Results 31 to 40 of about 401,472 (327)
High energy neutrino astronomy
Comptes Rendus. Physique, 2005 Traditionally photons are used to study the Universe, but, at high energies, absorption of photons renders it opaque. Neutrinos, interacting only weakly, are good alternative candidates to probe the high energy Universe over cosmological distances. Pioneering experiments utilizing the neutrino as messenger have been taking data for about a decade, but ...
Stephan Hundertmark, Antoine Kouchner
openaire +3 more sources
Depth of maximum of air-shower profiles: testing the compatibility of measurements performed at the Pierre Auger Observatory and the Telescope Array experiment [PDF]
EPJ Web of Conferences, 2019 At the Pierre Auger Observatory and the Telescope Array, the measurements of depths of maximum of airshower profiles, Xmax, are performed using direct observations of the longitudinal development of showers with the help of the fluorescence telescopes ...
Yushkov Alexey +8 more
doaj +1 more source
Next-to-leading power threshold effects for inclusive and exclusive processes with final state jets
Journal of High Energy Physics, 2020 It is well known that cross-sections in perturbative QCD receive large corrections from soft and collinear radiation, which can be resummed to all orders in the coupling.
Melissa van Beekveld +3 more
doaj +1 more source
TeV Particle Astrophysics II: Summary comments [PDF]
, 2006 A unifying theme of this conference was the use of different approaches to understand astrophysical sources of energetic particles in the TeV range and above.
+42 more
core +2 more sources
An analytic analysis of the pion decay constant in three-flavoured chiral perturbation theory
European Physical Journal C: Particles and Fields, 2017 A representation of the two-loop contribution to the pion decay constant in SU(3) chiral perturbation theory is presented. The result is analytic up to the contribution of the three (different) mass sunset integrals, for which an expansion in their ...
B. Ananthanarayan +2 more
doaj +1 more source
High energy neutrino astronomy
Nuclear Physics B - Proceedings Supplements, 2002 Abstract After a long period of development, high energy neutrino astrophysics is approaching a level of sensitivity which reaches below the upper bounds on extraterrestrial neutrino fluxes derived from observed fluxes of cosmics rays and gamma rays.
openaire +3 more sources
The Phenomena of High Energy Astrophysics [PDF]
, 2003 A brief summary of some highlights in the study of high energy astrophysical sources over the past decade is presented. It is argued that the great progress that has been made derives largely from the application of new technology to observation ...
Blandford, R. D.
core +3 more sources
High energy gamma-ray astronomy
Nuclear Physics B - Proceedings Supplements, 2005 10 pages, 12 figures, to appear as Plenary Paper, Proceedings of the Eigth International Workshop on Topics in Astroparticle and Underground Physics (TAUP2003), University of Washington, Seattle, USA, 5-9 September 2003. High quality versions of the manuscript (ps-file) and of figures 2 and 12 can be found at http://edoc.mpg.de/60181.
openaire +5 more sources
Rényi divergences from Euclidean quenches
Journal of High Energy Physics, 2020 We study the generalisation of relative entropy, the Rényi divergence D α (ρ∥ρ β ) in 2d CFTs between an excited state density matrix ρ, created by deforming the Hamiltonian, and the thermal density matrix ρ β .
Barsha G. Chowdhury +2 more
doaj +1 more source
Very High Energy Gamma‐Ray Astronomy
Publications of the Astronomical Society of the Pacific, 1999 We present a review of the current status of very high energy gamma-ray astronomy. The development of the atmospheric Cherenkov imaging technique for ground-based gamma-ray astronomy has led to a rapid growth in the number of observatories. The detection of TeV gamma rays from Active Galactic Nuclei was unexpected and is providing new insights into the
Catanese, Michael, Weekes, Trevor C.
openaire +2 more sources