scholarly journals Pairing properties in relativistic mean field models obtained from effective field theory

2001 ◽  
Vol 63 (4) ◽  
Author(s):  
M. Del Estal ◽  
M. Centelles ◽  
X. Viñas ◽  
S. K. Patra
Keyword(s):  
Field Theory ◽  
Effective Field Theory ◽  
Mean Field ◽  
Effective Field ◽  
Relativistic Mean Field ◽  
Mean Field Models

scholarly journals Effective field theory and nuclear mean-field models

2000 ◽  
Vol 663-664 ◽  
pp. 513c-516c ◽  
Author(s):  
R.J. Furnstahl ◽  
Brian D. Serot
Keyword(s):  
Field Theory ◽  
Effective Field Theory ◽  
Mean Field ◽  
Effective Field ◽  
Mean Field Models

scholarly journals NATURALNESS IN AN EFFECTIVE FIELD THEORY FOR NEUTRON STAR MATTER

2004 ◽  
Vol 13 (07) ◽  
pp. 1413-1418 ◽  
Author(s):  
MOISÉS RAZEIRA ◽  
CÉSAR A. Z. VASCONCELLOS
Keyword(s):  
Field Theory ◽  
Neutron Stars ◽  
Nuclear Matter ◽  
Effective Field Theory ◽  
Mean Field ◽  
Effective Field ◽  
Hadronic Matter ◽  
Model Parameters ◽  
Static Properties ◽  
Naive Dimensional Analysis

High density hadronic matter is studied in a generalized relativistic multi-baryon Lagrangian density mean field approach which contains nonlinear couplings of the σ, ω, ϱ fields. We compare the predictions of our model with estimates obtained within a phenomenological naive dimensional analysis based on the naturalness of the coefficients of the theory. Upon adjusting the model parameters to describe bulk static properties of ordinary nuclear matter, we show that our approach represents a natural modelling of nuclear matter under the extreme conditions of density as the ones found in the interior of neutron stars. Moreover, we show that naturalness play a major role in effective field theory and, in combination with experiment, could represent a relevant criterium to select a model among others in the description of global static properties of neutron stars.

THE NEW MEAN FIELD RENORMALIZATION GROUP FROM EFFECTIVE FIELD THEORY

1995 ◽  
Vol 09 (24) ◽  
pp. 1617-1621 ◽  
Author(s):  
F. O. COELHO ◽  
J. A. PLASCAK
Keyword(s):  
Field Theory ◽  
Renormalization Group ◽  
Effective Field Theory ◽  
Order Parameter ◽  
Mean Field ◽  
Previous Treatment ◽  
Field Approximation ◽  
Effective Field ◽  
Mean Field Approximation ◽  
Field Renormalization

The new mean field renormalization group is used to study the Ising model through the calculation of the order parameter by means of the effective field theory based on Callen–Suzuki identity. By considering one- and two-spin clusters, better results are obtained when compared to the previous treatment using the usual mean field approximation.

scholarly journals Uncertainty quantification of effective nuclear interactions

2016 ◽  
Vol 25 (05) ◽  
pp. 1641009 ◽  
Author(s):  
R. Navarro Pérez ◽  
J. E. Amaro ◽  
E. Ruiz Arriola
Keyword(s):  
Field Theory ◽  
Uncertainty Quantification ◽  
Effective Field Theory ◽  
Mean Field ◽  
Effective Field ◽  
Effective Interactions ◽  
Systematic Uncertainties ◽  
Nuclear Interactions ◽  
Recent Developments

We give a brief review on the development of phenomenological NN interactions and the corresponding quantification of statistical uncertainties. We look into the uncertainty of effective interactions broadly used in mean field calculations through the Skyrme parameters and effective field theory counterterms by estimating both statistical and systematic uncertainties stemming from the NN interaction. We also comment on the role played by different fitting strategies on the light of recent developments.

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