Zobrazeno 1 - 10
of 3 669
pro vyhledávání: '"Cox , Peter"'
We derive new bounds on hadronically-interacting, sub-GeV mass dark matter. First, we show that one-loop interactions with photons can be sufficient to maintain equilibrium between the dark matter and Standard Model sectors at MeV temperatures, resul
Externí odkaz:
http://arxiv.org/abs/2408.12144
Publikováno v:
J. High Energ. Phys. 2024, 11 (2024)
We provide an exhaustive classification of three-family DFSZ axion models that have no cosmological domain wall problem. This result is obtained by making the Peccei-Quinn symmetry flavour dependent in certain specific ways, thus reinforcing a possib
Externí odkaz:
http://arxiv.org/abs/2310.16348
Publikováno v:
J. High Energ. Phys. 2023, 180 (2023)
We identify the QCD axion and right-handed (sterile) neutrinos as bound states of an $SU(5)$ chiral gauge theory with Peccei-Quinn (PQ) symmetry arising as a global symmetry of the strong dynamics. The strong dynamics is assumed to spontaneously brea
Externí odkaz:
http://arxiv.org/abs/2310.08557
Publikováno v:
Phys. Rev. D. 109, 095013 (2024)
The absorption of fermionic dark matter has recently been studied as a signature for the direct detection of dark matter. We construct the first UV completion of the scalar effective operator associated with this signature. We calculate the constrain
Externí odkaz:
http://arxiv.org/abs/2308.00309
Autor:
Baker, Christopher G., Bowen, Warwick P., Cox, Peter, Dolan, Matthew J., Goryachev, Maxim, Harris, Glen
Publikováno v:
Phys. Rev. D 110, 043005 (2024)
We propose the Optomechanical Dark-matter INstrument (ODIN), based on a new method for the direct detection of low-mass dark matter. We consider dark matter interacting with superfluid helium in an optomechanical cavity. Using an effective field theo
Externí odkaz:
http://arxiv.org/abs/2306.09726
Publikováno v:
Phys. Rev. D 109, L091902 (2024)
An ongoing challenge in dark matter direct detection is to improve the sensitivity to light dark matter in the MeV--GeV mass range. One proposal is to dope a liquid noble-element direct detection experiment with a lighter element such as hydrogen. Th
Externí odkaz:
http://arxiv.org/abs/2305.04690
Publikováno v:
Phys. Rev. D 107, 035032 (2023)
The scattering of neutral particles by an atomic nucleus can lead to electronic ionisation and excitation through a process known as the Migdal effect. We revisit and improve upon previous calculations of the Migdal effect, using the Dirac-Hartree-Fo
Externí odkaz:
http://arxiv.org/abs/2208.12222