NUCLEAR MATTER WITH CONSTITUENT MESON QUANTA

1990 ◽  
Vol 05 (17) ◽  
pp. 3391-3399 ◽  
Author(s):  
AMRUTA MISHRA ◽  
H. MISHRA ◽  
S.P. MISRA
Keyword(s):  
Field Theory ◽  
Nuclear Matter ◽  
Mass Shell ◽  
Mean Field ◽  
S Wave ◽  
Field Approach ◽  
Physical Insight ◽  
The Mean

We discuss here some nonperturbative techniques of field theory, where we dress nuclear matter as a whole with off-mass-shell pions. Here s-wave pion pairs simulate the effect of σ-meson of the mean field approach of Walecka. The signatures are in agreement with earlier results along with new physical insight.

Mean field approach applied to surface deposition on a modified electrode

2021 ◽  
Author(s):  
Pedro Marcelo Pasinetti ◽  
Veronica I. Paz Zanini ◽  
Antonio Ramirez-Pastor ◽  
Oscar Alejandro Pinto
Keyword(s):  
Field Theory ◽  
Modified Electrode ◽  
Electrode Surface ◽  
Mean Field Theory ◽  
Mean Field ◽  
Surface Deposition ◽  
Field Approach ◽  
The Mean

In this work we study the deposition phenomena on a modified electrode in the framework of the mean field theory. The electrode surface is modified by the irreversible deposition of...

THE MEAN π-FIELD SHOULD BE CALCULATED IN A RELATIVISTIC MEAN FIELD THEORY FOR NUCLEAR MATTER

1999 ◽  
Vol 08 (01) ◽  
pp. 39-48 ◽  
Author(s):  
CHUN-YUAN GAO ◽  
HUA GUO ◽  
QI-REN ZHANG
Keyword(s):  
Field Theory ◽  
Nuclear Matter ◽  
Mean Field Theory ◽  
Mean Field ◽  
Qualitative Result ◽  
Relativistic Mean Field Theory ◽  
Derivative Coupling ◽  
Relativistic Mean Field ◽  
Model Independent ◽  
The Mean

We extend our work on the finite value of mean π-field in the relativistic mean field theory to the derivative coupling models for nuclear matter proposed by Zimanyi and Moszkowski. We show that a finite mean π-field may lower the energy per nucleon at a not too high density for all of those models. This qualitative result seems true in general and is model independent, although the quantitative details may be different for different models.

scholarly journals Evidence of exactness of the mean-field theory in the nonextensive regime of long-range classical spin models

2000 ◽  
Vol 61 (17) ◽  
pp. 11521-11528 ◽  
Author(s):  
Sergio A. Cannas ◽  
A. C. N. de Magalhães ◽  
Francisco A. Tamarit
Keyword(s):  
Field Theory ◽  
Long Range ◽  
Mean Field Theory ◽  
Mean Field ◽  
Spin Models ◽  
Classical Spin ◽  
The Mean ◽  
Classical Spin Models
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