Improved SUSY QCD corrections to Higgs boson decays into quarks and squarks
Y. Yamada, H. Eberl, K. Hidaka, S. Kraml, W. Majerotto
TL;DR
This paper improves the calculation of SUSY QCD corrections to Higgs boson decays into quarks and squarks by using running parameters, addressing large corrections at high tan beta.
Contribution
It introduces a refined method for calculating SUSY QCD corrections using running parameters, enhancing accuracy for large tan beta scenarios.
Findings
Corrections can be very large for high tan beta.
Improved calculation reduces theoretical uncertainties.
Method enhances precision of Higgs decay predictions.
Abstract
The O(alpha_s) SUSY QCD corrections to the decays of the MSSM Higgs bosons into bottom quarks and squarks can be very large for large tan beta in the on--shell renormalization scheme. We improve the calculation by a careful choice of the tree-level Higgs boson couplings in terms of running parameters of quarks and squarks.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions · Computational Physics and Python Applications