Results 21 to 30 of about 21,959 (162)
Next-to-leading power threshold effects for inclusive and exclusive processes with final state jets
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
An analytic analysis of the pion decay constant in three-flavoured chiral perturbation theory
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
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
RECENT DEVELOPMENTS IN ULTRA-HIGH ENERGY NEUTRINO ASTRONOMY
We outline the current situation in ultrahigh energy (UHE) cosmic ray physics, pointing out the remaining problems, in particular the puzzle concerning the origin of the primary radiation and the role of neutrino astronomy for locating the sources ...
Peter K. F. Grieder
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Rényi divergences from Euclidean quenches
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
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High energy gamma-ray astronomy
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
Very High Energy Gamma‐Ray Astronomy
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.
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High-energy neutrino astronomy
Neutrinos constitute a unique probe since they escape from their sources, travel undisturbed on cosmological distances and are produced in high-energy (HE) hadronic processes. In particular they would allow a direct detection and unambiguous identification of the acceleration sites of HE baryonic cosmic rays (CR), which remain unknown.
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iid2022: a workshop on statistical methods for event data in astronomy
We review the iid2022 workshop on statistical methods for X-ray and γ-ray astronomy and high–energy astrophysics event data in astronomy, held in Guntersville, AL, on Nov. 15–18 2022.
Eric D. Feigelson +1 more
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High Energy Neutrino Astronomy
Opening Plenary Talk at the "XIX International Workshop on Neutrino Telescopes" on line - 18-26 February ...
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