A5046273431- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Dark Matter and Cosmic Phenomena
- Particle Detector Development and Performance
- Cosmology and Gravitation Theories
- Astrophysics and Cosmic Phenomena
- Computational Physics and Python Applications
- Neutrino Physics Research
- Black Holes and Theoretical Physics
- Stellar, planetary, and galactic studies
- Galaxies: Formation, Evolution, Phenomena
- Astronomy and Astrophysical Research
- Gamma-ray bursts and supernovae
- Nuclear reactor physics and engineering
- Scientific Research and Discoveries
- Medical Imaging Techniques and Applications
- Particle Accelerators and Free-Electron Lasers
- Astrophysics and Star Formation Studies
- Astro and Planetary Science
- Relativity and Gravitational Theory
- Radiation Detection and Scintillator Technologies
- Advanced X-ray and CT Imaging
- CCD and CMOS Imaging Sensors
- Radiomics and Machine Learning in Medical Imaging
University of Canterbury
2010-2022
Universitat de Barcelona
2017-2022
University of Amsterdam
2013-2018
Institute of High Energy Physics
2011-2017
AlbaNova
2016
Stockholm University
2016
ETH Zurich
2016
University of Surrey
2016
European Organization for Nuclear Research
2012-2014
UCLouvain
2013
We estimate the sensitivity of upcoming CTA gamma-ray observatory to DM annihilation at Galactic centre, improving on previous analyses in a number significant ways. First, we perform detailed all backgrounds, including diffuse astrophysical emission for first time study this type. Second, present statistical framework systematic errors and consequent degradation sensitivity. These may come from e.g. event reconstruction, Monte Carlo determination effective area or uncertainty atmospheric...
We derive the local dark matter density by applying integrated Jeans equation method from Silverwood et al. (2016) to SDSS-SEGUE G-dwarf data processed and presented B\"udenbender (2015). use MultiNest Bayesian nested sampling software fit a model for baryon distribution, tracer stars, including 'tilt term' that couples vertical radial motions, data. The $\alpha$-young population (2015) yields most reliable result of $\rho_{\rm DM} = 0.46^{+0.07}_{-0.09}\, {{\rm GeV\, cm}^{-3}}...
We investigate the prospects for reconstructing mass, spin-independent and spin-dependent cross-sections of Dark Matter particles with a combination future direct detection experiments such as XENON1T, IceCube neutrino telescope in 86-string configuration including DeepCore array. quantify degree complementarity between two by adopting realistic values their exposure, energy threshold resolution. Starting from benchmark models arising supersymmetric model 25 free parameters, we show that...
The singlet-doublet fermion dark matter model (SDFDM) provides a good DM candidate as well the possibility of generating neutrino masses radiatively. search and identification requires combined effort both indirect direct detection experiments in addition to LHC. Remarkably, an excess GeV gamma rays from Galactic Center (GCE) has been measured with \textit{Fermi} Large Area Telescope (LAT) which appears be robust respect changes diffuse galactic background modeling. Although several...
We present a new method for determining the local dark matter density using kinematic data population of tracer stars. The Jeans equation in z-direction is integrated to yield an that gives velocity dispersion as function total mass density, and 'tilt' term describes coupling vertical radial motions. then fit profile derive credible regions on profile. Our avoids numerical differentiation, leading lower noise, able deal with tilt while remaining one dimensional. In this study we perform...
The density of dark matter near the Sun is important for experiments hunting particles in laboratory, and constraining local shape Milky Way's halo. Estimates to date have typically assumed that stellar disc axisymmetric a steady-state. Yet Way neither, exhibiting prominent spiral arms bar, vertical radial oscillations. We assess impact these assumptions on determinations by applying free-form, steady-state, Jeans method two different N-body simulations Way-like galaxies. In one, galaxy has...
We analyse the sensitivity of IceCube-DeepCore to annihilation neutralino dark matter in solar core, generated within a 25 parameter version minimally supersymmetric standard model (MSSM-25). explore 25-dimensional space using scanning methods based on importance sampling and DarkSUSY 5.0.6 calculate observables. Our scans produced database 6.02 million points with consistent relic density implied by WMAP 7-year data, as well accelerator searches. performed exclusion analysis upon these...
The Medipix detector is the first device dedicated to measuring mixed-field radiation in CMS cavern and able distinguish between different particle types. Medipix2-MXR chips bump bonded silicon sensors with various neutron conversion layers developed by IEAP CTU Prague were successfully installed for 2008 LHC start-up experimental services caverns measure flux of types, particular neutrons. They have operated almost continuously during 2010 run period, results shown here are from proton...
Typical stars in the Milky Way galaxy have velocities of hundreds kilometres per second and experience gravitational accelerations $\sim 10^{-10}$ m s$^{-2}$, resulting velocity changes a few centimetres over decade. Measurements these would permit direct tests applicability Newtonian dynamics on kiloparsec length scales could reveal significant small scale inhomogeneities within galaxy, as well increasing sensitivity measurements overall mass distribution galaxy. Noting that reasonable...
Direct measurement of acceleration is a key scientific goal for both cosmology and exoplanets. For cosmology, the concept redshift drift (more than 60 years old by 2020s) could directly establish Friedmann-Lema{\^\i}tre-Robertson-Walker model. It would increase dark energy figure merit factor 3 beyond Stage 4 experiments, in combination with cosmic microwave background measurements. exoplanets, same technology required provides unprecedented radial velocity accuracy, enabling detection Earth...
Determination of the Dark Matter density at solar position is critical to direct and indirect dark matter searches.Additionally, it important make this determination with as few assumptions possible, results from detection searches are used explore a wide variety theoretical models, hidden astrophysical could bias searches.Here we present Jeans analysis based method for local which allows us limit number need make.We fit baryon models tracer velocity dispersion data via integrated equations,...
Abstract We present a determination of the local dark matter density derived using integrated Jeans equation method presented in Silverwood et al. (2016) applied to SDSS-SEGUE G-dwarf data processed by Büdenbender (2015). For our analysis we construct models for tracer density, and baryon distribution, tilt term (linking radial vertical motions), then calculate velocity dispersion equation. These are fit MultiNest , posterior distribution is derived. find most reliable come from α-young...