کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1846628 | 1033353 | 2010 | 9 صفحه PDF | دانلود رایگان |
Non-perturbative approach which we develop is based on representation of the state vector as a set of Fock components. After truncation to a finite number of components, we come to a coupled-channel problem which is solved non-perturbatively, in light-front dynamics, without using any decomposition in degrees of the coupling constant. Previously [J.-F. Mathiot, V.A. Karmanov and A.V. Smirnov, Proc. of Sci., LC2008:024, 2008; arXiv:0812.1100[hep-ph].], in Yukawa model, we took into account the Fock sectors corresponding to single fermion, a fermion coupled to one boson, and a fermion coupled to two bosons. Now we extend the Fock space and incorporate also the fermion-antifermion pair, i.e., the Fock sector with two fermions and one antifermion. An appropriate non-perturbative renormalization procedure is developed.
Journal: Nuclear Physics B - Proceedings Supplements - Volume 199, Issue 1, February 2010, Pages 35-43