Renormalization and Effective Field Theory
نویسنده
چکیده
منابع مشابه
Effective Scalar Field Theory and Reduction of Couplings
A general discussion of the renormalization of the quantum theory of a scalar field as an effective field theory is presented. The renormalization group equations in a mass independent renormalization scheme allow to identify the possibility to go beyond the renormalizable φ4 theory without losing its predictive power. It is shown that there is a minimal extension with just one additional free ...
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The general structure of the renormalization group equations for the low energy effective field theory formulation of pure gravity is presented. The solution of these equations takes a particular simple form if the mass scale of the effective theory is much smaller than the Planck mass (a possibility compatible with the renormalization of the effective theory). A theory with just one free renor...
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The construction of heavy quark effective field theory (HqEFT) is extended to arbitrary order in both expansion parameters αs and 1/mq. Matching conditions are discussed for the general case, and it is verified that this approach correctly reproduces the infrared behaviour of full QCD. Choosing a renormalization scheme in the full theory fixes the renormalization scheme in the effective theory ...
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The OS and PDS renormalization schemes for the effective field theory with nucleons and pions are investigated. We explain in detail how the renormalization is implemented using local counterterms. Fits to the NN scattering data are performed in the S0 and S1 channels for different values of μR. An error analysis indicates that the range of the theory with perturbative pions is consistent with ...
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A general discussion of the renormalization of the quantum theory of a scalar field as an effective field theory is presented. The renormalization group equations in a mass-independent renormalization scheme allow us to identify the possibility to go beyond the renormalizable φ4 theory without losing its predictive power. It is shown that there is a minimal extension with just one additional fr...
متن کاملRenormalization Group Determination of the Five-Loop Effective Potential for Massless Scalar Field Theory
The five-loop effective potential and the associated summation of subleading logarithms for O(4) globallysymmetric massless λφ field theory in the Coleman-Weinberg renormalization scheme d V dφ4 ̨
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تاریخ انتشار 2010