Muon $$g-2$$ g-2 in Split-Family SUSY in light of LHC run II

Abstract The Split-Family supersymmetry is a model in which the sfermion masses of the first two generations are in $${\mathcal {O}}(100{-}{1000})\,\hbox {GeV}$$ O(100-1000)GeV while that of the third one is in $${\mathcal {O}}(10)$$ O(10)  TeV. With such a hierarchical spectrum, the deviation of th...

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Main Authors: Masahiro Ibe, Motoo Suzuki, Tsutomu T. Yanagida, Norimi Yokozaki
Format: Article
Language:English
Published: SpringerOpen 2019-08-01
Series:European Physical Journal C: Particles and Fields
Online Access:http://link.springer.com/article/10.1140/epjc/s10052-019-7186-5
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author Masahiro Ibe
Motoo Suzuki
Tsutomu T. Yanagida
Norimi Yokozaki
author_facet Masahiro Ibe
Motoo Suzuki
Tsutomu T. Yanagida
Norimi Yokozaki
author_sort Masahiro Ibe
collection DOAJ
description Abstract The Split-Family supersymmetry is a model in which the sfermion masses of the first two generations are in $${\mathcal {O}}(100{-}{1000})\,\hbox {GeV}$$ O(100-1000)GeV while that of the third one is in $${\mathcal {O}}(10)$$ O(10)  TeV. With such a hierarchical spectrum, the deviation of the muon $$g-2$$ g-2 and the observed Higgs boson mass are explained simultaneously. In this paper, we revisit the Split-Family SUSY model in light of the updated LHC constraints. We also study the flavor changing neutral current problems in the model. As we will show, the problems do not lead to stringent constraints when the Cabibbo-Kobayashi-Maskawa matrix is the only source of the flavor mixing. We also study how large flavor mixing in the supersymmetry breaking parameters is allowed.
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spelling doaj.art-eed1c1f553754361a815e84524cd69c12022-12-21T23:52:28ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522019-08-0179811410.1140/epjc/s10052-019-7186-5Muon $$g-2$$ g-2 in Split-Family SUSY in light of LHC run IIMasahiro Ibe0Motoo Suzuki1Tsutomu T. Yanagida2Norimi Yokozaki3ICRR, The University of TokyoICRR, The University of TokyoKavli IPMU (WPI), UTIAS, The University of TokyoDepartment of Physics, Tohoku UniversityAbstract The Split-Family supersymmetry is a model in which the sfermion masses of the first two generations are in $${\mathcal {O}}(100{-}{1000})\,\hbox {GeV}$$ O(100-1000)GeV while that of the third one is in $${\mathcal {O}}(10)$$ O(10)  TeV. With such a hierarchical spectrum, the deviation of the muon $$g-2$$ g-2 and the observed Higgs boson mass are explained simultaneously. In this paper, we revisit the Split-Family SUSY model in light of the updated LHC constraints. We also study the flavor changing neutral current problems in the model. As we will show, the problems do not lead to stringent constraints when the Cabibbo-Kobayashi-Maskawa matrix is the only source of the flavor mixing. We also study how large flavor mixing in the supersymmetry breaking parameters is allowed.http://link.springer.com/article/10.1140/epjc/s10052-019-7186-5
spellingShingle Masahiro Ibe
Motoo Suzuki
Tsutomu T. Yanagida
Norimi Yokozaki
Muon $$g-2$$ g-2 in Split-Family SUSY in light of LHC run II
European Physical Journal C: Particles and Fields
title Muon $$g-2$$ g-2 in Split-Family SUSY in light of LHC run II
title_full Muon $$g-2$$ g-2 in Split-Family SUSY in light of LHC run II
title_fullStr Muon $$g-2$$ g-2 in Split-Family SUSY in light of LHC run II
title_full_unstemmed Muon $$g-2$$ g-2 in Split-Family SUSY in light of LHC run II
title_short Muon $$g-2$$ g-2 in Split-Family SUSY in light of LHC run II
title_sort muon g 2 g 2 in split family susy in light of lhc run ii
url http://link.springer.com/article/10.1140/epjc/s10052-019-7186-5
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AT motoosuzuki muong2g2insplitfamilysusyinlightoflhcrunii
AT tsutomutyanagida muong2g2insplitfamilysusyinlightoflhcrunii
AT norimiyokozaki muong2g2insplitfamilysusyinlightoflhcrunii