scholarly journals The QCD strong coupling constant at low energies: a non-extensive treatment

2021 ◽  
Vol 57 (2) ◽  
Author(s):  
H. Nematollahi ◽  
K. Javidan ◽  
M. M. Yazdanpanah
Keyword(s):  
Strong Coupling ◽  
Strong Coupling Constant ◽  
Coupling Constant ◽  
Low Energies

scholarly journals The Bose-Einstein Correlations and the Strong Coupling Constant at Low Energies

Physics ◽  
2019 ◽  
Vol 1 (1) ◽  
pp. 59-66
Author(s):  
Gideon Alexander ◽  
Boris Blok
Keyword(s):  
Strong Coupling ◽  
Center Of Mass ◽  
Strong Coupling Constant ◽  
Theory Approach ◽  
Coupling Constant ◽  
Alternative Approach ◽  
Low Energies ◽  
Perturbative Regime ◽  
Bose Einstein ◽  
Short Range Correlations

It is shown that α s ( E ) , the strong coupling constant, can be determined in the non-perturbative regime from Bose-Einstein correlations (BEC). The obtained α s ( E ) , where E is the energy of the hadron in the center of mass reference frame of the di-hadron pair, is in agreement with the prescriptions dealt with in the Analytic Perturbative Theory approach. It also extrapolates smoothly to the standard perturbative α s ( E ) at higher energies. Our results indicate that BEC dimension can be considered as an alternative approach to the short-range correlations between hadrons.

scholarly journals EMC effect at small Bjorken x values

2019 ◽  
Vol 204 ◽  
pp. 05002
Author(s):  
A. Kotikov ◽  
B. Shaikhatdenov ◽  
P. Zhang
Keyword(s):  
Strong Coupling ◽  
Gluon Density ◽  
Strong Coupling Constant ◽  
Coupling Constant ◽  
Emc Effect ◽  
Bjorken X

The Bessel-inspired behavior of parton densities at small Bjorken x values is used along with “frozen” and analytic modifications of the strong coupling constant [1] to study the so-called EMC effect. Among other results, this approach allowed predicting small x behavior of the gluon density in nuclei.

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