Features about pion production in 2.1A and 3.7AGeV 4He–nucleus interactions up to and out of kinematical limit-Reference-Cited by-同舟云学术

Features about pion production in 2.1A and 3.7AGeV 4He–nucleus interactions up to and out of kinematical limit

Published:2018-03 Issue:03 Volume:27 Page:1850026
ISSN:0218-3013
Container-title:International Journal of Modern Physics E
language:en
Short-container-title:Int. J. Mod. Phys. E

Author:

Abdelsalam A.¹²,Badawy B. M.²³,Amer H. A.⁴,Osman W.¹²,El-Ashmawy M. M.⁴,Abdallah N.²⁴

Affiliation:

1. Physics Department, Faculty of Science, Cairo University, Giza, Egypt

2. Mohammad El–Nadi High Energy Lab, Faculty of Science, Cairo University, Egypt

3. Reactor Physics Department, Nuclear Research Center, Atomic Energy Authority, Egypt

4. Nuclear and Radiological Regulatory Authority, NRRA, Egypt

Abstract

The shower particle multiplicity characteristics are studied in 2.1A and 3.7A GeV 4He interactions with emulsion nuclei. The dependencies on emission direction, energy, target size, and centrality are examined. The data are compared with the simulation of the modified FRITIOF model. The forward emitted pion multiplicity distributions exhibit KNO scaling. The decay or peaking shaped curves characterize the pion multiplicity distributions. The decay shape is suggested to be due to a single source contribution and the peaking one results from a multisource superposition. The forward emitted pion is created from fireball or hadronic matter. The target nucleus is the origin of the backward one, regarding the nuclear limiting fragmentation hypothesis.

Publisher

World Scientific Pub Co Pte Lt

Subject

General Physics and Astronomy,Nuclear and High Energy Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S021830131850026X

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