https://doi.org/10.1140/epjp/s13360-024-05959-6
Regular Article
Hadron production through Higgs boson decay at next-to-leading order in the zero-mass variable-flavor-number scheme
Department of Physics, Yazd University, P.O. Box 89195-741, Yazd, Iran
Received:
13
September
2024
Accepted:
31
December
2024
Published online:
16
January
2025
After the discovery of Higgs boson at the CERN-LHC in 2012, an important task is to accurately study its properties including the Higgs couplings to the fundamental fermions and the gauge bosons as well as the Higgs self-coupling. One needs to test whether these couplings are completely consistent with those predicted by the SM so that any deviation from the SM prediction may be a signal of new physics. In the present work, we consider a specific channel to study for the SM Higgs at the current and future colliders. In this channel, we study the energy spectrum of hadrons inclusively produced in Higgs decay. This study is performed within the framework of massless scheme where the bottom quark mass is ignored from the beginning except in the Yukawa coupling. To be specific, the energy distribution of 
-mesons will be discussed at next-to-leading order QCD accuracy and some uncertainties due to the variation of renormalization and factorization scales shall be studied. This channel was studied previously so we, here, revise the phenomenological results considering the new parton fragmentation functions. We also consider the effect of gluon splitting on the energy spectra which is appreciable in the low energy of meson.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
