Possibilities of Using Nuclear Targets in Investigations of Hadronic Interactions at High Energies

1970 ◽  
pp. 801-810
Author(s):  
W. Czyż
Keyword(s):  
Hadronic Interactions ◽  
High Energies ◽  
Nuclear Targets

scholarly journals Ultraperipheral vs. Ordinary Nuclear Interactions

Universe ◽  
2019 ◽  
Vol 6 (1) ◽  
pp. 4 ◽  
Author(s):  
I. M. Dremin
Keyword(s):  
Cross Sections ◽  
Heavy Nuclei ◽  
Perturbative Approach ◽  
Hadronic Interactions ◽  
High Energies ◽  
Nuclear Interactions ◽  
The Cross ◽  
Energy Thresholds

It is argued that the cross sections of ultraperipheral interactions of heavy nuclei can become comparable in value to those of their ordinary hadronic interactions at high energies. Simple estimates of corresponding “preasymptotic energy thresholds” are provided. The method of equivalent photons is compared with the perturbative approach. The situation at NICA/FAIR energies is discussed.

scholarly journals Studies of low-energy K- nuclear interactions by AMADEUS

2018 ◽  
Vol 182 ◽  
pp. 02035
Author(s):  
R. Del Grande ◽  
M. Bazzi ◽  
G. Belloti ◽  
A.M. Bragadireanu ◽  
D. Bosnar ◽  
...  
Keyword(s):  
Low Energy ◽  
Meson Decay ◽  
Hadronic Interactions ◽  
Correlation Studies ◽  
Active Target ◽  
Open Questions ◽  
Nuclear Targets ◽  
Controversial Nature ◽  
Shed Light ◽  
Resolution Data

The goal of the AMADEUS experiment is to shed light on unsolved fundamental issues in the non-perturbative strangeness QCD sector through the study of lowenergy K- hadronic interactions with light nuclear targets. The main open questions are the controversial nature of the Δ(1405) state, which is investigated in hyperon-pion correlation studies, and the possible existence of exotic antikaon multi-nucleon clusters, whose search in K- induced reactions is intimately related to the studies of the K- multi-nucleon absorption processes in hyperon-nucleon/nucleus channels. The DAΦNE collider at the INFN-LNF provides unique monochromatic low-momentum kaons from the φ meson decay almost at-rest, suitable for the AMADEUS studies. The KLOE detector is exploited as an active target, in order to obtain excellent acceptance and resolution data for K- nuclear capture on H, 4He, 9Be and 12C, both at-rest and in-flight.

scholarly journals Studies of the UHECR Mass Composition and Hadronic Interactions with the FD and SD of the Pierre Auger Observatory

2019 ◽  
Vol 209 ◽  
pp. 01042 ◽  
Author(s):  
J. M. Carceller
Keyword(s):  
Energy Range ◽  
Cross Section ◽  
Pierre Auger Observatory ◽  
Mass Composition ◽  
Air Showers ◽  
Arrival Times ◽  
Hadronic Interactions ◽  
High Energies ◽  
Systematic Uncertainties ◽  
Particle Arrival

With data on the depth of maximum Xmax collected during more than a decade of operation of the Pierre Auger Observatory, we report on the inferences on the mass composition of UHECRs in the energy range E = 1017.2 – 1019.6 eV and on the measurements of the proton-air cross section for energies up to 1018.5 eV. We also present the results on Xmax obtained using the information on the particle arrival times recorded by the SD stations allowing us to extend the Xmax measurements up to 1020 eV. The inferences on mass composition, in particular using the data of the SD, are subject to systematic uncertainties due to uncertainties in the description of hadronic interactions at ultra-high energies. We discuss this problem with respect to the properties of the muonic component of extensive air-showers as derived from the SD data.

MULTIFRACTALITY IN MULTIPARTICLE PRODUCTION AT HIGH ENERGIES

2000 ◽  
Vol 09 (05) ◽  
pp. 417-429 ◽  
Author(s):  
R. HASAN ◽  
M. MOHIB-UL HAQ ◽  
SAIFUL ISLAM
Keyword(s):  
Specific Heat ◽  
Power Law ◽  
Heavy Ions ◽  
Multiparticle Production ◽  
High Energies ◽  
The Mean ◽  
Multifractal Behavior ◽  
Generalized Dimensions ◽  
Nuclear Targets

We apply Takagi methodology to study the multifractal behavior of shower particles produced in 12 C -Em collisions at 3.6 A GeV and p-Em collisions at 400 GeV. The multiplicity moments are found to have a power law dependence on the mean multiplicity in the varying bin sizes for different nuclear targets. The values of the generalized dimensions are evaluated and found to decrease with q, thereby supporting multifractality in multiparticle production. The values of the multifractal specific heat are also evaluated for our data and for collisions of other heavy ions. We find that the multifractal specific heat seems to have a universal value (~1/4) that does not depend on the type of ions and their energy.

scholarly journals Monte Carlo simulation of the cosmic muon charge ratio

2021 ◽  
Vol 49 (1) ◽  
Author(s):  
Abd Al Karim Haj Ismail ◽  
◽  
Keyword(s):  
Monte Carlo ◽  
Charged Particles ◽  
Radial Distance ◽  
Cosmic Ray ◽  
Charge Ratio ◽  
Air Showers ◽  
Central European ◽  
Hadronic Interactions ◽  
High Energies ◽  
Deep Underground

The muonic component of air showers is sensitive to the mass and energy of the primary cosmic ray and is the most abundant component of charged particles arriving at the surface, and able to penetrate deep underground. The muon charge ratio, defined as the number of positive over negatively charged muons, is a very interesting quantity for the study of hadronic interactions at high energies and the nature of cosmic ray primaries. Furthermore, Earth's atmosphere is the development medium of cosmic air showers before they arrive at the ground. Therefore, variations in the density of the atmosphere between seasons must be studied. It is also very important to account for the zenith angular dependence of atmospheric muons, in particular for showers penetrating the atmosphere at high zenith angles. We present a study of the muon charge ratio using Monte Carlo simulations of two cosmic primaries, proton, and iron, of 100 TeV and 1 PeV energies, and with a zenith angle of 0° to 60°. The dependence on the direction of extensive air showers EAS and their radial distance appears to be very pronounced. In addition, the muon density is discussed assuming the Central European Atmosphere in June and December.

GENETIC PROGRAMMING FOR HADRONIC INTERACTIONS AT HIGH ENERGIES

2007 ◽  
Vol 18 (03) ◽  
pp. 329-334 ◽  
Author(s):  
M. Y. EL-BAKRY ◽  
A. RADI
Keyword(s):  
Experimental Data ◽  
Genetic Programming ◽  
Rapidity Distribution ◽  
Proton Proton ◽  
Hadronic Interactions ◽  
High Energies ◽  
Gp Model

Genetic programming (GP) has been used to discover a function that describes pseudo-rapidity distribution of created pions from proton–proton (p-p) interactions at high and ultra-high energies. The predicted distributions from the GP-based model are compared with the experimental data. The discovered function of GP model has proven matching better for experimental data.

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