Full two-loop QCD corrections to the Higgs mass in the MSSM with heavy superpartners

被引：16

作者：

Bagnaschi, Emanuele ^{[1
]}

Degrassi, Giuseppe ^{[2
,3
]}

Passehr, Sebastian ^{[4
,5
]}

Slavich, Pietro ^{[4
,5
]}

机构：

[1] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

[2] Univ Roma Tre, Dipartimento Matemat & Fis, Via Vasca Navale 84, I-00146 Rome, Italy

[3] Ist Nazl Fis Nucl, Sez Roma Tre, Via Vasca Navale 84, I-00146 Rome, Italy

[4] Sorbonne Univ, UMR 7589, LPTHE, 4 Pl Jussieu, F-75252 Paris 05, France

[5] CNRS, 4 Pl Jussieu, F-75252 Paris 05, France

来源：

EUROPEAN PHYSICAL JOURNAL C | 2019年 / 79卷 / 11期

关键词：

RENORMALIZATION-GROUP EQUATIONS; SUPERSYMMETRIC STANDARD MODEL; HIGH-PRECISION PREDICTIONS; QUANTUM-FIELD THEORY; BOSON MASSES; RADIATIVE-CORRECTIONS; BETA-FUNCTION; SECTOR; FEYNARTS;

D O I：

10.1140/epjc/s10052-019-7417-9

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：

We improve the determination of the Higgs-boson mass in the MSSM with heavy superpartners, by computing the two-loop threshold corrections to the quartic Higgs coupling that involve both the strong and the electroweak gauge couplings. Combined with earlier results, this completes the calculation of the two-loop QCD corrections to the quartic coupling at the SUSY scale. We also compare different computations of the relation between the quartic coupling and the pole mass of the Higgs boson at the EW scale. We find that the numerical impact of the new corrections on the prediction for the Higgs mass is modest, but comparable to the accuracy of the Higgs-mass measurement at the LHC.

引用

页数：14

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