Neutralino dark matter and other LHC predictions from quasi Yukawa unification
Abstract
We explore the dark matter and LHC implications of t-b-τt-b-τ quasi Yukawa unification in the framework of supersymmetric models based on the gauge symmetry G=SU(4)c×SU(2)L×SU(2)R. The deviation from exact Yukawa unification is quantified by a dimensionless parameter C (|C|≲0.2|C|≲0.2), such that the Yukawa couplings at MGUT are related by yt:yb:yτ=|1+C|:|1-C|:|1+3C|. In contrast to earlier studies which focused on universal gaugino masses, we consider non-universal gaugino masses at MGUT that are compatible with the gauge symmetry G. Our results reveal a variety of neutralino dark matter scenarios consistent with the observations. These include stau and chargino coannihilation scenarios, the A -resonance scenario, as well as Higgsino dark matter solutions which are more readily probed by direct detection searches. The gluino mass is found to be ≲4 TeV≲4 TeV, the stop mass is ≳2 TeV≳2 TeV, while the first two family squarks and sleptons are of order 4–5 TeV and 3 TeV respectively.
- Authors:
- Publication Date:
- Research Org.:
- Univ. of Delaware, Newark, DE (United States). Department of Physics and Astronomy
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1225099
- Alternate Identifier(s):
- OSTI ID: 1239824
- Grant/Contract Number:
- SC0013880
- Resource Type:
- Published Article
- Journal Name:
- Nuclear Physics. B
- Additional Journal Information:
- Journal Name: Nuclear Physics. B Journal Volume: 900 Journal Issue: C; Journal ID: ISSN 0550-3213
- Publisher:
- Elsevier
- Country of Publication:
- Netherlands
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Shafi, Qaisar, Tanyıldızı, Şükrü Hanif, and Ün, Cem Salih. Neutralino dark matter and other LHC predictions from quasi Yukawa unification. Netherlands: N. p., 2015.
Web. doi:10.1016/j.nuclphysb.2015.09.019.
Shafi, Qaisar, Tanyıldızı, Şükrü Hanif, & Ün, Cem Salih. Neutralino dark matter and other LHC predictions from quasi Yukawa unification. Netherlands. https://doi.org/10.1016/j.nuclphysb.2015.09.019
Shafi, Qaisar, Tanyıldızı, Şükrü Hanif, and Ün, Cem Salih. Sun .
"Neutralino dark matter and other LHC predictions from quasi Yukawa unification". Netherlands. https://doi.org/10.1016/j.nuclphysb.2015.09.019.
@article{osti_1225099,
title = {Neutralino dark matter and other LHC predictions from quasi Yukawa unification},
author = {Shafi, Qaisar and Tanyıldızı, Şükrü Hanif and Ün, Cem Salih},
abstractNote = {We explore the dark matter and LHC implications of t-b-τt-b-τ quasi Yukawa unification in the framework of supersymmetric models based on the gauge symmetry G=SU(4)c×SU(2)L×SU(2)R. The deviation from exact Yukawa unification is quantified by a dimensionless parameter C (|C|≲0.2|C|≲0.2), such that the Yukawa couplings at MGUT are related by yt:yb:yτ=|1+C|:|1-C|:|1+3C|. In contrast to earlier studies which focused on universal gaugino masses, we consider non-universal gaugino masses at MGUT that are compatible with the gauge symmetry G. Our results reveal a variety of neutralino dark matter scenarios consistent with the observations. These include stau and chargino coannihilation scenarios, the A -resonance scenario, as well as Higgsino dark matter solutions which are more readily probed by direct detection searches. The gluino mass is found to be ≲4 TeV≲4 TeV, the stop mass is ≳2 TeV≳2 TeV, while the first two family squarks and sleptons are of order 4–5 TeV and 3 TeV respectively.},
doi = {10.1016/j.nuclphysb.2015.09.019},
journal = {Nuclear Physics. B},
number = C,
volume = 900,
place = {Netherlands},
year = {Sun Nov 01 00:00:00 EDT 2015},
month = {Sun Nov 01 00:00:00 EDT 2015}
}
https://doi.org/10.1016/j.nuclphysb.2015.09.019
Web of Science
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