Dipolar Dark Matter as an Effective Field Theory

Abstract

Dipolar Dark Matter (DDM) is an alternative model motivated by the challenges faced by the standard cold dark matter model to describe the right phenomenology at galactic scales. A promising realisation of DDM was recently proposed in the context of massive bigravity theory. The model contains dark matter particles, as well as a vector field coupled to the effective composite metric of bigravity. This model is completely safe in the gravitational sector thanks to the underlying properties of massive bigravity. In this work we investigate the exact decoupling limit of the theory, including the contribution of the matter sector, and prove that it is free of ghosts in this limit. We conclude that the theory is acceptable as an Effective Field Theory below the strong coupling scale.

8 pages, 1 figure

References in corpus (20)

• A direct empirical proof of the existence of dark matter
• Resummation of Massive Gravity
• The Radial Acceleration Relation in Rotationally Supported Galaxies
• Emergent Gravity and the Dark Universe
• The Current Status of Galaxy Formation
• Bimetric MOND gravity
• Cosmic Acceleration and the Helicity-0 Graviton
• A Novel Test of the Modified Newtonian Dynamics with Gas Rich Galaxies
• On couplings to matter in massive (bi-)gravity
• Ghosts & Matter Couplings in Massive (bi-&multi-)Gravity
• X-ray Group and cluster mass profiles in MOND: Unexplained mass on the group scale
• Are sterile neutrinos consistent with clusters, the CMB and MOND?
• Gravitational polarization and the phenomenology of MOND
• Model of Dark Matter and Dark Energy Based on Gravitational Polarization
• An Alternative to Particle Dark Matter
• Dark Matter via Massive (bi-)Gravity
• Quantum corrections in massive bigravity and new effective composite metrics
• Infrared lessons for ultraviolet gravity: the case of massive gravity and Born-Infeld
• Reconciling MOND and dark matter?
• Phenomenology of Dark Matter via a Bimetric Extension of General Relativity

Cited by in corpus (10)

• A systematic approach to generalisations of General Relativity and their cosmological implications
• GW170817 Falsifies Dark Matter Emulators
• Noncovariance at low accelerations as a route to MOND
• Consequences of the external field effect for MOND disk galaxies in galaxy clusters
• Dynamics of DiskMass Survey galaxies in refracted gravity
• Antimatter gravity and the Universe
• Covariant formulation of refracted gravity
• Dark Coincidences: Small-Scale Solutions with Refracted Gravity and MOND
• Disk galaxies and their dark halos as self-organized patterns
• Absence of gravitational polarization mechanism in the canonical bimetric theory