Null Correlation Method for Estimation of the Primary Energies of Cosmic Ray Jets

1973 ◽  
Vol 51 (8) ◽  
pp. 804-813
Author(s):  
Robert E. Streitmatter
Keyword(s):  
Monte Carlo ◽  
Center Of Mass ◽  
Monte Carlo Model ◽  
Correlation Method ◽  
Cosmic Ray ◽  
High Energy ◽  
Cloud Chamber ◽  
New Method ◽  
Cosmic Ray Interactions

A new method for estimating the center of mass of high energy cosmic ray interactions is introduced and tested with a simple Monte Carlo model and a small number of cloud chamber jets.

scholarly journals High energy cosmic ray interactions and UHECR composition problem

2019 ◽  
Vol 210 ◽  
pp. 02001
Author(s):  
Sergey Ostapchenko
Keyword(s):  
Experimental Data ◽  
Monte Carlo ◽  
Cosmic Rays ◽  
Cosmic Ray ◽  
High Energy ◽  
Ultra High Energy ◽  
Hadronic Interactions ◽  
High Energy Cosmic Rays ◽  
Cosmic Ray Interactions ◽  
Composition Problem

The differences between contemporary Monte Carlo generators of high energy hadronic interactions are discussed and their impact on the interpretation of experimental data on ultra-high energy cosmic rays (UHECRs) is studied. Key directions for further model improvements are outlined. The prospect for a coherent interpretation of the data in terms of the UHECR composition is investigated.

scholarly journals Neutrino and γ-ray Emission from the Core of NGC1275 by Magnetic Reconnection: GRMHD Simulations and Radiative Transfer/Particle Calculations

2018 ◽  
Vol 14 (S342) ◽  
pp. 184-188
Author(s):  
J. C. Rodríguez-Ramírez ◽  
Elisabete M. de Gouveia Dal Pino ◽  
R. Alves Batista
Keyword(s):  
Monte Carlo ◽  
Radiative Transfer ◽  
Magnetic Reconnection ◽  
Neutrino Flux ◽  
Cosmic Ray ◽  
High Energy ◽  
Emission Model ◽  
The Core ◽  
Very High Energy ◽  
General Relativistic

AbstractVery high energy (VHE) emission has been detected from the radio galaxy NGC1275, establishing it as a potential cosmic-ray (CR) accelerator and a high energy neutrino source. We here study neutrino and γ-ray emission from the core of NGC1275 simulating the interactions of CRs assumed to be accelerated by magnetic reconnection, with the accreting plasma environment. To do this, we combine (i) numerical general relativistic (GR) magneto-hydrodynamics (MHD), (ii) Monte Carlo GR leptonic radiative transfer and, (iii) Monte Carlo interaction of CRs. A leptonic emission model that reproduces the SED in the [103-1010.5] eV energy range is used as the background target for photo-pion interactions+electromagnetic cascading. CRs injected with the power-law index κ=1.3 produce an emission profile that matches the VHE tail of NGC1275. The associated neutrino flux, below the IceCube limits, peaks at ∼PeV energies. However, coming from a single source, this neutrino flux may be an over-estimation.

Observation of attenuation behaviour of hadrons in extremely high energy cosmic ray interactions: New hadronic state?

1994 ◽  
Vol 424 (2) ◽  
pp. 241-287 ◽  
Author(s):  
T. Arisawa ◽  
Y. Fujimoto ◽  
S. Hasegawa ◽  
K. Honda ◽  
H. Ito ◽  
...  
Keyword(s):  
Cosmic Ray ◽  
High Energy ◽  
Cosmic Ray Interactions ◽  
Hadronic State

scholarly journals Measurements of UHECR Mass Composition by Telescope Array

2019 ◽  
Vol 210 ◽  
pp. 01008
Author(s):  
William Hanlon
Keyword(s):  
Monte Carlo ◽  
Cosmic Ray ◽  
High Energy ◽  
Mass Composition ◽  
Ultra High Energy ◽  
Fluorescence Detector ◽  
Telescope Array ◽  
Second Moments ◽  
Systematic Uncertainties ◽  
Surface Detector

Telescope Array (TA) has recently published results of nearly nine years of Xmax observations providing its highest statistics measurement of ultra high energy cosmic ray (UHECR) mass composition to date for energies exceeding 1018.2 eV. This analysis measured agreement of observed data with results expected for four different single elements. Instead of relying only on the first and second moments of Xmax distributions, we employ a morphological test of agreement between data and Monte Carlo to allow for systematic uncertainties in data and in current UHECR hadronic models. Results of this latest analysis and implications of UHECR composition observed by TA are presented. TA can utilize different analysis methods to understand composition as both a crosscheck on results and as a tool to understand systematics affecting Xmax measurements. The different analysis efforts utilizing fluorescence detector stereo, surface detector and fluorescence detector hybrid, and surface detector-only, currently underway at TA performed to understand composition are also discussed.

scholarly journals High-energy neutrinos from cosmic ray interactions in the local bubble

2020 ◽  
Vol 101 (12) ◽  
Author(s):  
M. Bouyahiaoui ◽  
M. Kachelrieß ◽  
D. V. Semikoz
Keyword(s):  
Cosmic Ray ◽  
High Energy ◽  
Local Bubble ◽  
Cosmic Ray Interactions ◽  
High Energy Neutrinos
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