Results 51 to 60 of about 2,215 (222)

Physics of astroparticles [PDF]

Brazilian Journal of Physics, 2007
The measurement of the properties of the highest energy astroparticles that hit the Earth's atmosphere is a challenging problem that the Auger experiment tries to solve. In this talk we present a general description of several aspects of the interactions between those high energy particles and the Earth's atmosphere, focusing in primary reconstruction.
openaire   +4 more sources

The Plasma Proton Environment Within Saturn's F‐G Ring Gap as Observed by the Cassini Plasma Spectrometer Ion Mass Spectrometer During Saturn Orbit Insertion

Journal of Geophysical Research: Space Physics, Volume 130, Issue 2, February 2025.
Abstract We report on the detection of protons and the potential detection of H2+ between Saturn's F and G rings based on Cassini Plasma Spectrometer (CAPS) Ion Mass Spectrometer (IMS) time‐of‐flight (TOF) composition measurements acquired during Saturn Orbit Insertion (SOI) outbound pass. The range in dipole L shell is 2.3 < L < 2.8.
E. C. Sittler Jr., A. K. Woodson, R. E. Johnson, J. F. Cooper, W.‐L. Tseng, S. J. Sturner, D. J. Chornay, H. T. Smith, D. G. Simpson, D. B. Reisenfeld   +9 more
wiley   +1 more source

Gravitational wave signatures from domain wall and strong first-order phase transitions in a two complex scalar extension of the Standard Model

Journal of High Energy Physics, 2021
We consider a simple extension of Standard Model by adding two complex singlet scalars with a U(1) symmetry. A discrete Z 2 × Z 2 ′ $$ {\mathcal{Z}}_2\times {\mathcal{Z}}_2^{\prime } $$ symmetry is imposed in the model and the added scalars acquire a non
Avik Paul, Upala Mukhopadhyay, Debasish Majumdar   +2 more
doaj   +1 more source

Multi‐Photon 3D Laser Micro‐Printed Plastic Scintillators for Applications in Low‐Energy Particle Physics

Advanced Functional Materials, Volume 35, Issue 2, January 9, 2025.
Many modern detector systems require structured scintillators in combination with photo‐detectors. This requirement can be fulfilled by 3D printing plastic scintillators which becomes more and more relevant. However, the resolution and surface quality of 1‐photon‐based 3D printing techniques are not sufficient for many applications.
Jannis Weinacker, Sebastian Kalt, Anton Huber, Nathanael Gutknecht, Jonathan Ludwig Günter Schneider, Niclas Maximilian Bojanowski, Tom Geigle, Markus Steidl, Martin Wegener   +8 more
wiley   +1 more source

The KASCADE Cosmic-ray Data Centre KCDC: granting open access to astroparticle physics research data

European Physical Journal C: Particles and Fields, 2018
The ‘KASCADE Cosmic ray Data Centre’ is a web portal (https://kcdc.ikp.kit.edu), where the data of the astroparticle physics experiment KASCADE-Grande are made available for the interested public.
A. Haungs, D. Kang, S. Schoo, D. Wochele, J. Wochele, W. D. Apel, J. C. Arteaga-Velázquez, K. Bekk, M. Bertaina, J. Blümer, H. Bozdog, I. M. Brancus, E. Cantoni, A. Chiavassa, F. Cossavella, K. Daumiller, V. de Souza, F. Di Pierro, P. Doll, R. Engel, B. Fuchs, D. Fuhrmann, A. Gherghel-Lascu, H. J. Gils, R. Glasstetter, C. Grupen, D. Heck, J. R. Hörandel, T. Huege, K. H. Kampert, H. O. Klages, K. Link, P. Łuczak, H. J. Mathes, H. J. Mayer, J. Milke, B. Mitrica, C. Morello, J. Oehlschläger, S. Ostapchenko, M. Petcu, T. Pierog, H. Rebel, M. Roth, H. Schieler, F. G. Schröder, O. Sima, G. Toma, G. C. Trinchero, H. Ulrich, A. Weindl, J. Zabierowski   +51 more
doaj   +1 more source

Models with two Higgs doublets and a light pseudoscalar: A portal to dark matter and the possible (g−2)μ excess

Physics Letters B, 2022
In the context of a two-Higgs doublet model, supplemented by an additional light pseudoscalar Higgs boson and a stable isosinglet fermion, we consider the possibility of addressing simultaneously the discrepancy from the standard expectation of the ...
Giorgio Arcadi, Abdelhak Djouadi, Farinaldo da Silva Queiroz   +2 more
doaj   +1 more source

TELAMON: Monitoring of AGN with the Effelsberg 100-m Telescope in the Context of Astroparticle Physics [PDF]

, 2021
M. Kadler, U. Bach, D. Berge, S. Buson, D. Dorner, P. G. Edwards, Florian Eppel, M. Giroletti, Andrea Gokus, O. Hervet, Jonas Hessdoerfer, Shoko Koyama, A. Kraus, T. P. Krichbaum, E. Lindfors, K. Mannheim, Raniere de Menezes, R. Ojha, Georgios Filippos Paraschos, E. Pueschel, F. Rösch, E. Ros, Bernd Schleicher, J. Sinapius, J. Sitarek, J. Wilms, M. Zacharias   +26 more
openalex   +1 more source

Addressing the high-f problem in pseudo-Nambu–Goldstone boson dark energy models with dark matter–dark energy interaction

European Physical Journal C: Particles and Fields, 2020
We consider a dark energy scenario driven by a scalar field $$\phi $$ ϕ with a pseudo-Nambu–Goldstone boson (pNGB) type potential $$V(\phi )=\mu ^4 \left( 1+ \mathrm{cos}(\phi /f) \right) $$ V ( ϕ ) = μ 4 1 + cos ( ϕ / f ) .
Upala Mukhopadhyay, Avik Paul, Debasish Majumdar   +2 more
doaj   +1 more source

Cherenkov detectors in astroparticle physics

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2023
Talk given at the XI International Workshop on Ring Imaging Cherenkov Detectors, Edinburgh Sept ...
openaire   +4 more sources

Astroparticle Physics — A personal outlook [PDF]

Nuclear Physics B - Proceedings Supplements, 1996
22 pages, Latex, 1 table and 20 figures as ps files. Invited talk presented at the IVth Workshop on Theoretical and Phenomenological Aspects of Underground Physics (TAUP 95), Toledo, Spain, September 1995 - to appear in the ...
openaire   +2 more sources