Revisiting CMSSM with non-universal gaugino masses under current constraints
Abstract To address the longstanding tension between the Constrained Minimal Supersymmetric Standard Model (CMSSM) and recent experimental data, we investigate non-universal gaugino masses within an SU(5) Grand Unified Theory (GUT) framework, focusing on the g ~ $$ \overset{\sim }{g} $$ -SUGRA scena...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2025-03-01
|
| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP03(2025)207 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Abstract To address the longstanding tension between the Constrained Minimal Supersymmetric Standard Model (CMSSM) and recent experimental data, we investigate non-universal gaugino masses within an SU(5) Grand Unified Theory (GUT) framework, focusing on the g ~ $$ \overset{\sim }{g} $$ -SUGRA scenario where |M 3| ≫ |M 1|, |M 2|. This hierarchy enables a heavier gluino, thereby evading current experimental bounds on supersymmetric particles. Our analysis reveals that precise Higgs measurements place stringent constraints on the model, requiring tan β ≳ 5 and M 0 ≳ 20 tan β GeV. Although the g ~ $$ \overset{\sim }{g} $$ -SUGRA scenario can help reconcile the persistent (g − 2) μ anomaly, the Higgs constraints significantly restrict its parameter space, making a large contribution to (g − 2) μ challenging. We also assess the discovery prospects in upcoming dark matter direct detection experiments, including PandaX-xT (200 t.y.), LZ (projected), and XENONnT (20 t.y.), which may not fully cover the viable parameter space. In contrast, future collider experiments — such as the High-Luminosity LHC at 3 ab −1 and CLIC1500 at 2.5 ab −1 — can comprehensively probe the remaining regions. These findings highlight g ~ $$ \overset{\sim }{g} $$ -SUGRA as a promising solution to the CMSSM tension and offer clear, testable predictions for upcoming collider searches. |
|---|---|
| ISSN: | 1029-8479 |