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Bogoliubov compensation approach in QCD and in the electroweak theory | | B.A. Arbuzov
; M.K. Volkov
; | | Date: |
9 Mar 2010 | | Abstract: | We describe application of Bogoliubov compensation principle to calculation
of non-perturbative contribution in the electroweak theory and QCD. We obtain
unique solutions of compensation equations, which impose strong restrictions on
parameters of theories and on functional dependence of corresponding
form-factors. We calculate value of running gauge electroweak coupling
$alpha_w(M_W)=0.0374$, that differs from the experimental value less than by
10%. We derive effective Nambu-Jona-Lasinio interaction from fundamental QCD
and express its parameters in terms of initial QCD parameters: $alpha_s$ at
low-momenta and current mass of light quarks. This leads to satisfactory
description of low-mass hadron physics. | | Source: | arXiv, 1003.1857 | | Services: | Forum | Review | PDF | Favorites | |
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