513 citations · 3.3k across the 37 of their papers we have counts for
7 papers · 1 filter
Very-High Energy Gamma Astrophysics
Alessandro De Angelis, Oriana Mansutti, Massimo Persic
High-energy photons are a powerful probe for astrophysics and for fundamental physics under extreme conditions. During the recent years, our knowledge of the most violent phenomena…
Constraints on Large-Scale Magnetic Fields from the Auger Results
Alessandro De Angelis, Massimo Persic, Marco Roncadelli
A recent article from the Pierre Auger Collaboration links the direction of charged cosmic rays to possible extragalactic sites of emission. The correlation of the direction of suc…
Intergalactic absorption and blazar gamma-ray spectra
Massimo Persic, Alessandro De Angelis
The distribution of TeV spectral slopes versus redshift for currently known TeV blazars (16 sources with z<0.21, and one with z>0.25) is essentially a scatter plot with hardly any…
Search for one large extra dimension with the DELPHI detector at LEP2
S. Ask, V. Hedberg, F. -L. Navarria
Single photons detected by the DELPHI experiment at LEP2 in the years 1997-2000 are used to investigate the existence of a single extra dimension in a modifed ADD scenario with sli…
Evidence for a new light spin-zero boson from cosmological gamma-ray propagation?
Alessandro De Angelis, Marco Roncadelli, Oriana Mansutti
Recent findings by Imaging Atmospheric Cherenkov Telescopes indicate a large transparency of the Universe to gamma rays, which can be hardly explained within the current models of…
Axion-Like Particles, Cosmic Magnetic Fields and Gamma-Ray Astrophysics
Alessandro De Angelis, Oriana Mansutti, Marco Roncadelli
Axion-Like Particles (ALPs) are predicted by many extensions of the Standard Model and give rise to characteristic dimming and polarization effects in a light beam travelling in a…