Krein Regularization of λϕ^4
arXiv:1206.3934 · doi:10.1007/s10773-011-1026-1
Abstract
We calculate the four-point function in λϕ^4 theory by using Krein regularization and compare our result, which is finite, with the usual result in λϕ^4 theory. The effective coupling constant (λ_μ) is also calculated in this method.
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