Valley Method Versus Instanton-Induced Effective Lagrangean Up to (E/E sphaleron)8/3
Abstract
We compare the two most popular approaches to the problem of instanton-antiinstanton interaction at high energies - the valley method and the effective-Lagrangian approach - and use them to calculate the next-to-next-to-leading term in the expansion of ``holy grail'' function determining the cross section with baryon number violation in the Standard Model.
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