Renormalization scheme dependence of the two-loop QCD corrections to the neutral Higgs-boson masses in the MSSM

被引：42

作者：

Borowka, S. ^{[1
]}

Hahn, T. ^{[2
]}

Heinemeyer, S. ^{[3
]}

Heinrich, G. ^{[2
]}

Hollik, W. ^{[2
]}

机构：

[1] Univ Zurich, Inst Phys, CH-8057 Zurich, Switzerland

[2] Max Planck Inst Phys & Astrophys, Werner Heisenberg Inst, D-80805 Munich, Germany

[3] CSIC UC, Inst Fis Cantabria, Santander, Spain

来源：

EUROPEAN PHYSICAL JOURNAL C | 2015年 / 75卷 / 09期

关键词：

SUPERSYMMETRIC STANDARD MODEL; HIGH-PRECISION PREDICTIONS; ON-SHELL RENORMALIZATION; RADIATIVE-CORRECTIONS; COMPLEX MSSM; PROGRAM; SECTOR; FEYNARTS; REGULARIZATION; IMPLEMENTATION;

D O I：

10.1140/epjc/s10052-015-3648-6

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Reaching a theoretical accuracy in the prediction of the lightest MSSM Higgs-boson mass, M-h, at the level of the current experimental precision requires the inclusion of momentum-dependent contributions at the two-loop level. Recently two groups presented the two-loop QCD momentum-dependent corrections to M-h (Borowka et al., Eur Phys J C 74(8): 2994, 2014; Degrassi et al., Eur Phys J C 75(2): 61, 2015), using a hybrid on-shell-(DR) over bar scheme, with apparently different results. We show that the differences can be traced back to a different renormalization of the top-quark mass, and that the claim in Ref. Degrassi et al. (Eur Phys J C 75(2): 61, 2015) of an inconsistency in Ref. Borowka et al. (Eur Phys J C 74(8): 2994, 2014) is incorrect. We furthermore compare consistently the results for M-h obtained with the top-quark mass renormalized on-shell and (DR) over bar. The latter calculation has been added to the FeynHiggs package and can be used to estimate missing higher-order corrections beyond the two-loop level.

引用

页数：16

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