Results 31 to 40 of about 2,215 (222)
Needle Propagation and Twinkling Characteristics
Journal of Geophysical Research: Atmospheres, Volume 126, Issue 6, 27 March 2021., 2021 Abstract Recently, a new lightning phenomena, termed needles, has been observed in both VHF and in optical along positive lightning leaders. They appear as small (<100 m) leader branches that undergo dielectric breakdown at regular intervals (called twinkles).
B. M. Hare +18 more
wiley +1 more source
The Initial Stage of Cloud Lightning Imaged in High‐Resolution
Journal of Geophysical Research: Atmospheres, Volume 126, Issue 4, 27 February 2021., 2021 Abstract With LOFAR we have been able to image the development of lightning flashes with meter‐scale accuracy and unprecedented detail. We discuss the primary steps behind our most recent lightning imaging method. To demonstrate the capabilities of our technique we show and interpret images of the first few milliseconds of two intracloud flashes.
O. Scholten +23 more
wiley +1 more source
Constraints on Lorentz Invariance Violation with Multiwavelength Polarized Astrophysical Sources
Galaxies, 2021 Possible violations of Lorentz invariance (LIV) can produce vacuum birefringence, which results in a frequency-dependent rotation of the polarization plane of linearly polarized light from distant sources.
Qi-Qi Zhou +3 more
doaj +1 more source
Advances in High Energy Physics, Volume 2021, Issue 1, 2021., 2021 We have estimated centrality variation of chemical freeze‐out parameters from yield data at midrapidity of π±, K± and p, p¯ for collision energies of RHIC (Relativistic Heavy Ion Collider), Beam Energy Scan (RHIC‐BES) program, and LHC (Large Hadron Collider).
Deeptak Biswas, Raghunath Sahoo
wiley +1 more source
, 2002 56 pages, 42 eps figures, uses cite.sty and crckapb.sty. Lectures at the 6th Constantine School on Weak and Strong Interactions Phenomenology, Mentouri University, Constantine, Algeria, 6-12 April ...
GIACOMELLI, GIORGIO MARIA +1 more
openaire +4 more sources
HexagDLy—Processing hexagonally sampled data with CNNs in PyTorch
SoftwareX, 2019 HexagDLy is a Python-library extending the PyTorch deep learning framework with convolution and pooling operations on hexagonal grids. It aims to ease the access to convolutional neural networks for applications that rely on hexagonally sampled data as ...
Constantin Steppa, Tim L. Holch
doaj +1 more source
Astroparticle physics, a constructive empiricist account
Science & Philosophy, 2019 Astroparticle physics is an interdisciplinary field embracing astronomy, astrophysics and particle physics. In a recent paper on this topic (2012), Brigitte Falkenburg defended that only scientific realism can make sense of it and that realist beliefs ...
Alessio Gava
doaj +1 more source
Counter-based pseudorandom number generators for CORSIKA 8 [PDF]
EPJ Web of Conferences, 2021 This document is devoted to the description of advances in the generation of high-quality random numbers for CORSIKA 8, which is being developed in modern C++17 and is designed to run on modern multi-thread processors and accelerators.
Alves A. Augusto +2 more
doaj +1 more source
Neutrinos in nuclear and astroparticle physics
Frontiers in Physics, 2014 Since the prediction about its existence, by Pauli, the neutrino has been, and still is, the principal object in the cross field ofnuclear, particle and astroparticle physics.
Osvaldo eCivitarese
doaj +1 more source
SABRE and the Stawell Underground Physics Laboratory Dark Matter Research at the Australian National University [PDF]
EPJ Web of Conferences, 2020 The direct detection of dark matter is a key problem in astroparticle physics that generally requires the use of deep-underground laboratories for a low-background environment where the rare signals from dark matter interactions can be observed.
Bignell L. J. +15 more
doaj +1 more source