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DeeProb-kit is a unified library written in Python consisting of a collection of deep probabilistic models (DPMs) that are tractable and exact representations for the modelled probability distributions. The availability of a representative…

机器学习 · 计算机科学 2022-12-09 Lorenzo Loconte , Gennaro Gala

Decaying or annihilating dark matter particles could be detected through gamma-ray emission from the species they decay or annihilate into. This is usually done by modelling the flux from specific dark matter-rich objects such as the Milky…

宇宙学与河外天体物理 · 物理学 2022-12-01 Deaglan J. Bartlett , Andrija Kostić , Harry Desmond , Jens Jasche , Guilhem Lavaux

The GLAST LAT Collaboration is one among several experimental groups, covering a wide range of approaches, pursuing the search for the nature of dark matter. The GLAST LAT has the unique ability to find new sources of high energy gamma…

天体物理学 · 物理学 2008-11-26 Lawrence Wai , GLAST LAT Collaboration

Indirect detection of particle dark matter relies upon pair annihilation of Weakly Interaction Massive Particles (WIMPs), which is complementary to the well known techniques of direct detection (WIMP-nucleus scattering) and collider…

天体物理学 · 物理学 2008-11-26 Lawrence Wai , GLAST LAT Collaboration

The scattering of dark matter particles off nuclei in direct detection experiments can be described in terms of a multidimensional effective field theory (EFT). A new systematic analysis technique is developed using the EFT approach and…

宇宙学与河外天体物理 · 物理学 2017-04-26 H. E. Rogers , D. G. Cerdeno , P. Cushman , F. Livet , V. Mandic

$\texttt{HEPfit}$ is a flexible open-source tool which, given the Standard Model or any of its extensions, allows to $\textit{i)}$ fit the model parameters to a given set of experimental observables; $\textit{ii)}$ obtain predictions for…

We carry out a Bayesian analysis of dark matter (DM) direct detection data to determine particle model parameters using the Truncated Marginal Neural Ratio Estimation (TMNRE) machine learning technique. TMNRE avoids an explicit calculation…

高能物理 - 唯象学 · 物理学 2025-01-17 David Cerdeno , Martin de los Rios , Andres D. Perez

Dropout is used as a practical tool to obtain uncertainty estimates in large vision models and reinforcement learning (RL) tasks. But to obtain well-calibrated uncertainty estimates, a grid-search over the dropout probabilities is necessary…

机器学习 · 统计学 2017-05-23 Yarin Gal , Jiri Hron , Alex Kendall

We describe NumBAT, an open-source software tool for modelling stimulated Brillouin scattering in waveguides of arbitrary cross-section. It provides rapid calculation of optical and elastic dispersion relations, field profiles and gain with…

In this review article the current status of particle dark matter is addressed. We discuss the main theoretical extensions of the standard model which allow to explain dark matter in terms of a (yet undiscovered) elementary particle. We…

天体物理学 · 物理学 2008-11-26 Nicolao Fornengo

The second generation of gravitational-wave detectors is scheduled to start operations in 2015. Gravitational-wave signatures of compact binary coalescences could be used to accurately test the strong-field dynamical predictions of general…

广义相对论与量子宇宙学 · 物理学 2015-06-22 Walter Del Pozzo , Katherine Grover , Ilya Mandel , Alberto Vecchio

The field of particle physics is living very exciting times with a plethora of experiments looking for new physics in complementary ways. This has made increasingly necessary to obtain precise predictions in new physics models in order to…

高能物理 - 唯象学 · 物理学 2017-05-19 Avelino Vicente

micrOMEGAs is a code to compute dark matter observables in generic extensions of the standard model. This version of micrOMEGAs includes a generalization of the Boltzmann equations to take into account the possibility of two dark matter…

高能物理 - 唯象学 · 物理学 2015-05-20 G. Belanger , F. Boudjema , A. Pukhov , A. Semenov

Conventional dark matter direct detection experiments set stringent constraints on dark matter by looking for elastic scattering events between dark matter particles and nuclei in underground detectors. However these constraints weaken…

高能物理 - 唯象学 · 物理学 2017-11-21 Timon Emken , Chris Kouvaris

Probabilistic programming languages (PPLs) are expressive means for creating and reasoning about probabilistic models. Unfortunately hybrid probabilistic programs, involving both continuous and discrete structures, are not well supported by…

编程语言 · 计算机科学 2024-06-25 Poorva Garg , Steven Holtzen , Guy Van den Broeck , Todd Millstein

Several cosmic ray experiments have measured excesses in electrons and positrons, relative to standard backgrounds, for energies from ~ 10 GeV - 1 TeV. These excesses could be due to new astrophysical sources, but an explanation in which…

高能天体物理现象 · 物理学 2014-11-20 Spencer Chang , Lisa Goodenough

The subtle and unique imprint of dark matter substructure on extended arcs in strong lensing systems contains a wealth of information about the properties and distribution of dark matter on small scales and, consequently, about the…

宇宙学与河外天体物理 · 物理学 2020-02-25 Johann Brehmer , Siddharth Mishra-Sharma , Joeri Hermans , Gilles Louppe , Kyle Cranmer

In this talk, we will review Inert Triplet Model (ITM) which provide candidate for dark matter (DM) particles. Then we study possible decays of Higgs boson to DM candidate and apply current experimental data for invisible Higgs decay to…

高能物理 - 唯象学 · 物理学 2015-06-03 Seyed Yaser Ayazi , S. Mahdi Firouzabadi

These lectures, presented at TASI 2016: Anticipating the Next Discoveries in Particle Physics, provide an introduction to some key methods and tools of indirect dark matter searches. Topics covered include estimation of dark matter signals,…

高能物理 - 唯象学 · 物理学 2017-10-17 Tracy R. Slatyer