The nuclear Yukawa model on a lattice

被引：0
作者：
F. de Soto
J. C. Anglès d’Auriac
J. Carbonell
机构：
[1] U. Pablo de Olavide,Departamento Sistemas Fısicos, Quımicos y Naturales
[2] Laboratoire de Physique Subatomique et Cosmologie,undefined
来源：
The European Physical Journal A | 2011年 / 47卷
关键词：
Yukawa Coupling; Dirac Operator; Lattice Size; Born Approximation; Scalar Coupling;
D O I：
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摘要：
We present the results of the quantum field theory approach to the nuclear Yukawa model obtained by standard lattice techniques. We have considered the simplest case of two identical fermions interacting via a scalar meson exchange. Calculations have been performed using Wilson fermions in the quenched approximation. We found the existence of a critical coupling constant above which the model cannot be numerically solved. The range of the accessible coupling constants is below the threshold value for producing two-body bound states. Two-body scattering lengths have been obtained and compared to the non-relativistic results.
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