Improved but low-x approximated relation betweenF 2 p scaling violation and gluon momentum distribution function

Pramana ◽  
1999 ◽  
Vol 52 (3) ◽  
pp. 257-267 ◽  
Author(s):  
A. Saikia
Keyword(s):  
Distribution Function ◽  
Momentum Distribution ◽  
Momentum Distribution Function ◽  
Low X ◽  
Gluon Momentum

The probe particle scattering cross-section off the many-fermion systems in the impulse approximation

2021 ◽  
Author(s):  
Yahya Younesizadeh ◽  
Fayzollah Younesizadeh
Keyword(s):  
Experimental Data ◽  
Distribution Function ◽  
Spectral Function ◽  
Cross Section ◽  
Response Function ◽  
Momentum Distribution ◽  
Impulse Approximation ◽  
System Response ◽  
Probe Particle ◽  
Momentum Distribution Function

In this work, we study the differential scattering cross-section (DSCS) in the first-order Born approximation. It is not difficult to show that the DSCS can be simplified in terms of the system response function. Also, the system response function has this property to be written in terms of the spectral function and the momentum distribution function in the impulse approximation (IA) scheme. Therefore, the DSCS in the IA scheme can be formulated in terms of the spectral function and the momentum distribution function. On the other hand, the DSCS for an electron off the [Formula: see text] and [Formula: see text] nuclei is calculated in the harmonic oscillator shell model. The obtained results are compared with the experimental data, too. The most important result derived from this study is that the calculated DSCS in terms of the spectral function has a high agreement with the experimental data at the low-energy transfer, while the obtained DSCS in terms of the momentum distribution function does not. Therefore, we conclude that the response of a many-fermion system to a probe particle in IA must be written in terms of the spectral function for getting accurate theoretical results in the field of collision. This is another important result of our study.

Momentum distribution function for the two-dimensionalt-Jmodel

1992 ◽  
Vol 46 (21) ◽  
pp. 14313-14316 ◽  
Author(s):  
Rajiv R. P. Singh ◽  
Rodney L. Glenister
Keyword(s):  
Distribution Function ◽  
Momentum Distribution ◽  
Momentum Distribution Function
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