Higgs mass predictions of public NMSSM spectrum generators

Florian Staub; Peter Athron; Ulrich Ellwanger; Ramona Gröber; Margarete Mühlleitner; Pietro Slavich; Alexander Voigt

doi:10.1016/j.cpc.2016.01.005

Higgs mass predictions of public NMSSM spectrum generators

Florian Staub, Peter Athron, Ulrich Ellwanger, Ramona Gröber, Margarete Mühlleitner, Pietro Slavich, Alexander Voigt

School of Physics and Astronomy

Research output: Contribution to journal › Article › Research › peer-review

39 Citations (Scopus)

Abstract

The publicly available spectrum generators for the NMSSM often lead to different predictions for the mass of the standard model-like Higgs boson, even though they all implement two-loop computations in the DR¯ renormalization scheme. Depending on the parameter point, the differences can exceed 5 GeV, and even reach 8 GeV for moderate superparticle masses of up to 2 TeV. It is shown here that these differences can be traced back to the calculation of the running standard model parameters entering all calculations, to the approximations used in the two-loop corrections included in the different codes, and to different choices for the renormalization conditions and scales. In particular, the importance of the calculation of the top Yukawa coupling is pointed out.

Original language	English
Pages (from-to)	113-130
Number of pages	18
Journal	Computer Physics Communications
Volume	202
DOIs	https://doi.org/10.1016/j.cpc.2016.01.005
Publication status	Published - 1 May 2016

Keywords

Higgs mass
NMSSM
Spectrum generators

Access to Document

10.1016/j.cpc.2016.01.005

Cite this

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abstract = "The publicly available spectrum generators for the NMSSM often lead to different predictions for the mass of the standard model-like Higgs boson, even though they all implement two-loop computations in the DR¯ renormalization scheme. Depending on the parameter point, the differences can exceed 5 GeV, and even reach 8 GeV for moderate superparticle masses of up to 2 TeV. It is shown here that these differences can be traced back to the calculation of the running standard model parameters entering all calculations, to the approximations used in the two-loop corrections included in the different codes, and to different choices for the renormalization conditions and scales. In particular, the importance of the calculation of the top Yukawa coupling is pointed out.",

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AU - Staub, Florian

AU - Athron, Peter

AU - Ellwanger, Ulrich

AU - Gröber, Ramona

AU - Mühlleitner, Margarete

AU - Slavich, Pietro

AU - Voigt, Alexander

PY - 2016/5/1

Y1 - 2016/5/1

N2 - The publicly available spectrum generators for the NMSSM often lead to different predictions for the mass of the standard model-like Higgs boson, even though they all implement two-loop computations in the DR¯ renormalization scheme. Depending on the parameter point, the differences can exceed 5 GeV, and even reach 8 GeV for moderate superparticle masses of up to 2 TeV. It is shown here that these differences can be traced back to the calculation of the running standard model parameters entering all calculations, to the approximations used in the two-loop corrections included in the different codes, and to different choices for the renormalization conditions and scales. In particular, the importance of the calculation of the top Yukawa coupling is pointed out.

AB - The publicly available spectrum generators for the NMSSM often lead to different predictions for the mass of the standard model-like Higgs boson, even though they all implement two-loop computations in the DR¯ renormalization scheme. Depending on the parameter point, the differences can exceed 5 GeV, and even reach 8 GeV for moderate superparticle masses of up to 2 TeV. It is shown here that these differences can be traced back to the calculation of the running standard model parameters entering all calculations, to the approximations used in the two-loop corrections included in the different codes, and to different choices for the renormalization conditions and scales. In particular, the importance of the calculation of the top Yukawa coupling is pointed out.

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Higgs mass predictions of public NMSSM spectrum generators

Abstract

Keywords

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ARC Centre of Excellence for Particle Physics at the Tera-Scale

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Higgs mass predictions of public NMSSM spectrum generators

Abstract

Keywords

Access to Document

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Projects

ARC Centre of Excellence for Particle Physics at the Tera-Scale

Cite this