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The Dirac oscillator is an exactly soluble model recently introduced in the context of many particle models in relativistic quantum mechanics. The model has been also considered as an interaction term for modelling quark confinement in…

Quantum Physics · Physics 2016-08-15 R. P. Martínez-y-Romero , H. N. Núñez-Yépez , A. L. Salas-Brito

The DIRAC spectrometer has been commissioned at CERN with the aim of detecting $\pi^+ \pi^-$ atoms produced by a 24 GeV/$c$ high intensity proton beam in thin foil targets. A challenging apparatus is required to cope with the high…

High Energy Physics - Experiment · Physics 2012-08-27 DIRAC Collaboration

This paper presents a mixed-integer quadratic programming formulation of an existing data-driven approach to computational elasticity. This formulation is suitable for application of a standard mixed-integer programming solver, which finds…

Optimization and Control · Mathematics 2019-09-17 Yoshihiro Kanno

This paper is a mini-review of the atmospheric muon and neutrino flux calculations based upon a recent version of CORT code and up-to-date data on primary cosmic rays and hadronic interactions. A comparison of calculations with a…

High Energy Physics - Phenomenology · Physics 2007-05-23 Vadim A. Naumov

In recent years, processing in memory (PIM) based mixedsignal designs have been proposed as energy- and area-efficient solutions with ultra high throughput to accelerate DNN computations. However, PIM designs are sensitive to imperfections…

Hardware Architecture · Computer Science 2022-08-31 Payman Behnam , Uday Kamal , Saibal Mukhopadhyay

We investigate potential quantum nonlinear corrections to Dirac's equation through its sub-leading effect on neutrino oscillation probabilities. Working in the plane-wave approximation and in the $\mu-\tau$ sector, we explore various…

High Energy Physics - Phenomenology · Physics 2011-02-08 Wei Khim Ng , Rajesh R. Parwani

Based on experimental evidences supporting the hypothesis that neutrinos might be tachyonic fermions, a new Dirac-type equation is proposed and a spin-1/2 tachyonic quantum theory is developed. The new Dirac-type equation provides a…

High Energy Physics - Theory · Physics 2007-05-23 Tsao Chang

The fundamental solution of the Dirac equation for an electron in an electromagnetic field with harmonic dependence on space-time coordinates is obtained. The field is composed of three standing plane harmonic waves with mutually orthogonal…

Quantum Physics · Physics 2015-02-11 G. N. Borzdov

Knowledge of atmospheric muon flux intensity at large depths is extremely important for neutrino telescopes located deep under ground, water or ice. One of the methods to transform muon sea-level spectrum into depth one is to apply Monte…

High Energy Physics - Phenomenology · Physics 2007-05-23 E. V. Bugaev , I. A. Sokalski , S. I. Klimushin

We provide comprehensive calculations of total muon fluxes, energy and angular spectra, and mean muon energies in deep underground laboratories - under flat overburdens and mountains and underwater - using our latest calculation code, MUTE…

High Energy Physics - Phenomenology · Physics 2024-09-19 William Woodley , Anatoli Fedynitch , Marie-Cécile Piro

Evaluation of relativistic molecular integrals over exponential-type spinor orbitals require using the relativistic auxiliary functions in prolate spheroidal coordinates. They have derived recently by the author [Physical Review E 91,…

Computational Physics · Physics 2022-01-26 Ali Bagci

MERLIN is an accelerator physics library written in C++ which can be used for a range of accelerator tracking simulations, including collimation in hadron colliders. Recently MERLIN has been upgraded to provide a robust tool for HL-LHC…

Accelerator Physics · Physics 2019-03-21 Haroon Rafique , Robert B Appleby , Roger J Barlow , James G Molson , Sam Tygier , Alessandra Valloni

Although Raman spectroscopy is widely used for the investigation of biomedical samples and has a high potential for use in clinical applications, it is not common in clinical routines. One of the factors that obstruct the integration of…

Data Analysis, Statistics and Probability · Physics 2022-01-20 Darina Storozhuk , Oleg Ryabchykov , Juergen Popp , Thomas Bocklitz

The traditional split-up into a low level language and a high level language in the design of computer algebra systems may become obsolete with the advent of more versatile computer languages. We describe GiNaC, a special-purpose system…

Symbolic Computation · Computer Science 2007-05-23 Christian Bauer , Alexander Frink , Richard Kreckel

The development and production of radio frequency quadrupoles, which are used for accelerating low-energy ions to high energies, continues since 1970s. The development of RFQ design software packages, which can provide ease of use with a…

Accelerator Physics · Physics 2016-03-22 B. Yasatekin , G. Turemen , E. Celebi , G. Unel , O. Cakir

The calculation of hadronic polarizability contribution of the nucleus to hyperfine structure of muonic hydrogen and helium is carried out within the unitary isobar model and experimental data on the polarized structure functions of deep…

High Energy Physics - Phenomenology · Physics 2017-11-03 A. V. Eskin , A. P. Martynenko , E. N. Elekina

Discrete Fourier Transform (DFT) libraries are one of the most critical software components for scientific computing. Inspired by FFTW, a widely used library for DFT HPC calculations, we apply compiler technologies for the development of…

Mathematical Software · Computer Science 2022-07-27 Yifei He , Artur Podobas , Måns I. Andersson , Stefano Markidis

Automatic differentiation represents a paradigm shift in scientific programming, where evaluating both functions and their derivatives is required for most applications. By removing the need to explicitly derive expressions for gradients,…

Chemical Physics · Physics 2022-06-29 Muhammad F. Kasim , Susi Lehtola , Sam M. Vinko

Accurate and efficient analysis of materials properties from Nuclear Magnetic Resonance (NMR) relaxation data requires robust and efficient inversion procedures. Despite the great variety of applications requiring to process two-dimensional…

Mathematical Software · Computer Science 2022-01-19 Villiam Bortolotti , Leonardo Brizi , Germana Landi , Anastasiia Nagmutdinova , Fabiana Zama

We present a tool for batch generation of input scripts and multi-type Fourier analysis from simulation results for the micromagnetic software MuMax3. The introduction of graphical user interface and parameter-sweeping functionality…

Signal Processing · Electrical Eng. & Systems 2019-10-02 Zhiwei Ren , Lichuan Jin , Tianlong Wen , Yulong Liao , Xiaoli Tang , Huaiwu Zhang , Zhiyong Zhong