MSSM A-funnel and the galactic center excess: prospects for the LHC and direct detection experiments
Abstract
The pseudoscalar resonance or “A-funnel” in the Minimal Supersymmetric Standard Model (MSSM) is a widely studied framework for explaining dark matter that can yield interesting indirect detection and collider signals. The well-known Galactic Center excess (GCE) at GeV energies in the gamma ray spectrum, consistent with annihilation of a ≲ 40 GeV dark matter particle, has more recently been shown to be compatible with significantly heavier masses following reanalysis of the background.For this study, we explore the LHC and direct detection implications of interpreting the GCE in this extended mass window within the MSSM A-funnel framework. We find that compatibility with relic density, signal strength, collider constraints, and Higgs data can be simultaneously achieved with appropriate parameter choices. The compatible regions give very sharp predictions of 200-600 GeV CP-odd/even Higgs bosons at low tan β at the LHC and spin-independent cross sections ≈ 10-11 pb at direct detection experiments. Finally, regardless of consistency with the GCE, this study serves as a useful template of the strong correlations between indirect, direct, and LHC signatures of the MSSM A-funnel region.
- Authors:
-
- Nordita (Nordic Institute for Theoretical Physics), KTH Royal Institute of Technology and Stockholm University, Stockholm (Sweden); Univ. of Michigan, Ann Arbor, MI (United States); Stockholm Univ. (Sweden)
- Univ. of Michigan, Ann Arbor, MI (United States)
- Univ. of Michigan, Ann Arbor, MI (United States) ; Wayne State Univ., Detroit, MI (United States)
- Publication Date:
- Research Org.:
- Univ. of Michigan, Ann Arbor, MI (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- OSTI Identifier:
- 1327011
- Grant/Contract Number:
- SC0007859
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of High Energy Physics (Online)
- Additional Journal Information:
- Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2016; Journal Issue: 4; Journal ID: ISSN 1029-8479
- Publisher:
- Springer Berlin
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Supersymmetry; Phenomenology
Citation Formats
Freese, Katherine, López, Alejandro, Shah, Nausheen R., and Shakya, Bibhushan. MSSM A-funnel and the galactic center excess: prospects for the LHC and direct detection experiments. United States: N. p., 2016.
Web. doi:10.1007/JHEP04(2016)059.
Freese, Katherine, López, Alejandro, Shah, Nausheen R., & Shakya, Bibhushan. MSSM A-funnel and the galactic center excess: prospects for the LHC and direct detection experiments. United States. https://doi.org/10.1007/JHEP04(2016)059
Freese, Katherine, López, Alejandro, Shah, Nausheen R., and Shakya, Bibhushan. Mon .
"MSSM A-funnel and the galactic center excess: prospects for the LHC and direct detection experiments". United States. https://doi.org/10.1007/JHEP04(2016)059. https://www.osti.gov/servlets/purl/1327011.
@article{osti_1327011,
title = {MSSM A-funnel and the galactic center excess: prospects for the LHC and direct detection experiments},
author = {Freese, Katherine and López, Alejandro and Shah, Nausheen R. and Shakya, Bibhushan},
abstractNote = {The pseudoscalar resonance or “A-funnel” in the Minimal Supersymmetric Standard Model (MSSM) is a widely studied framework for explaining dark matter that can yield interesting indirect detection and collider signals. The well-known Galactic Center excess (GCE) at GeV energies in the gamma ray spectrum, consistent with annihilation of a ≲ 40 GeV dark matter particle, has more recently been shown to be compatible with significantly heavier masses following reanalysis of the background.For this study, we explore the LHC and direct detection implications of interpreting the GCE in this extended mass window within the MSSM A-funnel framework. We find that compatibility with relic density, signal strength, collider constraints, and Higgs data can be simultaneously achieved with appropriate parameter choices. The compatible regions give very sharp predictions of 200-600 GeV CP-odd/even Higgs bosons at low tan β at the LHC and spin-independent cross sections ≈ 10-11 pb at direct detection experiments. Finally, regardless of consistency with the GCE, this study serves as a useful template of the strong correlations between indirect, direct, and LHC signatures of the MSSM A-funnel region.},
doi = {10.1007/JHEP04(2016)059},
journal = {Journal of High Energy Physics (Online)},
number = 4,
volume = 2016,
place = {United States},
year = {Mon Apr 11 00:00:00 EDT 2016},
month = {Mon Apr 11 00:00:00 EDT 2016}
}
Web of Science
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