Research Repository

See what's under the surface


Pitfalls of a power-law parametrization of the primordial power spectrum for primordial black hole formation (2018)
Journal Article
Green, A. M. (2018). Pitfalls of a power-law parametrization of the primordial power spectrum for primordial black hole formation. Physical Review D, 98(2), doi:10.1103/PhysRevD.98.023529. ISSN 2470-0010

Primordial Black Holes (PBHs) can form in the radiation dominated early Universe from the collapse of large density perturbations produced by inflation. A power-law parameterisation of the primordial power spectrum is often used to extrapolate from c... Read More

Time-integrated directional detection of dark matter (2017)
Journal Article
O'Hare, C. A., Kavanagh, B. J., & Green, A. M. (in press). Time-integrated directional detection of dark matter. Physical Review D, 96, doi:10.1103/PhysRevD.96.083011. ISSN 2470-0010

The analysis of signals in directional dark matter (DM) detectors typically assumes that the directions of nuclear recoils can be measured in the Galactic rest frame. However, this is not possible with all directional detection technologies. In nucle... Read More

Astrophysical uncertainties on stellar microlensing constraints on multi-solar mass primordial black hole dark matter (2017)
Journal Article
Green, A. M. (2017). Astrophysical uncertainties on stellar microlensing constraints on multi-solar mass primordial black hole dark matter. Physical Review D, 96, doi:10.1103/PhysRevD.96.043020. ISSN 2470-0010

There has recently been interest in multi-Solar mass Primordial Black Holes (PBHs) as a dark matter (DM) candidate. There are various microlensing, dynamical and accretion constraints on the abundance of PBHs in this mass range. Taken at face value t... Read More

Astrophysical uncertainties on the local dark matter distribution and direct detection experiments (2017)
Journal Article
Green, A. M. (2017). Astrophysical uncertainties on the local dark matter distribution and direct detection experiments. Journal of Physics G: Nuclear and Particle Physics, 44(8), doi:10.1088/1361-6471/aa7819. ISSN 0954-3899

The differential event rate in weakly interacting massive particle (WIMP) direct detection experiments depends on the local dark matter density and velocity distribution. Accurate modelling of the local dark matter distribution is therefore required... Read More

Microlensing and dynamical constraints on primordial black hole dark matter with an extended mass function (2016)
Journal Article
Green, A. M. (in press). Microlensing and dynamical constraints on primordial black hole dark matter with an extended mass function. Physical Review D - Particles, Fields, Gravitation and Cosmology, 94, doi:10.1103/PhysRevD.94.063530. ISSN 1550-7998

The recent discovery of gravitational waves from mergers of ∼10 M⊙ black hole binaries has stimulated interested in primordial black hole (PBH) dark matter in this mass range. Microlensing and dynamical constraints exclude all of the dark matter in c... Read More

How to calculate dark matter direct detection exclusion limits that are consistent with gamma rays from annihilation in the Milky Way halo (2016)
Journal Article
Cerdeno, D. G., Fornasa, M., Green, A. M., & Peiro, M. (2016). How to calculate dark matter direct detection exclusion limits that are consistent with gamma rays from annihilation in the Milky Way halo. Physical Review D, 94, doi:10.1103/PhysRevD.94.043516. ISSN 2470-0010

When comparing constraints on the weakly interacting massive particle (WIMP) properties from direct and indirect detection experiments it is crucial that the assumptions made about the dark matter (DM) distribution are realistic and consistent. For i... Read More

A review of the discovery reach of directional Dark Matter detection (2016)
Journal Article
Mayet, F., Green, A. M., Battat, J., Billard, J., Bozorgnia, N., Gelmini, G., …Vahsen, S. (2016). A review of the discovery reach of directional Dark Matter detection. Physics Reports, 627, doi:10.1016/j.physrep.2016.02.007. ISSN 0370-1573

Cosmological observations indicate that most of the matter in the Universe is Dark Matter. Dark Matter in the form of Weakly Interacting Massive Particles (WIMPs) can be detected directly, via its elastic scattering off target nuclei. Most current di... Read More

Readout strategies for directional dark matter detection beyond the neutrino background (2015)
Journal Article
O'Hare, C. A., Green, A. M., Billard, J., Figueroa-Feliciano, E., & Strigari, L. E. (2015). Readout strategies for directional dark matter detection beyond the neutrino background. Physical Review D - Particles, Fields, Gravitation and Cosmology, 92(6), doi:10.1103/PhysRevD.92.063518. ISSN 1550-7998

The search for weakly interacting massive particles (WIMPs) by direct detection faces an en- croaching background due to coherent neutrino-nucleus scattering. As the sensitivity of these ex- periments improves, the question of how to best distinguish... Read More

WIMP particle physics and astrophysics with direct detection and neutrino telescope data (2015)
Journal Article
Kavanagh, B. J., Fornasa, M., & Green, A. M. (2015). WIMP particle physics and astrophysics with direct detection and neutrino telescope data. Physical Review D - Particles, Fields, Gravitation and Cosmology, 91, ISSN 1550-7998

With positive signals from multiple direct detection experiments it will, in principle, be possi- ble to measure the mass and cross sections of weakly-interacting massive particle (WIMP) dark matter. Recent work has shown that, with a polynomial para... Read More

Probing WIMP particle physics and astrophysics with direct detection and neutrino telescope data (2015)
Journal Article
Kavanagh, B. J., Fornasa, M., & Green, A. (2015). Probing WIMP particle physics and astrophysics with direct detection and neutrino telescope data. Physical Review D - Particles, Fields, Gravitation and Cosmology, 91, doi:10.1103/PhysRevD.91.103533

With positive signals from multiple direct detection experiments, it will, in principle, be possible to measure the mass and cross sections of weakly interacting massive particle (WIMP) dark matter. Recent work has shown that, with a polynomial param... Read More

WIMP physics with ensembles of direct-detection experiments (2014)
Journal Article
Peter, A. H., Glusevic, V., Green, A. M., Kavanagh, B. J., & Lee, S. L. (2014). WIMP physics with ensembles of direct-detection experiments. Physics of the Dark Universe, 5-6, doi:10.1016/j.dark.2014.10.006. ISSN 2212-6864

The search for weakly-interacting massive particle (WIMP) dark matter is multi-pronged. Ulti- mately, the WIMP-dark-matter picture will only be confirmed if different classes of experiments see consistent signals and infer the same WIMP properties. I... Read More

A self-consistent phase-space distribution function for the anisotropic dark matter halo of the Milky Way (2014)
Journal Article
Fornasa, M., & Green, A. M. (2014). A self-consistent phase-space distribution function for the anisotropic dark matter halo of the Milky Way. Physical Review D - Particles, Fields, Gravitation and Cosmology, 89, doi:10.1103/PhysRevD.89.063531. ISSN 1550-7998

Dark Matter (DM) direct detection experiments usually assume the simplest possible ‘Standard Halo Model’ for the Milky Way (MW) halo in which the velocity distribution is Maxwellian. This model assumes that the MW halo is an isotropic, isothermal sph... Read More