Neutrino masses in split supersymmetry

Díaz, M. A.; Pérez, P.; Mora, Clemencia

doi:10.1103/physrevd.79.013005

Cited by 14 publications

(34 citation statements)

References 26 publications

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“…In this way, the spectrum matches exactly the low energy particle content of partial split-SUSY (PSS) [26]. To our knowledge, this minimum set of fields was first proposed in…”

Section: Introductionmentioning

confidence: 87%

“…In order to avoid intermediate breaking scales, we assume that SU(5) × U(1) X breaks to the SM also at the unification scale m G , joint with the SO (10) (7)) is the same split-SUSY configuration but with the second scalar doublet (Φ 1,2,1/2 ) living at low energies, which has been dubbed as partial split-SUSY [26]. Furthermore, X + χ + χ c has the same fermion fields of the singlet-doublet-triplet fermion DM scenario discussed in the previous section.…”

Section: A Partial Split Supersymmetry-like Modelmentioning

confidence: 99%

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Fermion dark matter from SO(10) GUTs

et al. 2016

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We construct and analyze nonsupersymmetric SO(10) standard model extensions which explain dark matter (DM) through the fermionic Higgs portal. In these SO(10)-based models the DM particle is naturally stable since a Z 2 discrete symmetry, the matter parity, is left at the end of the symmetry breaking chain to the standard model. Potentially realistic models contain the 10 and 45 fermionic representations from which a neutralino-like mass matrix with arbitrary mixings can be obtained. Two different SO(10) breaking chains will be analyzed in light of gauge coupling unification: the standard path SU(5) × U (1) X and the left-right symmetry intermediate chain.The former opens the possibility of a split supersymmetric-like spectrum with an additional (inert) scalar doublet, while the later requires additional exotic scalar representations associated to the breaking of the left-right symmetry.

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“…In this way, the spectrum matches exactly the low energy particle content of partial split-SUSY (PSS) [26]. To our knowledge, this minimum set of fields was first proposed in…”

Section: Introductionmentioning

confidence: 87%

Section: A Partial Split Supersymmetry-like Modelmentioning

confidence: 99%

Fermion dark matter from SO(10) GUTs

et al. 2016

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“…A quadratic constant B that mixes Λ i and ǫ j is also generated in general, but can be adjusted to zero by choosing an appropriate value for the arbitrary renormalization scale of dimensional regularization. [17]. Thus, the existence of a non-zero b i term in indicates that actually Higgs Bosons, at any energy scale belowm will have a small sneutrino component.…”

Section: A Neutrinos and Neutralinos In Pssmentioning

confidence: 99%

“…In Partial Split Supersymmetry all sfermions are heavy, for simplicity degenerate with a mass m, while the two Higgs doublets remain at the weak scale [6,17,20]. The lagrangian includes, BRpV is introduced in PSS with the terms,…”

Section: Partial Split Supersymmetrymentioning

confidence: 99%

Nondiagonal charged lepton Yukawa matrix: Effects on neutrino mixing in supersymmetry

2012

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Generally the diagonalization of the mass matrix of the charged leptons is a part of the neutrino U P MN S matrix. However, usually this contribution is ignored by assuming a diagonal mass matrix for charged leptons. In this letter we test this common assumption in the context of neutrino physics.Our analytical and numerical results for two supersymmetric models reveal that such a simplification is not justified. Especially for the solar and reactor mixing angles important modifications are found.

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“…In this work it is pointed out that, in order to have both Higgs doublets near the EW scale, the imposition of a second fine-tuning is required, besides the one needed to have a light SM-like Higgs boson at the EW scale. Split SUSY with a Higgs sector near the EW scale was also discussed in [50][51][52], within the context of R-parity breaking models and with focus on the generation of neutrino masses 1 . Thus, we shall consider the MSSM Higgs sector with m h 0 125 GeV and heavy Higgs states (H 0 , A 0 ) with mass as low as the LHC admits, i.e.…”

Section: Introductionmentioning

confidence: 99%

Decays of H 0/A 0 in supersymmetric scenarios with heavy sfermions

2013

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The recent discovery of a new boson at the LHC, which resembles a SM-like Higgs boson with m h = 125 GeV, is starting to provide strong guidelines into SUSY model building. For instance, the identification of such a state with the lightest CP-even Higgs boson of the MSSM (h 0 ), requires large values of tan β and/or heavy sfermions. One outcome of this result is the possibility to solve the SUSY flavor and CP problems by decoupling, which points towards some realization of Split-inspired SUSY scenarios, in which scalars are much heavier than gauginos and higgsinos. However, we argue here that the remaining Higgs bosons of the MSSM (H 0 , A 0 , H ± ) do not have to be as heavy as the sfermions, and having them with masses near the EW scale does not pose any conflict with current MSSM constraints. We discuss then some SUSY scenarios with heavy sfermions, from a bottom-up approach, which contain the full Higgs sector, as well as a possible dark matter candidate, with masses near the EW scale, and identify distinctive signals from these scenarios that could be searched at the LHC.

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Neutrino masses in split supersymmetry

Cited by 14 publications

References 26 publications

Fermion dark matter from SO(10) GUTs

Fermion dark matter from SO(10) GUTs

Nondiagonal charged lepton Yukawa matrix: Effects on neutrino mixing in supersymmetry

Decays of H 0/A 0 in supersymmetric scenarios with heavy sfermions

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