Pion exchange in inclusive neutron production at very high energies

1976 ◽  
Vol 16 (4) ◽  
pp. 97-101 ◽  
Author(s):  
E. Ferrari ◽  
M. Lusignoli ◽  
Y. Srivastava
Keyword(s):  
Neutron Production ◽  
Pion Exchange ◽  
High Energies ◽  
Very High

scholarly journals Simulation of neutron production in hadron-nucleus and nucleus-nucleus interactions in Geant4

2019 ◽  
Vol 204 ◽  
pp. 03004
Author(s):  
Aida Galoyan ◽  
Alberto Ribon ◽  
Vladimir Uzhinsky
Keyword(s):  
Experimental Data ◽  
Energy Range ◽  
Collision Energy ◽  
Asymptotic Properties ◽  
Slow Neutron ◽  
Neutron Production ◽  
Projectile Energy ◽  
Neutron Spectra ◽  
High Energies ◽  
Very High

Studying experimental data obtained at ITEP [1] on neutron production in interactions of protons with various nuclei in the energy range from 747 MeV up to 8.1 GeV, we have found that slow neutron spectra have scaling and asymptotic properties [2]. The spectra weakly depend on the collision energy at momenta of projectile protons larger than 5 – 6 GeV/c. These properties are taken into account in the Geant4 Fritiof (FTF) model. The improved FTF model describes as well as the Geant4 Bertini model the experimental data on neutron production by 1.2 GeV and 1.6 GeV protons on targets (Fe, Pb) [3] and by 3.0 GeV protons on various targets (Al, Fe, Pb) [4]. For neutron production in antiproton-nucleus interactions, it is demonstrated that the FTF results are in a satisfactory agreement with experimental data of the LEAR collaboration [5]. The FTF model gives promising results for neutron production in nucleus - nucleus interactions at projectile energy 1 – 2 GeV per nucleon [6]. The observed properties allow one to predict neutron yields in the nucleus-nucleus interactions at high and very high energies. Predictions for the NICA/MPD experiment at JINR are presented.

Topological cross sections in hadron-nucleon and hadron-nucleus collisions at very high energies

1983 ◽  
Vol 399 (2) ◽  
pp. 515-528 ◽  
Author(s):  
H.J. Pirner ◽  
W.Q. Chao ◽  
M.K. Hegab
Keyword(s):  
Cross Sections ◽  
High Energies ◽  
Very High

ELASTIC SCATTERING WITH THE LIPATOV POMERON

1992 ◽  
Vol 07 (26) ◽  
pp. 2415-2421 ◽  
Author(s):  
A. P. CONTOGOURIS ◽  
F. LEBESSIS
Keyword(s):  
Asymptotic Behavior ◽  
Elastic Scattering ◽  
Specific Model ◽  
Scattering Data ◽  
High Energies ◽  
Very High

First a unitarization procedure for an amplitude with the asymptotic behavior of the Lipatov Pomeron is presented; it amounts to its iteration along the s-channel. Next, based on this procedure, a specific model is considered and applied to the description of elastic scattering data at very high energies; it is shown that it leads to a fair description of them.

Small-angle proton-proton elastic scattering at very high energies (460 GeV2 < s < 2900 GeV2)

1972 ◽  
Vol 39 (5) ◽  
pp. 663-667 ◽  
Author(s):  
G. Barbiellini ◽  
M. Bozzo ◽  
P. Darriulat ◽  
G.Diambrini Palazzi ◽  
G. De Zorzi ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Small Angle ◽  
Proton Proton ◽  
High Energies ◽  
Proton Elastic Scattering ◽  
Very High

Site-specific excitation in molecules at very high energies: changes in ionization patterns of 1,1,1-trifluoroethane (CF3CH3)

1984 ◽  
Vol 88 (25) ◽  
pp. 6098-6100 ◽  
Author(s):  
Klaus Mueller-Dethlefs ◽  
Michael Sander ◽  
Leslie A. Chewter ◽  
Edward W. Schlag
Keyword(s):  
Site Specific ◽  
High Energies ◽  
Very High

scholarly journals pp interaction at very high energies in cosmic ray experiments

2014 ◽  
Vol 41 (11) ◽  
pp. 115003 ◽  
Author(s):  
A Kendi Kohara ◽  
Erasmo Ferreira ◽  
Takeshi Kodama
Keyword(s):  
Cosmic Ray ◽  
High Energies ◽  
Very High

scholarly journals High-energy emission from gamma-ray bursts

2018 ◽  
Vol 27 (13) ◽  
pp. 1842003 ◽  
Author(s):  
Lara Nava
Keyword(s):  
Gamma Ray ◽  
Theoretical Models ◽  
High Energy ◽  
Gamma Ray Bursts ◽  
Quality Of Data ◽  
Large Area ◽  
High Energies ◽  
Energy Emission ◽  
High Energy Emission ◽  
Very High

The number of gamma-ray bursts (GRBs) detected at high energies ([Formula: see text][Formula: see text]GeV) has seen a rapid increase over the last decade, thanks to observations from the Fermi-Large Area Telescope. The improved statistics and quality of data resulted in a better characterization of the high-energy emission properties and in stronger constraints on theoretical models. In spite of the many achievements and progresses, several observational properties still represent a challenge for theoretical models, revealing how our understanding is far from being complete. This paper reviews the main spectral and temporal properties of [Formula: see text][Formula: see text]GeV emission from GRBs and summarizes the most promising theoretical models proposed to interpret the observations. Since a boost for the understanding of GeV radiation might come from observations at even higher energies, the present status and future prospects for observations at very-high energies (above [Formula: see text][Formula: see text]100[Formula: see text]GeV) are also discussed. The improved sensitivity of upcoming facilities, coupled to theoretical predictions, supports the concrete possibility for future ground GRB detections in the high/very-high energy domain.

scholarly journals Future Facilities for Gamma-Ray Pulsar Studies

2004 ◽  
Vol 218 ◽  
pp. 399-406
Author(s):  
D. J. Thompson
Keyword(s):  
Particle Acceleration ◽  
Neutron Stars ◽  
Gamma Ray ◽  
Large Area ◽  
Space Telescope ◽  
High Energies ◽  
Interaction Processes ◽  
Very High ◽  
Insight Into

Pulsars seen at gamma-ray energies offer insight into particle acceleration to very high energies, along with information about the geometry and interaction processes in the magnetospheres of these rotating neutron stars. During the next decade, a number of new gamma-ray facilities will become available for pulsar studies. This brief review describes the motivation for gamma-ray pulsar studies, the opportunities for such studies, and some specific discussion of the capabilities of the Gamma-ray Large Area Space Telescope (GLAST) Large Area Telescope (LAT) for pulsar measurements.

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