Nucleon Properties at Finite Temperature in the Extended Quark-Sigma Model
American Journal of Physics and Applications
Volume 2, Issue 2, March 2014, Pages: 46-51
Received: Jan. 30, 2014; Published: Mar. 10, 2014
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Authors
M. Abu-Shady, Department of Mathematics, Faculty of Science, Menoufia University, Egypt
A. K. Abu-Nab, Department of Mathematics, Faculty of Science, Menoufia University, Egypt
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Abstract
Hadron properties are studied at hot medium using the quark sigma model. The quark sigma model is extended to include eighth-order of mesonic interactions based on some aspects of quantum chromodynamic (QCD) theory. The extended effective potential tends to the original effective potential when the coupling between the higher order mesonic interactions equal to zero. The field equations have been solved in the mean-field approximation by using the extended iteration method. We found that the nucleon mass increases with increasing temperature and the magnetic moments of proton and neutron increase with increasing temperature. A comparison is presented with recent previous works and other models. We conclude that higher-order mesonic interactions play an important role in changing the behavior of nucleon properties at finite temperature. In addition, the deconfinement phase transition is satisfied in the present model.
Keywords
The Linear Sigma Model, Nucleon Properties, Finite Temperature Field Theory
To cite this article
M. Abu-Shady, A. K. Abu-Nab, Nucleon Properties at Finite Temperature in the Extended Quark-Sigma Model, American Journal of Physics and Applications. Vol. 2, No. 2, 2014, pp. 46-51. doi: 10.11648/j.ajpa.20140202.11
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