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We consider a generic supersymmetric matter theory coupled to linearized supergravity, and analyze scenarios for spontaneous symmetry breaking in terms of vacuum expectation values of components of the current supermultiplet. When the…

High Energy Physics - Theory · Physics 2015-06-25 Stephen L. Adler

We study some conditions for the hierarchy $m_{3/2} << M_P$ to occur naturally in a generic effective supergravity theory. Absence of fine-tuning and perturbative calculability require that the effective potential has a sliding gravitino…

High Energy Physics - Theory · Physics 2014-11-18 S. Ferrara , C. Kounnas , F. Zwirner

Models with dynamical supersymmetry breaking have the potential to solve many of the naturalness problems of hidden sector supergravity models. We review the argument that in a generic supergravity theory in which supersymmetry is {\it…

High Energy Physics - Phenomenology · Physics 2009-10-22 M. Dine , D. A. MacIntire

We present a qualitatively new mechanism for dynamical spontaneous breakdown of supersymmetry. Specifically, we construct a modified formulation of standard minimal N=1 supergravity. The modification is based on an idea worked out in detail…

High Energy Physics - Theory · Physics 2014-11-03 Eduardo Guendelman , Emil Nissimov , Svetlana Pacheva , Mahary Vasihoun

We present simple models of dynamical supersymmetry breaking with gauged U(1)_R symmetry. The minimal supersymmetric standard model and supersymmetric SU(5) GUT are considered as the visible sector. The anomaly cancellation conditions for…

High Energy Physics - Phenomenology · Physics 2009-10-31 Noriaki Kitazawa , Nobuhito Maru , Nobuchika Okada

A compactification of 11-dimensional supergravity with two (or more) walls is considered. The whole tower of massive Kaluza-Klein modes along the fifth dimension is taken into account. With the sources on the walls, an explicit composition…

High Energy Physics - Theory · Physics 2009-10-31 Krzysztof A. Meissner , Hans Peter Nilles , Marek Olechowski

Gravitino-condensate-induced inflation via the super-Higgs effect is a UV-motivated scenario for both inflating the early universe and breaking local supersymmetry dynamically, entirely independent of any coupling to external matter. As an…

General Relativity and Quantum Cosmology · Physics 2015-06-22 Jean Alexandre , Nick Houston , Nick E. Mavromatos

We present the mechanism of the dynamical supersymmetry breaking at the metastable vacuum recently uncovered in the N=1 U(N) supersymmetric gauge theory that contains adjoint superfields and that is specified by Kahler and non-canonical…

High Energy Physics - Phenomenology · Physics 2013-08-09 H. Itoyama , Nobuhito Maru

We construct realistic supergravity models where supersymmetry breaking arises from the $D$-terms of an anomalous $U(1)$ gauge symmetry broken at the Planck scale. The model has the attractive feature that the gaugino masses, the $A$ and…

High Energy Physics - Phenomenology · Physics 2009-10-28 R. N. Mohapatra , Antonio Riotto

We consider the minimal three-form ${\cal N}=1$ supergravity coupled to nilpotent three-form chiral superfields. The supersymmetry breaking is sourced by the three-forms of the chiral multiplets, while the value of the gravitino mass is…

High Energy Physics - Theory · Physics 2016-07-20 Fotis Farakos , Alex Kehagias , Davide Racco , Antonio Riotto

In this paper we study dynamical supersymmetry breaking in absence of gravity with the matter content of the minimal supersymmetric standard model. The hidden sector of the theory is a strongly coupled gauge theory, realized in terms of…

High Energy Physics - Theory · Physics 2010-11-11 F. Fucito , A. Lionetto , J. F. Morales , R. Richter

We consider supersymmetry breaking models with a purely constant superpotential in supergravity. The supersymmetry breaking is induced for the vanishing cosmological constant. As a hidden mediation sector of supersymmetry breaking, it…

High Energy Physics - Phenomenology · Physics 2011-05-09 K. -I. Izawa , T. Kugo , T. T. Yanagida

We consider five dimensional theories compactified on the orbifold S^1/Z_2 and prove that spontaneous local supersymmetry breaking by Wilson lines and by the Scherk-Schwarz mechanism are equivalent. Wilson breaking is triggered by the…

High Energy Physics - Theory · Physics 2009-11-07 G. v. Gersdorff , M. Quiros

A model describing the $N=2$ supergravity interaction with vector and linear multiplets is constructed. It admits the introduction of the spontaneous breaking of supersymmetry with arbitrary scales, one of which may be equal to zero, which…

High Energy Physics - Theory · Physics 2007-05-23 Yu. M. Zinoviev

We provide a gauge-mediation model of dynamical supersymmetry breaking where the gravitino mass takes a value in a wide range from 0.1 eV to 10 GeV. The lower mass region of order 100 keV or less deserves experimental and cosmological…

High Energy Physics - Phenomenology · Physics 2009-09-29 K. -I. Izawa , Yasunori Nomura , T. Yanagida

We propose a simple scenario of the dynamical supersymmetry breaking in four dimensional supergravity theories. The supersymmetry breaking sector is assumed to be completely separated as a sequestered sector from the visible sector, except…

High Energy Physics - Phenomenology · Physics 2009-10-31 Noriaki Kitazawa , Nobuhito Maru , Nobuchika Okada

We present a simple and realistic model of supersymmetry breaking. In addition to the minimal supersymmetric standard model, we only introduce a hidden sector gauge group SU(5) and three fields X, F and \bar{F}. Supersymmetry is broken at a…

High Energy Physics - Phenomenology · Physics 2008-11-26 Yasunori Nomura , Michele Papucci

Generic partial supersymmetry breaking of $N=2$ supergravity with zero vacuum energy and with surviving unbroken arbitrary gauge groups is exhibited. Specific examples are given.

High Energy Physics - Theory · Physics 2011-03-31 P. Fre' , L. Girardello , I. Pesando , M. Trigiante

We construct realistic supergravity models where supersymmetry breaking arises from the D-terms of an anomalous U(1) gauge symmetry broken at the Planck scale. Effective action for these theories at sub-Planck energies (including higher…

High Energy Physics - Phenomenology · Physics 2016-09-06 R. N. Mohapatra , A. Riotto

We discuss spontaneous supersymmetry (SUSY) breaking in a model with an anomalous $U(1)_A$ symmetry. In this model, the size of the each term in the superpotential is controlled by the $U(1)_A$ charge assignment and SUSY is spontaneously…

High Energy Physics - Phenomenology · Physics 2018-03-21 Nobuhiro Maekawa , Yuji Omura , Yoshihiro Shigekami , Manabu Yoshida