv.org/abs/1505.05393 |
| Rights: |
info:eu-repo/semantics/openAccess ; license:Creative commons ; license uri:http://creativecommons.org/licenses/by/3.0/it/ |
| Accession Number: |
edsbas.7668357D |
| Database: |
BASE |