Discovery potential for split supersymmetry with thermal dark matter
Abstract
Supersymmetric extensions of the Standard Model with scalar superpartners above 10 TeV are well motivated since the Higgs boson mass can be explained by quantum corrections while maintaining gauge coupling unification. If supersymmetry breaking is transmitted to gauginos via anomaly mediation, the gaugino masses are loop suppressed compared to scalar masses, and the lightest supersymmetric particle is the Higgsino or wino, which can be the dark matter. In this setup, we identify the regions of parameter space that reproduce the observed Higgs boson mass and the thermal abundance of dark matter. We analyze the effects of complex phases in the gaugino mass parameters on the electron electric dipole moment (EDM) and the dark matter scattering cross section. Here, we find that, for scalar masses up to 10 PeV and any size of the complex phases, the model with Higgsino dark matter is within reach of planned experiments—Advanced ACME via electron EDM and LUX-ZEPLIN via dark matter direct detection—with complementary discovery potentials, and the model with wino dark matter is within reach of future electron EDM experiments.
- Authors:
- Publication Date:
- Research Org.:
- Univ. of Minnesota, Minneapolis, MN (United States); Univ. of Michigan, Ann Arbor, MI (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1896322
- Alternate Identifier(s):
- OSTI ID: 1905517; OSTI ID: 1971095
- Grant/Contract Number:
- SC0007859; SC0011842
- Resource Type:
- Published Article
- Journal Name:
- Physical Review D
- Additional Journal Information:
- Journal Name: Physical Review D Journal Volume: 106 Journal Issue: 9; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Particle dark matter; Supersymmetric models; Superpartners; Electric moment
Citation Formats
Co, Raymond T., Pierce, Aaron, Sheff, Benjamin, and Wells, James D. Discovery potential for split supersymmetry with thermal dark matter. United States: N. p., 2022.
Web. doi:10.1103/PhysRevD.106.095001.
Co, Raymond T., Pierce, Aaron, Sheff, Benjamin, & Wells, James D. Discovery potential for split supersymmetry with thermal dark matter. United States. https://doi.org/10.1103/PhysRevD.106.095001
Co, Raymond T., Pierce, Aaron, Sheff, Benjamin, and Wells, James D. Tue .
"Discovery potential for split supersymmetry with thermal dark matter". United States. https://doi.org/10.1103/PhysRevD.106.095001.
@article{osti_1896322,
title = {Discovery potential for split supersymmetry with thermal dark matter},
author = {Co, Raymond T. and Pierce, Aaron and Sheff, Benjamin and Wells, James D.},
abstractNote = {Supersymmetric extensions of the Standard Model with scalar superpartners above 10 TeV are well motivated since the Higgs boson mass can be explained by quantum corrections while maintaining gauge coupling unification. If supersymmetry breaking is transmitted to gauginos via anomaly mediation, the gaugino masses are loop suppressed compared to scalar masses, and the lightest supersymmetric particle is the Higgsino or wino, which can be the dark matter. In this setup, we identify the regions of parameter space that reproduce the observed Higgs boson mass and the thermal abundance of dark matter. We analyze the effects of complex phases in the gaugino mass parameters on the electron electric dipole moment (EDM) and the dark matter scattering cross section. Here, we find that, for scalar masses up to 10 PeV and any size of the complex phases, the model with Higgsino dark matter is within reach of planned experiments—Advanced ACME via electron EDM and LUX-ZEPLIN via dark matter direct detection—with complementary discovery potentials, and the model with wino dark matter is within reach of future electron EDM experiments.},
doi = {10.1103/PhysRevD.106.095001},
journal = {Physical Review D},
number = 9,
volume = 106,
place = {United States},
year = {Tue Nov 01 00:00:00 EDT 2022},
month = {Tue Nov 01 00:00:00 EDT 2022}
}
https://doi.org/10.1103/PhysRevD.106.095001
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