Article ID Journal Published Year Pages File Type
5494590 Nuclear Physics B 2016 9 Pages PDF
Abstract
The paper gives a historical survey of the causal position space renormalization with a special attention to the role of Raymond Stora in the development of this subject. Renormalization is reduced to subtracting the pole term in analytically regularized primitively divergent Feynman amplitudes. The identification of residues with “quantum periods” and their relation to recent developments in number theory are emphasized. We demonstrate the possibility of integration over internal vertices (that requires control over the infrared behavior) in the case of the massless φ4 theory and display the dilation and the conformal anomaly.
Related Topics
Physical Sciences and Engineering Mathematics Mathematical Physics
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