Electroweak precision data as a gateway to light higgsinos
Abstract We investigate the prospects of probing weak-scale higgsinos through electroweak precision measurements at a future e + e − collider. In the Minimal Supersymmetric Standard Model, higgsinos mix with winos and binos after electroweak symmetry breaking, forming charginos and neutralinos. Thes...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-07-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP07(2025)242 |
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| author | Natsumi Nagata Genta Osaki |
| author_facet | Natsumi Nagata Genta Osaki |
| author_sort | Natsumi Nagata |
| collection | DOAJ |
| description | Abstract We investigate the prospects of probing weak-scale higgsinos through electroweak precision measurements at a future e + e − collider. In the Minimal Supersymmetric Standard Model, higgsinos mix with winos and binos after electroweak symmetry breaking, forming charginos and neutralinos. These states contribute to electroweak precision observables, which can be measured with high accuracy at future e + e − colliders. Their contributions depend on the mixing structure, as evidenced by the generation of the oblique parameters S ̂ $$ \hat{S} $$ and T ̂ $$ \hat{T} $$ , in addition to the W and Y parameters, which arise even in the absence of mixing. We demonstrate that higgsinos with masses up to ~ 500 GeV can be probed through future electroweak precision experiments, highlighting their significance in probing weak-scale supersymmetry. |
| format | Article |
| id | doaj-art-7b7f553040ba4a4f818341fa2bbb033d |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-7b7f553040ba4a4f818341fa2bbb033d2025-08-20T04:01:47ZengSpringerOpenJournal of High Energy Physics1029-84792025-07-012025712310.1007/JHEP07(2025)242Electroweak precision data as a gateway to light higgsinosNatsumi Nagata0Genta Osaki1Department of Physics, University of TokyoDepartment of Physics, University of TokyoAbstract We investigate the prospects of probing weak-scale higgsinos through electroweak precision measurements at a future e + e − collider. In the Minimal Supersymmetric Standard Model, higgsinos mix with winos and binos after electroweak symmetry breaking, forming charginos and neutralinos. These states contribute to electroweak precision observables, which can be measured with high accuracy at future e + e − colliders. Their contributions depend on the mixing structure, as evidenced by the generation of the oblique parameters S ̂ $$ \hat{S} $$ and T ̂ $$ \hat{T} $$ , in addition to the W and Y parameters, which arise even in the absence of mixing. We demonstrate that higgsinos with masses up to ~ 500 GeV can be probed through future electroweak precision experiments, highlighting their significance in probing weak-scale supersymmetry.https://doi.org/10.1007/JHEP07(2025)242Electroweak Precision PhysicsSupersymmetry |
| spellingShingle | Natsumi Nagata Genta Osaki Electroweak precision data as a gateway to light higgsinos Journal of High Energy Physics Electroweak Precision Physics Supersymmetry |
| title | Electroweak precision data as a gateway to light higgsinos |
| title_full | Electroweak precision data as a gateway to light higgsinos |
| title_fullStr | Electroweak precision data as a gateway to light higgsinos |
| title_full_unstemmed | Electroweak precision data as a gateway to light higgsinos |
| title_short | Electroweak precision data as a gateway to light higgsinos |
| title_sort | electroweak precision data as a gateway to light higgsinos |
| topic | Electroweak Precision Physics Supersymmetry |
| url | https://doi.org/10.1007/JHEP07(2025)242 |
| work_keys_str_mv | AT natsuminagata electroweakprecisiondataasagatewaytolighthiggsinos AT gentaosaki electroweakprecisiondataasagatewaytolighthiggsinos |