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The goal of this research project is to give quantitative information useful for the design of a g-ray detector to investigate neutron capture (n, g) reactions on radioactive nuclei at the Manuel Lujan Jr. Neutron Scattering Center (MLNSC)…

We use a set of Monte Carlo simulations to follow the cascade produced by a primary electron of energy E_in in the intergalactic medium. We choose E_in=3-10 keV as expected from the decay of one of the most popular Warm Dark Matter (WDM)…

Astrophysics · Physics 2009-11-13 M. Valdés , A. Ferrara

We present an open-source code for the simulation of electron and ion transport for user-defined gas mixtures with static uniform electric and magnetic fields. The program provides microscopic interaction simulation and is interfaced with…

Computational Physics · Physics 2021-09-14 Michele Renda , Dan Andrei Ciubotaru , Calin Iulian Banu

The precise simulation of particle transport through detectors remains a key element for the successful interpretation of high energy physics results. However, Monte Carlo based simulation is extremely demanding in terms of computing…

High Energy Physics - Experiment · Physics 2021-09-08 Florian Rehm , Sofia Vallecorsa , Kerstin Borras , Dirk Krücker

Simourg is a software based on the Geant4 toolkit and provides the Monte Carlo simulation of nuclear spectrometric setups with simple geometries for such applications as nuclear decay research, radiation safety, and nuclear medicine. With…

Instrumentation and Detectors · Physics 2026-01-07 D. S. Kovalenko , V. V. Kobychev , L. M. Kobycheva , O. V. Zueva

Stereo mini-jet cells will be indispensable components of a future $e^+e^-$ linear collider central tracker such as JLC-CDC. There is, however, no official Geant4 solid available at present to describe such geometrical objects, which had…

High Energy Physics - Experiment · Physics 2009-11-10 Kotoyo Hoshina , Keisuke Fujii , Osamu Nitoh

The simulation of the instruments based on the cascade multiplication of electrons has always been an important and challenging subject in no matter high energy physics, astrophysics, radiography and other fields. In this work, a generic…

Instrumentation and Detectors · Physics 2023-10-10 Han Miao , Huaxing Peng , Baojun Yan , Shulin Liu , Hai-Bo Li

The development of a package for the management of physics data is described: its design, implementation and computational benchmarks. This package improves the data management tools originally developed for Geant4 physics models based on…

Computational Physics · Physics 2010-12-02 Mincheol Han , Maria Grazia Pia , Hee Seo , Lorenzo Moneta , Chan Hyeong Kim

We present a simulation-based study of a compact directional neutron detector composed of liquid scintillator, Cesium Iodide, with boron carbide (B4C) moderation, and silicon photomultipliers (SiPMs). Using GEANT4, we explored multiple…

Instrumentation and Detectors · Physics 2025-07-22 J. -H. Chen , M. Mirzakhani , R. Mahapatra , S. Sahoo

Surface simulations are important for accurately modeling particle interactions in experiments where background contributions from surface contaminants can significantly affect detector performance. In rare event searches, such as dark…

Instrumentation and Detectors · Physics 2025-11-21 Christoph Grüner

In the present paper, we observationally constrain f (G) gravity at the background level using Type Ia supernovae from the Pantheon Plus (PP) sample, cosmic chronometer (CC) data, and the recent Baryon Acoustic Oscillation (BAO)…

General Relativity and Quantum Cosmology · Physics 2026-04-23 Praveen Kumar Dhankar , Dalale Mhamdi , Albert Munyeshyaka , Darshan Kumar , Joseph Ntahompagaze , Taoufik Ouali

To characterize the signals registered by the different types of water Cherenkov detectors (WCD) used by the Latin American Giant Observatory (LAGO) Project, it is necessary to develop detailed simulations of the detector response to the…

Instrumentation and Methods for Astrophysics · Physics 2019-08-13 R. Calderón , H. Asorey , L. A. Núñez

Molecular Dynamics (MD) simulation is a powerful tool for understanding the dynamics and structure of matter. Since the resolution of MD is atomic-scale, achieving long time-scale simulations with femtosecond integration is very expensive.…

Machine Learning · Computer Science 2022-04-27 Zijie Li , Kazem Meidani , Prakarsh Yadav , Amir Barati Farimani

Neutron-induced reactions with charged particle emission play an important role in a variety of research fields ranging from fundamental nuclear physics and nuclear astrophysics to applications of nuclear technologies to energy production…

Instrumentation and Detectors · Physics 2022-11-23 P. Tsintari , G. Perdikakis , H. Y. Lee , S. A. Kuvin , A. Georgiadou , H. I. Kim , D. Votaw , L. Zavorka

In low activity gamma spectrometric measurements of large, dense samples, the bulk sample material shields the HPGe crystal from external background sources. If not accounted for in studies that utilise background-subtraction methods, this…

Instrumentation and Detectors · Physics 2022-09-08 M. Thiesse , P. Scovell , L. Thompson

An approximate formula has been derived for gain fluctuations in cascaded gaseous detectors such as GEM-s, based on the assumption that the charge collection, avalanche formation and extraction steps are independent cascaded processes. In…

Instrumentation and Detectors · Physics 2016-08-24 Dezső Varga

Two-step cascades from the 192Os(n th,gamma)193Os reaction were studied in gamma-gamma coincidence measurement. The decay scheme of 193Os was established up to the excitation energy ~3 MeV. The excitation spectrum of intermediate levels of…

Nuclear Experiment · Physics 2007-05-23 V. A. Bondarenko , J. Honzatko , V. A. Khitrov , A. M. Sukhovoj , I. Tomandl

Among the many variants of graph neural network (GNN) architectures capable of modeling data with cross-instance relations, an important subclass involves layers designed such that the forward pass iteratively reduces a graph-regularized…

Machine Learning · Computer Science 2025-03-03 Haitian Jiang , Renjie Liu , Zengfeng Huang , Yichuan Wang , Xiao Yan , Zhenkun Cai , Minjie Wang , David Wipf

Recent progress has been experienced in the field of hypernuclear weak decay, especially concerning the ratio of the neutron- to proton-induced Lambda non-mesonic decay rates, G_n/G_p. Theoretical analyses of nucleon coincidence data have…

Nuclear Theory · Physics 2011-01-20 E. Bauer , G. Garbarino , A. Parreno , A. Ramos

Recently, Generative Adversarial Networks (GANs) trained on samples of traditionally simulated collider events have been proposed as a way of generating larger simulated datasets at a reduced computational cost. In this paper we point out…

High Energy Physics - Phenomenology · Physics 2022-03-30 Konstantin T. Matchev , Alexander Roman , Prasanth Shyamsundar
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