A natural MSSM from a novel SO(10), Yukawa unification, light sparticles, and SUSY implications at LHC
The SO(10) model with a heavy Higgs spectrum consisting of 560 + 560 and a light Higgs spectrum consisting of 2×10 + 320 plet representations of SO(10) is unique among SO(10) models. It has the remarkable property that VEVs of 560 and 560 can simultaneously reduce the rank of the gauge group and fur...
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2025
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| Online Access: | https://hdl.handle.net/11073/26239 |
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| _version_ | 1864513444135305216 |
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| author | Li, Jinzheng |
| author2 | Nath, Pran Syed, Raza |
| author2_role | author author |
| author_facet | Li, Jinzheng Nath, Pran Syed, Raza |
| author_role | author |
| dc.creator.none.fl_str_mv | Li, Jinzheng Nath, Pran Syed, Raza |
| dc.date.none.fl_str_mv | 2025-07-29T10:02:51Z 2025-07-29T10:02:51Z 2025-07-22 |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | Li, J., Nath, P., & Syed, R. M. (2025). A natural MSSM from a novel SO(10), Yukawa unification, light sparticles, and SUSY implications at LHC. Journal of High Energy Physics, 2025(7). https://doi.org/10.1007/jhep07(2025)222 1029-8479 https://hdl.handle.net/11073/26239 10.1007/JHEP07(2025)222 |
| dc.language.none.fl_str_mv | en |
| dc.publisher.none.fl_str_mv | Springer |
| dc.relation.none.fl_str_mv | https://doi.org/10.1007/JHEP07(2025)222 |
| dc.subject.none.fl_str_mv | Grand unification Supersymmetry |
| dc.title.none.fl_str_mv | A natural MSSM from a novel SO(10), Yukawa unification, light sparticles, and SUSY implications at LHC |
| dc.type.none.fl_str_mv | Published version Peer-Reviewed info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
| description | The SO(10) model with a heavy Higgs spectrum consisting of 560 + 560 and a light Higgs spectrum consisting of 2×10 + 320 plet representations of SO(10) is unique among SO(10) models. It has the remarkable property that VEVs of 560 and 560 can simultaneously reduce the rank of the gauge group and further reduce the remaining symmetry down to the Standard Model gauge group. Additionally, on mixing with the light felds all the Higgs felds become heavy except for one pair of light Higgs doublets just as in MSSM. This model has not been fully explored thus far because of the technical difculty of computing the couplings of the heavy and the light Higgs sectors, specifcally the interaction (560 × 560) · 320 involving the coupling of tensor-spinors with a third rank mixed tensor 320. An explicit analysis of such couplings is given in this paper. Spontaneous symmetry breaking of the SO(10) symmetry is carried out by reducing the gauge group to SU(3) c×SU(2)L×U(1)Y with just one pair of light Higgs. Thus a natural deduction of MSSM arises from the SO(10) model with no fne tuning needed. Further, it is shown that the light Higgs doublet of the model is a linear combination of the Higgs doublet felds of the 2×10 and the 320 Higgs felds. It is shown that in this class of SO(10) models b − t − τ unifcation can be achieved with tan β as low as 5–10. An analysis of the sparticle spectrum within g˜SUGRA renormalization group evolution is given which leads to a bi-modal sparticle spectrum consisting of a compressed low mass spectrum for sleptons and weakinos and a high mass spectrum of gluino, squarks, and heavy Higgs. While the LSP is the light neutralino, the NLSP is found to be the light stau lying close to the LSP, while the remaining leptons, and the weakinos are also in close proximity to the LSP with masses in the few hundred GeV range. The cross section for slepton production and weakino production are estimated and appear promising for SUSY at the LHC. However, a more dedicated analysis is needed to predict the size of the supersymmetric signatures at the LHC. |
| format | article |
| id | aus_f6fde28993cf46cc69397cf45c0b007f |
| identifier_str_mv | Li, J., Nath, P., & Syed, R. M. (2025). A natural MSSM from a novel SO(10), Yukawa unification, light sparticles, and SUSY implications at LHC. Journal of High Energy Physics, 2025(7). https://doi.org/10.1007/jhep07(2025)222 1029-8479 10.1007/JHEP07(2025)222 |
