Topic
On shell renormalization scheme
About: On shell renormalization scheme is a research topic. Over the lifetime, 9 publications have been published within this topic receiving 290 citations.
Papers
TL;DR: In this article, the authors investigated the renormalization of supersymmetric quantum electrodynamics, regularized by higher derivatives, in the on-shell scheme, and showed that the exact Novikov, Shifman, Vainshtein, and Zakharov (NSVZ) equation relating the $$\beta $$ -function to the anomalous dimension of the matter superfields is valid in all orders of the perturbation theory.
Abstract: In this paper we investigate the renormalization of $$\mathcal{N}=1$$
supersymmetric quantum electrodynamics, regularized by higher derivatives, in the on-shell scheme. It is demonstrated that in this scheme the exact Novikov, Shifman, Vainshtein, and Zakharov (NSVZ) equation relating the $$\beta $$
-function to the anomalous dimension of the matter superfields is valid in all orders of the perturbation theory. This implies that the on-shell scheme enters the recently constructed continuous set of NSVZ subtraction schemes. To verify this statement, we compare the anomalous dimension of the matter superfields in the two-loop approximation and the $$\beta $$
-function in the three-loop approximation, which are explicitly calculated in this scheme. The finite renormalizations relating the on-shell scheme to some other NSVZ subtraction schemes formulated previously are obtained.
18 citations
TL;DR: In this article, the results of an accurate investigation of the electromagnetic and weak radiative corrections to Bhabha scattering at PETRA/PEP energies and around the Z 0 in the electroweak standard model were presented.
10 citations
Journal Article•
1 citations
Posted Content•
TL;DR: In this article, an on-shell renormalization scheme was proposed, in which the mass parameter of minimal MS scheme is replaced with the pole mass obtained from the loop order expansion of the polemass in the MS scheme.
Abstract: We introduce an on shell renormalization scheme in which the mass parameter of minimal MS scheme is replaced with the pole mass obtained from the loop order expansion of the pole mass in the MS scheme. As a consequence, the quartic coupling constant remains same as that of the MS scheme and the vacuum expectation value gets contributions from the one-particle-irreducible diagrams. We also show the renormalization group invariance of the pole mass in this scheme.
TL;DR: In this paper, the authors analyzed the one loop contributions to the Higgs boson mass from the fermions and sfermions in the on shell renormalization scheme.
Abstract: In this paper, we extend the Minimal Supersymmetric Standard Model (MSSM) with additional vector-like particles (VLPs) and compared the differences of mass spectrum and Feynman rules between the MSSM and MSSMV. We analytically calculate the one loop contributions to the Higgs boson mass from the fermions and sfermions in the on shell renormalization scheme. After discussing and numerically analyzing cases without bilinear terms and a case with a (partial) decoupling limit, we find: (i) the corrections depend on the mass splittings between quarks and squarks and between vector-like fermions and their sfermions; (ii) there exists the (partial) decoupling limit, where the VLPs decouple from the electroweak (EW) energy scale, even when one of the VLPs is light around the EW scale. The reason is that the contributions to Higgs mass can be suppressed by the (or partial) decoupling effects, which can make the EW phenomenology different from the MSSM. Moreover, we present some numerical analysis to understand these unique features.
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2019 | 3 |
| 2017 | 1 |
| 1995 | 1 |
| 1994 | 1 |
| 1993 | 1 |
| 1986 | 1 |