EFT of interacting spin-2 fields
File(s)
Published version
Author(s)
Alberte, Lasma
de Rham, Claudia
Momeni, Arshia
Rumbutis, Justinas
Tolley, Andrew J
Type
Journal Article
Abstract
We consider the effective field theory of multiple interacting massive spin-2 fields. We focus on the case where the interactions are chosen so that the cutoff is the highest possible, and highlight two distinct classes of theories. In the first class, the mass eigenstates only interact through potential operators that carry no derivatives in unitary gauge at leading order. In the second class, a specific kinetic mixing between the mass eigenstates is included non-linearly. Performing a decoupling and ADM analysis, we point out the existence of a ghost present at a low scale for the first class of interactions. For the second class of interactions where kinetic mixing is included, we derive the full Λ3-decoupling limit and confirm the absence of any ghosts. Nevertheless both formulations can be used to consistently describe an EFT of interacting massive spin-2 fields which, for a suitable technically natural tuning of the EFT, have the same strong coupling scale Λ3. We identify the generic form of EFT corrections in each case. By using Galileon Duality transformations for the specific case of two massive spin-2 fields with suitable couplings, the decoupling limit theory is shown to be a bi-Galileon.
Date Issued
2020-01-21
Date Acceptance
2019-12-30
Citation
The Journal of High Energy Physics, 2020, 2020 (1), pp.1-57
ISSN
1029-8479
Publisher
Springer Verlag (Germany)
Start Page
1
End Page
57
Journal / Book Title
The Journal of High Energy Physics
Volume
2020
Issue
1
Copyright Statement
© The Authors. This article is distributed under the terms of the Creative Commons
Attribution License (CC-BY 4.0) (https://creativecommons.org/licenses/by/4.0/), which permits any use, distribution and reproduction in
any medium, provided the original author(s) and source are credited.
Attribution License (CC-BY 4.0) (https://creativecommons.org/licenses/by/4.0/), which permits any use, distribution and reproduction in
any medium, provided the original author(s) and source are credited.
Sponsor
Science and Technology Facilities Council (STFC)
The Royal Society
The Royal Society
Identifier
https://link.springer.com/article/10.1007%2FJHEP01%282020%29131
Grant Number
ST/P000762/1
PHTH_P62062
PHTH_P62062
Subjects
hep-th
hep-th
0105 Mathematical Physics
0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
0206 Quantum Physics
Nuclear & Particles Physics
Publication Status
Published
Article Number
131
Date Publish Online
2020-01-21