Results 21 to 30 of about 2,772,396 (335)

GV m−1 on-chip particle accelerator driven by few-cycle femtosecond laser pulse

, 2021
Particle accelerator on chip with high acceleration gradient has been an unremitting goal of researchers. Dielectric laser accelerator (DLA) is a possible candidate to achieve this goal.
Li Sun, Weihao Liu, Jie Zhou, Yunliang Zhu, Zijia Yu, Yucheng Liu, Q. Jia, Baogen Sun, Hong-liang Xu   +8 more
semanticscholar   +1 more source

Online multi-objective particle accelerator optimization of the AWAKE electron beam line for simultaneous emittance and orbit control [PDF]

, 2020
Multi-objective optimization is important for particle accelerators where various competing objectives must be satisfied routinely such as, for example, transverse emittance vs bunch length.
A. Scheinker, Simon Hirlaender, F. Velotti, S. Gessner, G. D. Della Porta, V. Kain, B. Goddard, R. Ramjiawan   +7 more
semanticscholar   +1 more source

Synthesizing Particle-In-Cell Simulations through Learning and GPU Computing for Hybrid Particle Accelerator Beamlines [PDF]

Platform for Advanced Scientific Computing Conference
Particle accelerator modeling is an important field of research and development, essential to investigating, designing and operating some of the most complex scientific devices ever built.
R. Sandberg, R. Lehe, Chad Mitchell, M. Garten, A. Myers, J. Qiang, J. Vay, A. Huebl   +7 more
semanticscholar   +1 more source

On-chip integrated laser-driven particle accelerator [PDF]

Science, 2019
Miniaturizing particle accelerators Particle accelerators are usually associated with large national facilities. Because photons are able to impart momentum to electrons, there are also efforts to develop laser-based particle accelerators.
N. Sapra, K. Yang, D. Vercruysse, K. Leedle, D. Black, R. England, L. Su, Rahul Trivedi, Yu Miao, O. Solgaard, R. Byer, J. Vučković   +11 more
semanticscholar   +1 more source

Complex Langevin analysis of 2D U(1) gauge theory on a torus with a θ term

Journal of High Energy Physics, 2020
Monte Carlo simulation of gauge theories with a θ term is known to be extremely difficult due to the sign problem. Recently there has been major progress in solving this problem based on the idea of complexifying dynamical variables. Here we consider the
Mitsuaki Hirasawa, Akira Matsumoto, Jun Nishimura, Atis Yosprakob   +3 more
doaj   +1 more source

Heavy stable charged tracks as signatures of non-thermal dark matter at the LHC: a study in some non-supersymmetric scenarios

Journal of High Energy Physics, 2017
We consider two theoretical scenarios, each including a ℤ 2-odd sector and leading to an elementary dark matter candidate. The first one is a variant of the Type-III seesaw model where one lepton triplet is ℤ 2-odd, together with a heavy sterile neutrino.
Avirup Ghosh, Tanmoy Mondal, Biswarup Mukhopadhyaya   +2 more
doaj   +1 more source

Experimental demonstration of externally driven millimeter-wave particle accelerator structure

, 2020
We report the experimental demonstration of a mm-wave electron accelerating structure powered by a high-power rf source. We demonstrate reliable coupling of an unprecedented rf power—up to 575 kW into the mm-wave accelerator structure using a quasi ...
M. Othman, J. Picard, S. Schaub, V. Dolgashev, S. Lewis, J. Neilson, A. Haase, S. Jawla, B. Spataro, R. Temkin, Sami G. Tantawi, E. Nanni   +11 more
semanticscholar   +1 more source

Machine learning for orders of magnitude speedup in multiobjective optimization of particle accelerator systems [PDF]

Physical Review Accelerators and Beams, 2019
High-fidelity physics simulations are powerful tools in the design and optimization of charged particle accelerators. However, the computational burden of these simulations often limits their use in practice for design optimization and experiment ...
A. Edelen, N. Neveu, M. Frey, Yannick Huber, C. Mayes, A. Adelmann   +5 more
semanticscholar   +1 more source

LHC signals of a heavy doublet Higgs as dark matter portal: cut-based approach and improvement with gradient boosting and neural networks

Journal of High Energy Physics, 2019
Though the 125-GeV scalar, as the Higgs boson of the standard model, is disfavoured as a dark matter portal by direct searches and the observations on relic density, a heavier scalar in an extended electroweak sector can fit into that role.
Atri Dey, Jayita Lahiri, Biswarup Mukhopadhyaya   +2 more
doaj   +1 more source

PASSAT: particle accelerator helioScopes for Slim Axion-like-particle deTection [PDF]

The European Physical Journal C, 2019
We propose a novel method to search for axion-like particles (ALPs) at particle accelerator experiments. ALPs produced at the target via the Primakoff effect subsequently enter a region with a magnetic field, where they are converted to photons that are ...
W. Bonivento, Doojin Kim, K. Sinha
semanticscholar   +1 more source