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INTERMEDIATE SCALE DEPENDENCE OF NON-UNIVERSAL GAUGINO MASSES INSUPERSYMMETRIC SO(10)

Nidal CHAMOUN; Chao-Shang HUANG; Chun LIU; Xiao-Hong WUSubjects: Physics >> General Physics: Statistical and Quantum Mechanics, Quantum Information, etc.

We calculate the dependence on intermediate scale of the gaugino mass ratios upon breaking of SO(10) into the SM via an intermediate group H. We see that the ratios change significantly when the intermediatescale is low (say, 108 GeV or 1 Tev) compared to the case when the two breakings occur at thesame scale. |

Realistic Flipped SU(5) from Orbifold SO(10)

Balazs,C; Kang,Z; Li,T; Wang,F; Yang,JMSubjects:

We propose a realistic flipped SU(5) model derived from a five-dimensional orbifold SO(10) model. The Standard Model (SM) fermion masses and mixings are explained by combining the traditional Froggatt-Nielsen mechanism with the five-dimensional wave funct |

submitted time
2016-12-28
Hits*2945*，
Downloads*1829*，
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*0*

Semi-direct Gauge-Yukawa Mediation

Kang,Z; Li,T; Liu,T; Yang,JMSubjects:

We propose semi-direct Gauge-Yukawa mediation of supersymmetry (SUSY) breaking. The messenger fields mediating SUSY breaking to the visible sector do not directly couple with the goldstino field, and instead they have gauge and Yukawa interactions with so |

submitted time
2016-12-28
Hits*2014*，
Downloads*1071*，
Comment
*0*

Split supersymmetry under GUT and current dark matter constraints

Wang,F; Wang,W; Yang,JMSubjects:

We recalculate the two-loop beta functions for three gauge couplings taking into account all low energy threshold corrections in split supersymmetry (split-SUSY) which assumes a very high scalar mass scale MSMSM_S . We find that in split-SUSY with a gaugi |

submitted time
2016-12-28
Hits*2160*，
Downloads*1236*，
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*0*

New approach for detecting a compressed bino/wino at the LHC

Han,C; Wu,L; Yang,JM; Zhang,M; Zhang,YSubjects:

In some supersymmetric models like split supersymmetry or models with non-universal gaugino mass, bino (LSP) and winos (NLSP) may have rather small mass splitting in order to provide the correct dark matter relic density through bino/wino co-annihilation. Such a scenario with the compressed bino/wino is difficult to explore at the LHC. In this work we propose to probe this scenario from pp → jχ ?02χ ?±1 followed by χ ?02 → γχ ?01 and χ ?±1 → W?χ ?01 → l±νχ ?01 (this method is also applicable to the compressed bino/higgsino scenario). Through a detailed Monte Carlo simulation for both the signal and the backgrounds, we find that for a mass splitting ?M ? 5 ? 15 GeV between bino (LSP) and wino (NLSP), the 14 TeV LHC with luminosity of 500fb?1 can probe the wino up to 150 GeV (the sensitivity can reach 5σ for ?M = 5 GeV and 2σ for ?M = 15 GeV). We also investigate the dark matter detection sensitivities for this scenario and find that the planned XENON-1T(2017) cannot fully cover the parameter space with wino below 150 GeV allowed by relic density and the LUX limits. |

submitted time
2016-12-28
Hits*2076*，
Downloads*1188*，
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*0*

An Extension for Direct Gauge Mediation of Metastable Supersymmetry Breaking

Xu,F; Yang,JMSubjects:

We study the direct mediation of metastable supersymmetry breaking by a Φ2Φ2\Phi^2 (ΦΦ\Phi is the meson field) deformation to the ISS model and extend it by splitting ΦΦ\Phi into two parts and gauging the flavor symmetry. We find that with such an extensi |

Realistic Flipped SU(5) from Orbifold SO(10)

Balazs,C; Kang,Z; Li,T; Wang,F; Yang,JMSubjects:

We propose a realistic flipped SU(5) model derived from a five-dimensional orbifold SO(10) model. The Standard Model (SM) fermion masses and mixings are explained by combining the traditional Froggatt-Nielsen mechanism with the five-dimensional wave funct |

submitted time
2016-12-28
Hits*1791*，
Downloads*1044*，
Comment
*0*

An extension for direct gauge mediation of metastable supersymmetry breaking

Xu, Fuqiang; Yang, Jin MinSubjects: Physics >> The Physics of Elementary Particles and Fields

We study the direct mediation of metastable supersymmetry breaking by a Phi(2)-deformation to the ISS model and extend it by splitting both Tr Phi and Tr Phi(2) terms in the superpotential and gauging the flavor symmetry. We find that with such an extension enough-long-lived metastable vacua can be obtained and the proper gaugino masses can be generated. Also, this allows for constructing a kind of models which can avoid the Landau pole problem. Especially, in our metastable vacua there exist a large region for the parameter m(3) which can satisfy the phenomenology requirements and allow for a low SUSY-breaking scale (h mu(2) similar to 100 TeV). Copyright (C) EPLA, 2009 |

[1 Pages/ 8 Totals]