Soft gluon resummation for associated squark-electroweakino production at the LHC
Abstract We perform a threshold resummation calculation for the associated production of squarks and electroweakinos at the LHC to the next-to-leading logarithmic (NLL) accuracy. Analytical results for the process-dependent soft anomalous dimension and the hard matching coefficient are presented. Th...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2022-06-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP06(2022)130 |
| _version_ | 1797865713922211840 |
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| author | Juri Fiaschi Benjamin Fuks Michael Klasen Alexander Neuwirth |
| author_facet | Juri Fiaschi Benjamin Fuks Michael Klasen Alexander Neuwirth |
| author_sort | Juri Fiaschi |
| collection | DOAJ |
| description | Abstract We perform a threshold resummation calculation for the associated production of squarks and electroweakinos at the LHC to the next-to-leading logarithmic (NLL) accuracy. Analytical results for the process-dependent soft anomalous dimension and the hard matching coefficient are presented. The resummed results are matched to fixed-order predictions at next-to-leading order (NLO) in QCD, which are generalised to scenarios with non-universal squark masses and mixings. Numerically, the NLL contributions increase the total NLO cross section by 2% to 6% for squark masses ranging from 1 TeV to 3 TeV, respectively, and they reduce the dependence of the predictions on the factorisation and renormalisation scales from typically ±10% to below ±5%. Our NLO and NLO+NLL calculations have been implemented in the publicly available program Resummino. |
| first_indexed | 2024-04-09T23:12:35Z |
| format | Article |
| id | doaj.art-00f6742470714a128046b99a2dd29b6f |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-04-09T23:12:35Z |
| publishDate | 2022-06-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-00f6742470714a128046b99a2dd29b6f2023-03-22T10:14:39ZengSpringerOpenJournal of High Energy Physics1029-84792022-06-012022613010.1007/JHEP06(2022)130Soft gluon resummation for associated squark-electroweakino production at the LHCJuri Fiaschi0Benjamin Fuks1Michael Klasen2Alexander Neuwirth3Department of Mathematical Sciences, University of LiverpoolLaboratoire de Physique Théorique et Hautes Énergies (LPTHE), UMR 7589, Sorbonne Université et CNRSInstitut für Theoretische Physik, Westfälische Wilhelms-Universität MünsterInstitut für Theoretische Physik, Westfälische Wilhelms-Universität MünsterAbstract We perform a threshold resummation calculation for the associated production of squarks and electroweakinos at the LHC to the next-to-leading logarithmic (NLL) accuracy. Analytical results for the process-dependent soft anomalous dimension and the hard matching coefficient are presented. The resummed results are matched to fixed-order predictions at next-to-leading order (NLO) in QCD, which are generalised to scenarios with non-universal squark masses and mixings. Numerically, the NLL contributions increase the total NLO cross section by 2% to 6% for squark masses ranging from 1 TeV to 3 TeV, respectively, and they reduce the dependence of the predictions on the factorisation and renormalisation scales from typically ±10% to below ±5%. Our NLO and NLO+NLL calculations have been implemented in the publicly available program Resummino.https://doi.org/10.1007/JHEP06(2022)130ResummationSupersymmetry |
| spellingShingle | Juri Fiaschi Benjamin Fuks Michael Klasen Alexander Neuwirth Soft gluon resummation for associated squark-electroweakino production at the LHC Journal of High Energy Physics Resummation Supersymmetry |
| title | Soft gluon resummation for associated squark-electroweakino production at the LHC |
| title_full | Soft gluon resummation for associated squark-electroweakino production at the LHC |
| title_fullStr | Soft gluon resummation for associated squark-electroweakino production at the LHC |
| title_full_unstemmed | Soft gluon resummation for associated squark-electroweakino production at the LHC |
| title_short | Soft gluon resummation for associated squark-electroweakino production at the LHC |
| title_sort | soft gluon resummation for associated squark electroweakino production at the lhc |
| topic | Resummation Supersymmetry |
| url | https://doi.org/10.1007/JHEP06(2022)130 |
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