Nonlinear effects in field theory with heavy fermions

Rosenstein Baruch*

*此作品的通信作者

研究成果: Article同行評審

2 引文 斯高帕斯(Scopus)

摘要

The potentials used in the description of heavy quarkonium by the Schrödinger equation do not take into account nonlinear effects. A procedure for the calculation of nonlinear contributions in perturbation theory is proposed. This procedure involves the adiabatic (Born-Oppenheimer) approximation of the field theory with heavy fermions interacting with a boson field by the theory of a boson field with a quasistatic source. The ground-state energy of the approximate theory is calculated perturbatively with the Gell-Mann Low formula. It is shown by an explicit calculation that nonlinear contributions in QCD are not negligible (as they are in QED).

原文English
頁(從 - 到)1377-1391
頁數15
期刊Physical Review D
30
發行號6
DOIs
出版狀態Published - 1 1月 1984

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