Journal article 44 views 12 downloads
Dilaton Forbidden Dark Matter
Maurizio Piai 
,
James Ingoldby ,
Thomas Appelquist
,
James Ingoldby ,
Thomas Appelquist
Phys Rev D
Swansea University Author:
Maurizio Piai
-
PDF | Accepted Manuscript
Download (1.28MB)
Abstract
Dilaton effective field theory (dEFT) describes the long distance behavior of certain confining, near-conformal gauge theories that have been studied via lattice computation. Pseudo-Nambu-Goldstone bosons (pNGBs), emerging from the breaking of approximate, continuous, internal symmetries, are couple...
| Published in: | Phys Rev D |
|---|---|
| Published: |
|
| URI: | https://cronfa.swan.ac.uk/Record/cronfa66974 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Abstract: |
Dilaton effective field theory (dEFT) describes the long distance behavior of certain confining, near-conformal gauge theories that have been studied via lattice computation. Pseudo-Nambu-Goldstone bosons (pNGBs), emerging from the breaking of approximate, continuous, internal symmetries, are coupled to an additional scalar particle, the dilaton, arising from the spontaneous breaking of approximate scale invariance. This effective theory has been employed to study possible extensions of the standard model. In this paper, we propose a complementary role for dEFT, as a description of the dark matter of the universe, with the pNGBs identified as the dark-matter particles. We show that this theory provides a natural implementation of the “forbidden” dark matter mechanism, and we identify regions of parameter space for which the thermal history of dEFT yields the measured dark matter relic density. |
|---|---|
| College: |
Faculty of Science and Engineering |