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Neutron stars provide a unique opportunity to study strongly interacting matter under extreme density conditions. The intricacies of matter inside neutron stars and their equation of state are not directly visible, but determine bulk…

High Energy Astrophysical Phenomena · Physics 2024-09-04 Len Brandes , Chirag Modi , Aishik Ghosh , Delaney Farrell , Lee Lindblom , Lukas Heinrich , Andrew W. Steiner , Fridolin Weber , Daniel Whiteson

A WWW interface for the simulation of spectral energy distributions of optically thin dust configurations with an embedded radiative source is presented. The density distribution, radiative source, and dust parameters can be selected either…

Astrophysics · Physics 2009-11-11 S. Wolf , L. A. Hillenbrand

The present chapter reviews current neutron and x-ray scattering techniques employed to elucidate the magnetic structures and spin dynamics of magnetic materials. Both techniques provide measurements as a function of the energy and the…

Materials Science · Physics 2021-06-07 Jeffrey W. Lynn , Bernhard Keimer

The purpose of this paper is to demonstrate that if the transformation of a neutron to a mirror neutron exists with an oscillation time of the order of ten seconds, it can be detected in a rather simple disappearance and/or regeneration…

High Energy Physics - Experiment · Physics 2017-09-06 Zurab Berezhiani , Matthew Frost , Yuri Kamyshkov , Ben Rybolt , Louis Varriano

Using high-quality gas phase electron scattering calculations and multiple scattering theory, we attempt to gain insights on the radiation damage to DNA induced by secondary low-energy electrons in the condensed phase, and to bridge the…

Chemical Physics · Physics 2009-11-13 Laurent Caron , Stefano Tonzani , Chris H. Greene , Leon Sanche

Coherent control of neutrons via Bragg diffraction forms the foundation of perfect crystal neutron interferometry, facilitating both fundamental tests of quantum mechanics and applications in quantum information science. In cavity…

Instrumentation and Detectors · Physics 2026-04-06 Owen Lailey , Dusan Sarenac , David G. Cory , Michael G. Huber , Dmitry A. Pushin

Adoption of renewable energy is essential to address the challenge of climate change, but that necessitates energy storage technologies. Lithium-ion batteries, the most ubiquitous solution, are insufficient for large-scale applications, so…

Materials Science · Physics 2023-04-19 Rastislav Turányi , Sanghamitra Mukhopadhyay

We use a numerical electromagnetic simulation software to investigate a filtering device consisting of a small dimensional microstrips embedded with a thin layer of ferromagnetic material and we compare our results to experimental results.…

Materials Science · Physics 2008-02-20 Jonah N. Gollub , Bijoy Kuanr , Zibigniew Celinski , Robert Camley , David R. Smith

Calculating the structure of white dwarf and neutron stars would be a suitable topic for an undergraduate thesis or an advanced special topics or independent study course. The subject is rich in many different areas of physics accessible to…

Nuclear Theory · Physics 2009-11-10 Richard R. Silbar , Sanjay Reddy

We describe the design and current performance of the high-flux backscattering spectrometer located at the NIST Center for Neutron Research. The design incorporates several state-of-the-art neutron optical devices to achieve the highest…

Materials Science · Physics 2009-11-07 A. Meyer , R. M. Dimeo , P. M. Gehring , D. A. Neumann

The first experimental data from single-particle scattering experiments from free electron lasers (FELs) are now becoming available. The first such experiments are being performed on relatively large objects such as viruses, which produce…

Biomolecules · Quantitative Biology 2015-05-28 Dilano Saldin , Hin-Cheuck Poon , Peter Schwander , Miraj Uddin , Marius Schmidt

The gravitational collapse, bounce, the explosion of an iron core of an 11.2 $M_{\odot}$ star is simulated by two-dimensional neutrino-radiation hydrodynamic code. The explosion is driven by the neutrino heating aided by multi-dimensional…

High Energy Astrophysical Phenomena · Physics 2015-06-18 Yudai Suwa

Modeling the motion of ultracold neutrons (UCNs) is crucial for assessing their losses, accurately measuring their lifetime, and describing other experiments. In material traps, it is necessary to account not only for specular but also for…

Instrumentation and Detectors · Physics 2025-03-04 P. D. Grigoriev , V. D. Kochev , V. A. Tsyplukhin , A. M. Dyugaev , I. Ya. Polishchuk

Multi-messenger observations of compact binary mergers provide a new way to constrain the nature of dark matter that may accumulate in and around neutron stars. In this article, we extend the infrastructure of our numerical-relativity code…

General Relativity and Quantum Cosmology · Physics 2022-06-23 Mattia Emma , Federico Schianchi , Francesco Pannarale , Violetta Sagun , Tim Dietrich

Accurate description of neutrino opacities is central both to the core-collapse supernova (CCSN) phenomenon and to the validity of the explosion mechanism itself. In this work, we study in a systematic fashion the role of a variety of…

High Energy Astrophysical Phenomena · Physics 2018-02-08 Kei Kotake , Tomoya Takiwaki , Tobias Fischer , Ko Nakamura , Gabriel Martínez-Pinedo

Long-term neutrino-radiation resistive-magnetohydrodynamics simulations in full general relativity are performed for a system composed of a massive neutron star and a torus formed as a remnant of binary neutron star mergers. The simulation…

High Energy Astrophysical Phenomena · Physics 2021-09-21 Masaru Shibata , Sho Fujibayashi , Yuichiro Sekiguchi

Here we describe the development of the MALTS software which is a generalised tool that simulates Lorentz Transmission Electron Microscopy (LTEM) contrast of thin magnetic nanostructures. Complex magnetic nanostructures typically have…

Materials Science · Physics 2012-10-11 S. K. Walton , K. Zeissler , W. R. Branford , S. Felton

Spherically symmetric simulations of stellar core collapse and post-bounce evolution are used to test the sensitivity of the supernova dynamics to different variations of the input physics. We consider a state-of-the-art description of the…

Astrophysics · Physics 2007-05-23 M. Rampp , R. Buras , H. -Th. Janka , G. Raffelt

Monte Carlo radiative transfer (MCRT) simulations are a powerful tool for determining the appearance of astrophysical objects, analyzing the prevalent physical conditions within them, and inferring their properties on the basis of real…

Instrumentation and Methods for Astrophysics · Physics 2023-12-13 Anton Krieger , Sebastian Wolf

Understanding the equation of state (EOS) of pure neutron matter is necessary for interpreting multimessenger observations of neutron stars. Reliable data analyses of these observations require well-quantified uncertainties for the EOS…

Nuclear Theory · Physics 2025-10-28 Cassandra L. Armstrong , Pablo Giuliani , Kyle Godbey , Rahul Somasundaram , Ingo Tews