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On the renormalization of the S parameter

Name: On the renormalization of the S parameter
Creator: Sinya Aoki
Keywords: High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), 0103 physical sciences, FOS: Physical sciences, 01 natural sciences

descriptionPublicationkeyboard_double_arrow_right Article , Preprint , Other literature type 01 Oct 1992Embargo end date: 01 Jan 1992Publisher:Elsevier BVJournal:Physics Letters B, volume 291, pages 437-440 (issn: 0370-2693,

Authors: Sinya Aoki;

doi: 10.1016/0370-2693(92)91400-4 , 10.48550/arxiv.hep-ph/9204218

arXiv: http://arxiv.org/abs/hep-ph/9204218

On the renormalization of the S parameter

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Abstract

We calculate the S parameter of the standard model at one loop of fermions, using three different regularizations (dimensional, Pauli-Villars and lattice) and find an extra contribution to the S parameter besides the standard one for each case. This shows that the extra contribution recently reported for the lattice regularization is {\it not} necessarily tied to the non-decoupling effect of fermion doublers. We argue that the extra contribution should be subtracted in the renormalizable perturbative expansion.

8 pages

Related Organizations

University of Tsukuba
Japan

Keywords

High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), FOS: Physical sciences

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