| language_invalid_str_mv | en |
| network_acronym_str | aus |
| network_name_str | aus |
| oai_identifier_str | oai:repository.aus.edu:11073/26239 |
| publishDate | 2025 |
| publisher.none.fl_str_mv | Springer |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| spelling | A natural MSSM from a novel SO(10), Yukawa unification, light sparticles, and SUSY implications at LHCLi, JinzhengNath, PranSyed, RazaGrand unificationSupersymmetryThe SO(10) model with a heavy Higgs spectrum consisting of 560 + 560 and a light Higgs spectrum consisting of 2×10 + 320 plet representations of SO(10) is unique among SO(10) models. It has the remarkable property that VEVs of 560 and 560 can simultaneously reduce the rank of the gauge group and further reduce the remaining symmetry down to the Standard Model gauge group. Additionally, on mixing with the light felds all the Higgs felds become heavy except for one pair of light Higgs doublets just as in MSSM. This model has not been fully explored thus far because of the technical difculty of computing the couplings of the heavy and the light Higgs sectors, specifcally the interaction (560 × 560) · 320 involving the coupling of tensor-spinors with a third rank mixed tensor 320. An explicit analysis of such couplings is given in this paper. Spontaneous symmetry breaking of the SO(10) symmetry is carried out by reducing the gauge group to SU(3) c×SU(2)L×U(1)Y with just one pair of light Higgs. Thus a natural deduction of MSSM arises from the SO(10) model with no fne tuning needed. Further, it is shown that the light Higgs doublet of the model is a linear combination of the Higgs doublet felds of the 2×10 and the 320 Higgs felds. It is shown that in this class of SO(10) models b − t − τ unifcation can be achieved with tan β as low as 5–10. An analysis of the sparticle spectrum within g˜SUGRA renormalization group evolution is given which leads to a bi-modal sparticle spectrum consisting of a compressed low mass spectrum for sleptons and weakinos and a high mass spectrum of gluino, squarks, and heavy Higgs. While the LSP is the light neutralino, the NLSP is found to be the light stau lying close to the LSP, while the remaining leptons, and the weakinos are also in close proximity to the LSP with masses in the few hundred GeV range. The cross section for slepton production and weakino production are estimated and appear promising for SUSY at the LHC. However, a more dedicated analysis is needed to predict the size of the supersymmetric signatures at the LHC.National Science FoundationSponsoring Consortium for Open Access Publishing in Particle PhysicsSpringer2025-07-29T10:02:51Z2025-07-29T10:02:51Z2025-07-22Published versionPeer-Reviewedinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfLi, J., Nath, P., & Syed, R. M. (2025). A natural MSSM from a novel SO(10), Yukawa unification, light sparticles, and SUSY implications at LHC. Journal of High Energy Physics, 2025(7). https://doi.org/10.1007/jhep07(2025)2221029-8479https://hdl.handle.net/11073/2623910.1007/JHEP07(2025)222enhttps://doi.org/10.1007/JHEP07(2025)222oai:repository.aus.edu:11073/262392025-07-29T17:58:29Z |
| spellingShingle | A natural MSSM from a novel SO(10), Yukawa unification, light sparticles, and SUSY implications at LHC Li, Jinzheng Grand unification Supersymmetry |
| status_str | publishedVersion |
| title | A natural MSSM from a novel SO(10), Yukawa unification, light sparticles, and SUSY implications at LHC |
| title_full | A natural MSSM from a novel SO(10), Yukawa unification, light sparticles, and SUSY implications at LHC |
| title_fullStr | A natural MSSM from a novel SO(10), Yukawa unification, light sparticles, and SUSY implications at LHC |
| title_full_unstemmed | A natural MSSM from a novel SO(10), Yukawa unification, light sparticles, and SUSY implications at LHC |
| title_short | A natural MSSM from a novel SO(10), Yukawa unification, light sparticles, and SUSY implications at LHC |
| title_sort | A natural MSSM from a novel SO(10), Yukawa unification, light sparticles, and SUSY implications at LHC |
| topic | Grand unification Supersymmetry |
| url | https://hdl.handle.net/11073/26239 |