Positron energy distribution in a factorized trident process
نویسندگان
چکیده
We estimate the energy distribution of positrons produced in interaction ultra-relativistic electrons with a high-intensity laser beam. The underlying trident process is factorized on probabilistic level. That is, we deploy two-step mechanism for formation electron-positron pairs. In first step, high-energy photon as result nonlinear Compton scattering. second an pair created by (multi-photon) Breit-Wheeler process.
منابع مشابه
Factorized Point Process Intensities: A Spatial Analysis of Professional Basketball
We develop a machine learning approach to represent and analyze the underlying spatial structure that governs shot selection among professional basketball players in the NBA. Typically, NBA players are discussed and compared in an heuristic, imprecise manner that relies on unmeasured intuitions about player behavior. This makes it difficult to draw comparisons between players and make accurate ...
متن کاملEnergy Efficiency Analyses of Toolpaths in a Pocket Milling Process
This paper presents an approach to analytically determine the most energy efficient toolpath strategy in mechanical machining. This was achieved by evaluating the electrical energy requirement of the NC codes generated for the zag, zigzag, and rectangular contour toolpath strategies. The analytical method was validated by performing pocket milling on AISI 1018 steel with the considered toolpath...
متن کاملA Trident Scholar Project Report
........................................................................................................1 Acknowledgements............................................................................................2 Introduction.....................................................................................................3 Methods..............................................................
متن کاملCalculation of Positron Distribution in the Presence of a Uniform Magnetic Field for the Improvement of Positron Emission Tomography (PET) Imaging Using GEANT4 Toolkit
Introduction Range and diffusion of positron-emitting radiopharmaceuticals are important parameters for image resolution in positron emission tomography (PET). In this study, GEANT4 toolkit was applied to study positron diffusion in soft tissues with and without a magnetic field for six commonly used isotopes in PET imaging including 11C, 13N, 15O, 18F, 68Ga, and 82Rb. Materials and Methods GEA...
متن کاملThe Factorized Distribution Algorithm for Additively Decomposed Functions
Published in: Proceedings of the 1999 Congress on Evolutionary Computation, 1999, IEEE Press, 752–759 AbstractFDA the Factorized Distribution Algorithm is an evolutionary algorithm that combines mutation and recombination by using a distribution. First the distribution is estimated from a set of selected points. It is then used to generate new points for the next generation. In general a distri...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical review
سال: 2021
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physreva.104.062811