<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>Z</mml:mi><mml:mo>′</mml:mo></mml:msup></mml:math>-Mediated Supersymmetry Breaking

Langacker, Paul; Paz, Gil; Wang, Lian Tao; Yavin, Itay

doi:10.1103/physrevlett.100.041802

Cited by 63 publications

(128 citation statements)

References 83 publications

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“…A Wino NLSP can occur naturally in certain GUT models with F-terms which are nonsinglet under the GUT group [14]. Note that a Wino NLSP may be possible also in the case of U(1) mediated supersymmetry breaking [15].…”

Section: Jhep11(2009)003mentioning

confidence: 99%

Gravitino dark matter and general neutralino NLSP

Covi¹,

Hasenkamp²,

Pokorski³

et al. 2009

J. High Energy Phys.

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Abstract:We study the scenario of gravitino DM with a general neutralino NLSP in a model independent way. We consider all neutralino decay channels and compare them with the most recent BBN constraints. We check how those bounds are relaxed for a Higgsino or a Wino NLSP in comparison to the Bino neutralino case and look for possible loopholes in the general MSSM parameter space. We determine constraints on the gravitino and neutralino NLSP mass and comment on the possibility of detecting these scenarios at colliders.

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Section: Jhep11(2009)003mentioning

confidence: 99%

Gravitino dark matter and general neutralino NLSP

Covi¹,

Hasenkamp²,

Pokorski³

et al. 2009

J. High Energy Phys.

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“…This, therefore, suggests a simple method of coupling our kernel to a messenger sector. In addition, the presence of multiple U (1) groups makes Z ′ mediation [37] an intriguing alternative possibility, and perhaps the most natural way of mediating supersymmetry-breaking to the fields of the minimal supersymmetric standard model (MSSM). A scenario of this sort, in which some of the MSSM fields would be charged under one or more hidden-sector U (1) groups, could lead to a rich Z ′ phenomenology potentially visible at the LHC [33].…”

Section: Discussionmentioning

confidence: 99%

Building a nest at tree level: Classical metastability and nontrivial vacuum structure in supersymmetric field theories

Thomas

2008

Phys. Rev. D

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It is becoming increasingly clear that metastable vacua may play a prominent role in supersymmetrybreaking. To date, however, this idea has been realized only in models where non-perturbative dynamics complicates the analysis of metastability. In this paper, we present a simple construction in which metastable vacua occur classically, i.e., at tree-level, and in which supersymmetry-breaking is sourced by both D-terms and F -terms. All relevant dynamics is perturbative, and hence calculations of vacuum energies and lifetimes can be performed explicitly. Moreover, we find that our construction can even give rise to multiple non-supersymmetric vacua which are degenerate. The non-trivial vacuum structure of such models therefore suggests that they can provide a rich arena for future studies of vacuum metastability in supersymmetric field theories. Our results may also have important consequences for Z ′ phenomenology and the string landscape.

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“…Here we give a brief review of the Z-prime mediation of SUSY breaking [19,20] by discussing the pattern of the soft SUSY breaking parameters, the masses of the Z ′ -ino and of the MSSM squarks and gauginos, which are the most robust predictions of this scenario. At the SUSY breaking scale, Λ S , SUSY breaking in the hidden sector is assumed to generate a SUSY breaking mass for the fermionic component of the U(1) B−L vector superfield.…”

Section: Z-prime Mediation Of Susy Breakingmentioning

confidence: 99%

“…It has recently been noticed that if there exist such an extra gaugino, it can mediate a SUSY breaking so as to induce the gaugino masses for each SM gauge group at the two loop level, while the scalar soft masses are generated at the one loop level [19,20] 4 . The Z-prime mediated SUSY breaking is basically to use an extra U(1) ′ vector multiplet as a field which communicates a SUSY breaking source with the visible sector.…”

Section: Introductionmentioning

confidence: 99%

Radiative B–L symmetry breaking and the Z′ mediated SUSY breaking

Kikuchi¹,

Kubo²

2008

Physics Letters B

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We explore a mechanism of radiative B − L symmetry breaking in analogous to the radiative electroweak symmetry breaking. The breaking scale of B − L symmetry is related to the neutrino masses through the see-saw mechanism. Once we incorporate the U(1) B−L gauge symmetry in SUSY models, the U(1) B−L gaugino,Z B−L appears, and it can mediate the SUSY breaking (Z-prime mediated SUSY breaking) at around the scale of 10 6 GeV. Then we find a links between the neutrino mass (more precisly the see-saw or B − L scale of order 10 6 GeV) and the Z-prime mediated SUSY breaking scale. It is also very interesting that the gluino at the weak scale becomes relatively light, and almost compressed mass spectra for the gaugino sector can be realized in this scenario, which is very interesting in scope of the LHC.

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Z′-Mediated Supersymmetry Breaking

Cited by 63 publications

References 83 publications

Gravitino dark matter and general neutralino NLSP

Gravitino dark matter and general neutralino NLSP

Building a nest at tree level: Classical metastability and nontrivial vacuum structure in supersymmetric field theories

Radiative B–L symmetry breaking and the Z′ mediated SUSY breaking

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