| Article | |
| Report number | arXiv:2207.02807 ; CERN-TH-2022-100 ; KA-TP-16-22 ; PSI-PR-22-16 ; CERN--TH--2022--100 ; KA--TP--16--22 ; PSI--PR--22--16 |
| Title | Pseudoscalar MSSM Higgs Production at NLO SUSY-QCD |
| Related title | Pseudoscalar MSSM Higgs Production at NLO SUSY--QCD |
| Author(s) | Bagnaschi, Emanuele (CERN) ; Fritz, Lukas (PSI, Villigen ; Zurich U.) ; Liebler, Stefan (KIT, Karlsruhe, TP) ; Mühlleitner, Margarete (KIT, Karlsruhe, TP) ; Nguyen, Thanh Tien Dat (KIT, Karlsruhe, TP) ; Spira, Michael (PSI, Villigen) |
| Publication | 2023-03-17 |
| Imprint | 2022-07-06 |
| Number of pages | 38 |
| Note | 38 pages, 15 figures |
| In: | JHEP 2303 (2023) 124 |
| DOI | 10.1007/JHEP03(2023)124 |
| Subject category | Particle Physics - Experiment ; Particle Physics - Phenomenology |
| Abstract | One of the most important mechanisms at the Large Hadron Collider (LHC) for the production of the pseudoscalar Higgs boson of the Minimal Supersymmetric Standard Model (MSSM) is the loop-induced gluon fusion process $gg\to A$. The higher-order QCD corrections have been obtained a long time ago and turned out to be large. However, the genuine supersymmetric (SUSY--)QCD corrections have been obtained only in the limit of large SUSY particle masses so far. We describe our calculation of the next-to-leading-order (NLO) SUSY--QCD results with full mass dependence and present numerical results for a few representative benchmark points. We also address the treatment of the effective top and bottom Yukawa couplings, in the case of heavy SUSY particles, in terms of effective low-energy theories where the heavy degrees of freedom have been decoupled. Furthermore, we include a discussion of the relation between the SUSY--QCD corrections that we have computed and the Adler--Bardeen theorem for the axial anomaly. In addition, we apply our results to the gluonic and photonic pseudoscalar Higgs decays $A\to gg,\gamma\gamma$ at NLO. |
| Copyright/License | preprint: (License: arXiv nonexclusive-distrib 1.0) publication: © 2023-2024 The Author(s) (License: CC-BY-4.0), sponsored by SCOAP³ |
Corresponding record in: Inspire
Record created 2022-07-08, last modified 2024-02-19
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