Full two-loop QCD corrections to the Higgs mass in the MSSM with heavy superpartners
Abstract 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 calcul...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2019-11-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-019-7417-9 |
| _version_ | 1818118535641038848 |
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| author | Emanuele Bagnaschi Giuseppe Degrassi Sebastian Paßehr Pietro Slavich |
| author_facet | Emanuele Bagnaschi Giuseppe Degrassi Sebastian Paßehr Pietro Slavich |
| author_sort | Emanuele Bagnaschi |
| collection | DOAJ |
| description | Abstract 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. |
| first_indexed | 2024-12-11T04:55:51Z |
| format | Article |
| id | doaj.art-83800bffaa3240198924a647f9b3aefb |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-12-11T04:55:51Z |
| publishDate | 2019-11-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-83800bffaa3240198924a647f9b3aefb2022-12-22T01:20:16ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522019-11-01791111410.1140/epjc/s10052-019-7417-9Full two-loop QCD corrections to the Higgs mass in the MSSM with heavy superpartnersEmanuele Bagnaschi0Giuseppe Degrassi1Sebastian Paßehr2Pietro Slavich3Paul Scherrer InstitutDipartimento di Matematica e Fisica, Università di Roma TreLaboratoire de Physique Théorique et Hautes Energies (LPTHE), UMR 7589, Sorbonne Université et CNRSLaboratoire de Physique Théorique et Hautes Energies (LPTHE), UMR 7589, Sorbonne Université et CNRSAbstract 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.http://link.springer.com/article/10.1140/epjc/s10052-019-7417-9 |
| spellingShingle | Emanuele Bagnaschi Giuseppe Degrassi Sebastian Paßehr Pietro Slavich Full two-loop QCD corrections to the Higgs mass in the MSSM with heavy superpartners European Physical Journal C: Particles and Fields |
| title | Full two-loop QCD corrections to the Higgs mass in the MSSM with heavy superpartners |
| title_full | Full two-loop QCD corrections to the Higgs mass in the MSSM with heavy superpartners |
| title_fullStr | Full two-loop QCD corrections to the Higgs mass in the MSSM with heavy superpartners |
| title_full_unstemmed | Full two-loop QCD corrections to the Higgs mass in the MSSM with heavy superpartners |
| title_short | Full two-loop QCD corrections to the Higgs mass in the MSSM with heavy superpartners |
| title_sort | full two loop qcd corrections to the higgs mass in the mssm with heavy superpartners |
| url | http://link.springer.com/article/10.1140/epjc/s10052-019-7417-9 |
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