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We present a new determination of the local dark matter phase-space density. This result is obtained implementing, in the limit of isotropic velocity distribution and spherical symmetry, Eddington's inversion formula, which links univocally…

宇宙学与河外天体物理 · 物理学 2015-06-03 Riccardo Catena , Piero Ullio

A large number of studies, all using Bayesian parameter inference from Markov Chain Monte Carlo methods, have constrained the presence of a decaying dark matter component. All such studies find a strong preference for either very long-lived…

宇宙学与河外天体物理 · 物理学 2022-11-04 Emil Brinch Holm , Laura Herold , Steen Hannestad , Andreas Nygaard , Thomas Tram

Weakly Interacting Massive Particles (WIMPs) are one of the leading candidates for Dark Matter. We developed a model-independent method for determining the WIMP mass by using data (i.e., measured recoil energies) of direct detection…

高能物理 - 唯象学 · 物理学 2009-02-02 Manuel Drees , Chung-Lin Shan

We propose an improved method to study recent and near-future dark matter direct detection experiments with small numbers of observed events. Our method determines in a quantitative and halo-independent way whether the experiments point…

高能物理 - 唯象学 · 物理学 2015-03-24 Brian Feldstein , Felix Kahlhoefer

We consider the problem of setting confidence intervals on a parameter of interest from the maximum-likelihood fit of a physics model to a binned data set with a large number of bins, large event-counts per bin, and in the presence of…

数据分析、统计与概率 · 物理学 2026-02-09 Cristina-Andreea Alexe , Joshua Bendavid , Lorenzo Bianchini , Davide Bruschini

The 'WIMP miracle' for the relic abundance of thermal dark matter motivates weak scale dark matter with renormalizable couplings to standard model particles. We study minimal models with such couplings that explain dark matter as a thermal…

高能物理 - 唯象学 · 物理学 2014-01-22 Spencer Chang , Ralph Edezhath , Jeffrey Hutchinson , Markus Luty

The theoretical interpretation of dark matter (DM) experiments is hindered by uncertainties on the dark matter density and velocity distribution inside the Solar System. In order to quantify those uncertainties, we present a parameter that…

高能物理 - 唯象学 · 物理学 2018-12-14 Alejandro Ibarra , Bradley J. Kavanagh , Andreas Rappelt

In this work we show how the inclusion of dark matter (DM) direct detection upper bounds in a theoretically consistent manner can affect the allowed parameter space of a DM model. Traditionally, the limits from DM direct detection…

高能物理 - 唯象学 · 物理学 2016-03-14 Cristina Marcos , Miguel Peiro , Sandra Robles

In our work on the development of a model-independent data analysis method for estimating the spin-independent (SI) scalar coupling of Weakly Interacting Massive Particles (WIMPs) on nucleons by using measured recoil energies from direct…

高能物理 - 唯象学 · 物理学 2015-03-19 Chung-Lin Shan

We use Cosmic Microwave Background data from the WMAP, SPT, BICEP, and QUaD experiments to obtain constraints on the dark matter particle mass $m_\chi$, and show that the combined data requires $m_\chi > 7.6$ GeV at the 95% confidence level…

宇宙学与河外天体物理 · 物理学 2013-05-30 Aravind Natarajan

To model modern large-scale datasets, we need efficient algorithms to infer a set of $P$ unknown model parameters from $N$ noisy measurements. What are fundamental limits on the accuracy of parameter inference, given finite signal-to-noise…

机器学习 · 统计学 2016-09-07 Madhu Advani , Surya Ganguli

Dark matter detectors built primarily to probe elastic scattering of WIMPs on nuclei are also precise probes of light, weakly coupled particles that may be absorbed by the detector material. In this paper, we derive constraints on the…

高能物理 - 唯象学 · 物理学 2015-07-23 Haipeng An , Maxim Pospelov , Josef Pradler , Adam Ritz

Although weakly interacting massive particles (WIMPs) have long been among the most studied and theoretically attractive classes of candidates for the dark matter of our universe, the lack of their detection in direct detection and collider…

高能物理 - 唯象学 · 物理学 2019-11-27 Carlos Blanco , Miguel Escudero , Dan Hooper , Samuel J. Witte

Modern deep learning reconstruction algorithms generate impressively realistic scans from sparse inputs, but can often produce significant inaccuracies. This makes it difficult to provide statistically guaranteed claims about the true state…

机器学习 · 计算机科学 2025-09-29 Matt Y Cheung , Tucker J Netherton , Laurence E Court , Ashok Veeraraghavan , Guha Balakrishnan

We consider the dark matter (DM) scenarios consisting of the mixture of WIMPs and PBHs and study how much fraction of the total DM can be PBHs. In such scenarios, PBHs can accrete the WIMPs and consequently enhance the heating and…

宇宙学与河外天体物理 · 物理学 2021-06-23 Hiroyuki Tashiro , Kenji Kadota

This thesis explores experimental and theoretical approaches to dark matter detection, from gas-based detectors to quantum sensors, tackling the challenge of identifying dark matter, which makes up 27% of the Universe's energy. It reviews…

天体物理仪器与方法 · 物理学 2025-12-05 David Díez-Ibáñez

We compare current and forecasted constraints on dynamical dark energy models from Type Ia supernovae and the cosmic microwave background using figures of merit based on the volume of the allowed dark energy parameter space. For a…

宇宙学与河外天体物理 · 物理学 2014-11-20 Michael J. Mortonson , Dragan Huterer , Wayne Hu

Models of nuclear dark matter propose that the dark sector contains large composite states consisting of dark nucleons in analogy to Standard Model nuclei. We examine the direct detection phenomenology of a particular class of nuclear dark…

高能物理 - 唯象学 · 物理学 2017-11-01 A. Butcher , R. Kirk , J. Monroe , S. M. West

We identify and analyze thermal dark matter candidates in the fraternal twin Higgs model and its generalizations. The relic abundance of fraternal twin dark matter is set by twin weak interactions, with a scale tightly tied to the weak…

高能物理 - 唯象学 · 物理学 2016-02-02 Nathaniel Craig , Andrey Katz