On the problem of high-energy nucleon–nucleus interactions

1968 ◽  
Vol 46 (10) ◽  
pp. S715-S717 ◽  
Author(s):  
N. M. Gerasimova
Keyword(s):  
Experimental Data ◽  
Angular Distribution ◽  
Target Nucleus ◽  
High Energy Physics ◽  
High Energy ◽  
Peripheral Collision ◽  
Secondary Interaction ◽  
Incident Nucleon ◽  
Thermodynamic Equations ◽  
Energy Physics

On the basis of the analysis of high-energy jets performed in Cracow's Laboratory of High Energy Physics (Holynski et al. 1966) this paper proposes a new model of high-energy nucleon–nucleus interactions. The double maximum angular distribution of the high-energy jets has been explained as the result of the peripheral collision of the incident nucleon and one of the nucleons of the target nucleus and as the consequent central interaction of the now-produced "fast" fireball with another nucleon of the nucleus. The number of generated particles has been estimated from the usual thermodynamic equations. The conditions necessary for the secondary interaction (in the nucleus) of the π mesons produced in the decay of the "slow" fireball have been found. In the light of a comparison of our estimated results with experimental data a possible model of the fireball is discussed.

TCAD simulations of non-irradiated and irradiated low-gain avalanche diodes and comparison with measurements

2022 ◽  
Vol 17 (01) ◽  
pp. C01022
Author(s):  
T. Croci ◽  
A. Morozzi ◽  
F. Moscatelli ◽  
V. Sola ◽  
G. Borghi ◽  
...  
Keyword(s):  
Experimental Data ◽  
High Energy Physics ◽  
Signal To Noise Ratio ◽  
Damage Model ◽  
Surface Damage ◽  
High Energy ◽  
Silicon Detectors ◽  
Avalanche Diodes ◽  
Silicon Sensors ◽  
Energy Physics

Abstract In this work, the results of Technology-CAD (TCAD) device-level simulations of non-irradiated and irradiated Low-Gain Avalanche Diode (LGAD) detectors and their validation against experimental data will be presented. Thanks to the intrinsic multiplication of the charge within these silicon sensors, it is possible to improve the signal to noise ratio thus limiting its drastic reduction with fluence, as it happens instead for standard silicon detectors. Therefore, special attention has been devoted to the choice of the avalanche model, which allows the simulation findings to better fit with experimental data. Moreover, a radiation damage model (called “New University of Perugia TCAD model”) has been fully implemented within the simulation environment, to have a predictive insight into the electrical behavior and the charge collection properties of the LGAD detectors, up to the highest particle fluences expected in the future High Energy Physics (HEP) experiments. This numerical model allows to consider the comprehensive bulk and surface damage effects induced by radiation on silicon sensors. By coupling the “New University of Perugia TCAD model” with an analytical model that describes the mechanism of acceptor removal in the multiplication layer, it has been possible to reproduce experimental data with high accuracy, demonstrating the reliability of the simulation framework.

scholarly journals The Duals of Fusion Frames for Experimental Data Transmission Coding of High Energy Physics

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Jinsong Leng ◽  
Qixun Guo ◽  
Tingzhu Huang
Keyword(s):  
Experimental Data ◽  
Data Transmission ◽  
High Energy Physics ◽  
Matrix Representation ◽  
High Energy ◽  
Fusion Frames ◽  
Fusion Frame ◽  
The Matrix ◽  
Frame System ◽  
Energy Physics

The experimental data transmission is an important part of high energy physics experiment. In this paper, we connect fusion frames with the experimental data transmission implement of high energy physics. And we research the utilization of fusion frames for data transmission coding which can enhance the transmission efficiency, robust against erasures, and so forth. For this application, we first characterize a class of alternate fusion frames which are duals of a given fusion frame in a Hilbert space. Then, we obtain the matrix representation of the fusion frame operator of a given fusion frame system in a finite-dimensional Hilbert space. By using the matrix representation, we provide an algorithm for constructing the dual fusion frame system with its local dual frames which can be used as data transmission coder in the high energy physics experiments. Finally, we present a simulation example of data coding to show the practicability and validity of our results.

GENETIC PROGRAMING MODELING FOR NUCLEUS–NUCLEUS COLLISIONS

2009 ◽  
Vol 20 (11) ◽  
pp. 1817-1825 ◽  
Author(s):  
EL-SAYED El-DAHSHAN ◽  
AMR RADI ◽  
MAHMOUD Y. El-BAKRY
Keyword(s):  
Experimental Data ◽  
Nuclear Emulsion ◽  
High Energy Physics ◽  
Heavy Ion ◽  
High Energy ◽  
Complex Data ◽  
Training Set ◽  
Powerful Technique ◽  
Ion Collisions ◽  
Energy Physics

High Energy Physics (HEP), due to the vast and complex data expected from current and future experiments, is in need of powerful and efficient techniques for various analysis tasks. Genetic Programing (GP) is a powerful technique that can be used such complex tasks. In this paper, Genetic programing is used for modeling the functions that describe the pseudo-rapidity distribution of the shower particles for 12 C , 16 O , 28 Si and 32 S on nuclear emulsion and also to predict the distributions that are not present in the training set and matched them effectively. The proposed method shows a better fitting with experimental data. The GP prediction results prove a strong presence modeling in heavy ion collisions.

Development of Silicon Sensor Characterization System for Future High Energy Physics Experiments

2015 ◽  
Vol 3 (1) ◽  
pp. 41-45
Author(s):  
Preeti Kumari ◽  
◽  
Kavita Lalwani ◽  
Ranjit Dalal ◽  
Ashutosh Bhardwaj ◽  
...  
Keyword(s):  
High Energy Physics ◽  
High Energy ◽  
Physics Experiments ◽  
Silicon Sensor ◽  
Energy Physics
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