Electron-momentum distribution function and spectral function in thet-Jmodel

1991 ◽  
Vol 44 (13) ◽  
pp. 6982-6990 ◽  
Author(s):  
Robert Eder ◽  
Klaus W. Becker
Keyword(s):  
Distribution Function ◽  
Spectral Function ◽  
Momentum Distribution ◽  
Electron Momentum ◽  
Electron Momentum Distribution ◽  
Momentum Distribution Function

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.

scholarly journals Slave-particle studies of the electron-momentum distribution in the low-dimensionalt-Jmodel

1993 ◽  
Vol 47 (22) ◽  
pp. 15192-15200 ◽  
Author(s):  
Shiping Feng ◽  
J. B. Wu ◽  
Z. B. Su ◽  
L. Yu
Keyword(s):  
Momentum Distribution ◽  
Electron Momentum ◽  
Electron Momentum Distribution

Survey of the experimental situation in B -decay

1958 ◽  
Vol 246 (1247) ◽  
pp. 454-462
Keyword(s):  
Angular Correlation ◽  
Momentum Distribution ◽  
Experimental Situation ◽  
Coupling Constants ◽  
Electron Momentum ◽  
Electron Momentum Distribution ◽  
The Past ◽  
Parity Conservation

Until recently our knowledge of the B-decay coupling constants came principally from studies of the electron momentum distribution, the half-lives of B-emitters and the B-v angular correlation. With the discovery of the breakdown of parity conservation we have both an increase in the number of coupling constants and new tools for investigating B-decay. The great stimulus that this has given B-spectroscopists is evidenced by the profusion of papers and preprints which has appeared in the interval and which for a time caused frequent changes in the B-decay situation. In the past month or so since the Israel Conference this spate seems to have subsided somewhat and the situation seems now to be quasi-static.

Resonant transfer and excitation: Dependence on projectile charge state and target-electron momentum distribution

1986 ◽  
Vol 34 (3) ◽  
pp. 2543-2546 ◽  
Author(s):  
J. A. Tanis ◽  
E. M. Bernstein ◽  
M. W. Clark ◽  
W. G. Graham ◽  
R. H. McFarland ◽  
...  
Keyword(s):  
Charge State ◽  
Momentum Distribution ◽  
Target Electron ◽  
Electron Momentum ◽  
Electron Momentum Distribution ◽  
Projectile Charge
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