Results 11 to 20 of about 310,857 (281)
ATLAS and ultra high energy cosmic ray physics
After a brief introduction to extended air shower cosmic ray physics the current and future deployment of forward detectors at ATLAS is discussed along with the various aspects of the current and future ATLAS programs to explore hadronic physics.
Pinfold James
doaj +2 more sources
A ground-level enhancement (GLE) event is a sudden increase in cosmic ray intensity originated by solar sources and recorded by ground-based detectors. GLEs are invariably associated with large solar flares that can release and accelerate solar particles
Helen Mavromichalaki +10 more
doaj +1 more source
Cosmic vortons and particle physics constraints [PDF]
We investigate the cosmological consequences of particle physics theories that admit stable loops of superconducting cosmic string - {\it vortons}. General symmetry breaking schemes are considered, in which strings are formed at one energy scale and subsequently become superconducting in a secondary phase transition at what may be a considerably lower ...
Brandenberger, R. +3 more
openaire +3 more sources
Cosmic neutrino flux and spin flavor oscillations in intergalactic medium
The ultra high energy (UHE) cosmic neutrinos are expected to play a pivotal role in the disquisition of physics beyond the standard model of particle physics as well as serve as an ideal cosmic messengers.
Ashutosh Kumar Alok +2 more
doaj +1 more source
Statistical Physics for Cosmic Structures [PDF]
The physics of scale-invariant and complex systems is a novel interdisciplinary field. Its ideas allow us to look at natural phenomena in a radically new and original way, eventually leading to unifying concepts independent of the detailed structure of the systems.
A. Gabrielli +3 more
openaire +5 more sources
The Physics of Cosmic Acceleration [PDF]
The discovery that the cosmic expansion is accelerating has been followed by an intense theoretical and experimental response in physics and astronomy. The discovery implies that our most basic notions about how gravity works are violated on cosmological distance scales. A simple fix is to introduce a cosmological constant into the field equations for
Caldwell, Robert R., Kamionkowski, Marc
openaire +3 more sources
We have started up the ALPACA (Andes Large area PArticle detector for Cosmic ray physics and Astronomy) project. The ALPACA experiment is composed of an 83,000 m2 air shower array and a 5,400 m2 underground muon detector array to make wide field-of-view ...
Takita Masato
doaj +2 more sources
Chapter 4 Cosmic-Ray Physics * [PDF]
Abstract In the first part of this Chapter the present state of knowledge from the observations of cosmic rays between 1013 and 1020 eV is summarized. This is not intended to be a complete review, but rather a broad overview of the relevant processes involving cosmic rays, including the astrophysical environments in which they take place.
Piazzoli,Benedetto D’Ettorre +17 more
openaire +3 more sources
ARGO-YBJ: Highlights and Prospects
The ARGO-YBJ experiment has been in stable data taking for 5 years at the YangBaJing Cosmic Ray Laboratory (Tibet, P.R. China, 4300 m a.s.l., 606 g/cm2). With a duty-cycle greater than 86% the detector collected about 51011 events in a wide energy range,
Giuseppe Di Sciascio
doaj +1 more source
The origin of galactic cosmic rays [PDF]
The origin of galactic cosmic rays is one of the most interesting unsolved problems in astroparticle physics. Experimentally, the problem is attacked by a multi-disciplinary effort, namely by direct measurements of cosmic rays above the atmosphere, by ...
Aharonian +54 more
core +3 more sources

