Article
Physics, Particles & Fields
Constantinos Pallis
Summary: New realizations of gravity-mediated SUSY breaking are introduced, consistent with an R symmetry. By utilizing specific superpotential terms and potentials in the hidden sector superfield and Kahler manifolds, solutions to the mu problem and R axion mass problem are achieved. Through mild violation of the R symmetry, non-vanishing soft SUSY-breaking parameters are obtained, leading to phenomenologically acceptable results.
EUROPEAN PHYSICAL JOURNAL C
(2021)
Article
Physics, Particles & Fields
Fotis Farakos, Alex Kehagias, Nikolaos Liatsos
Summary: We investigate the breaking of supersymmetry through a complex linear superfield coupled to 4D N=1 supergravity. The theory exhibits two classically decoupled vacua, one supersymmetric and another one with broken and intrinsically non-linear supersymmetry. Depending on the parameter values, the scalar potential can result in no-scale Minkowski or stable de Sitter or anti-de Sitter vacua. We also present a dual description of the system using a nilpotent chiral superfield and a standard chiral coupled to supergravity.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Astronomy & Astrophysics
Ernesto Arganda, Antonio Delgado, Roberto A. Morales, Mariano Quiros
Summary: In this study, a novel supersymmetric signal with gluinos decaying into jets and bino-like neutralino is analyzed at the LHC. The signal involves four light jets, four b-jets, and a significant amount of missing transverse energy. Backgrounds such as top quark pairs, V + jets, and top quark pairs with additional electroweak boson productions are identified as challenging, but prospects for discovery at high luminosity phases of the LHC are promising.
Article
Physics, Particles & Fields
Ernesto Arganda, Antonio Delgado, Roberto A. Morales, Mariano Quiros
Summary: This study proposes a search strategy for gluinos with r leptons in the final state at the LHC. The results demonstrate the sensitivity of the search strategy and provide projections for higher luminosity experiments.
EUROPEAN PHYSICAL JOURNAL C
(2022)
Article
Physics, Particles & Fields
Yermek Aldabergenov, Ignatios Antoniadis, Auttakit Chatrabhuti, Hiroshi Isono
Summary: The study investigates reheating after the end of inflation in models with gauged U(1) R-symmetry where the inflaton is the superpartner of goldstino. Two classes of models are considered, with the inflaton superpotential being linear due to the R-symmetry in both cases. The inflationary observables of the models fit within 2 sigma CMB values, and coupling the inflaton sector to the Standard Model results in a reheating temperature around 10^8 GeV, with the potential for accommodating super-heavy LSP dark matter in both models depending on parameter choice.
EUROPEAN PHYSICAL JOURNAL C
(2021)
Article
Physics, Particles & Fields
Yusuke Yamada
Summary: In this study, we investigate scenarios where both supersymmetry and Lorentz symmetry are broken spontaneously in scalar fluid or vector condensation models. We find that the scalar fluid model faces several issues, but extending it to a vector condensation model avoids these problems while achieving soft SUSY breaking and accelerated expansion. The soft SUSY breaking in our simple setup is constrained to be less than O(100)TeV due to limitations on modification of gravity.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
P. Pelliconi, A. Sagnotti
Summary: The passage delves into integrable dynamical systems derived from scalar-gravity Lagrangians containing dilaton tadpole potentials of broken supersymmetry, particularly within static compactifications. It highlights the issue of unbounded string coupling and space-time curvature in certain regions of internal space, while noting that string coupling remains bounded in specific solutions of these integrable models. Suggestions for corrected potential shapes under absence or non-linear realization of supersymmetry are provided, with acknowledgment of persistent large scalar curvatures in all examples and the potential mitigation through higher-derivative corrections of String Theory.
Article
Astronomy & Astrophysics
Antonio Delgado, Mariano Quiros
Summary: The study focuses on a cosmologically stable neutral component from a nearly pure SU(2) doublet as a candidate for dark matter, with a mass of around 1.1 TeV. Investigating the role of Higgsino as dark matter in the context of the minimal supersymmetric extension of the Standard Model, the search for light supersymmetric spectra in models with universal and nonuniversal Higgs and gaugino Majorana masses is discussed. The possibilities for detecting the lightest supersymmetric particles, gluino, top squark, and stau, in future collider experiments are also explored.
Article
Physics, Particles & Fields
Arthur Hebecker, Sascha Leonhardt
Summary: The paper discusses the problem of metastable SUSY breaking in the landscape and the challenge of SUSY breaking in the AdS context. It proposes breaking SUSY using multi-cosine-shaped axion potentials and considers the potential for violating the non-SUSY AdS conjecture in the KKLT context and the type-IIA setting of DGKT.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Multidisciplinary
D. Farotti, J. B. Gutowski
Summary: This article classifies warped dS(5) backgrounds in D = 11 supergravity with enhanced supersymmetry. The backgrounds preserving different supersymmetries are studied and the corresponding conclusions are given.
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
(2022)
Article
Physics, Particles & Fields
Luis A. Anchordoqui, Ignatios Antoniadis, Niccolo Cribiori, Dieter Luest, Marco Scalisi
Summary: We argue that there is a relation between the supersymmetry breaking scale and the measured value of the dark energy density Lambda. This relation is derived by combining two quantum gravity consistency swampland constraints, which connect Lambda and the gravitino mass M-3/2 to the mass scale of a light Kaluza-Klein tower and the UV cut-off of the effective theory. The constraints on Lambda and M-3/2 lead to the Dark Dimension scenario and provide implications for the scale of supersymmetry breaking.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Astronomy & Astrophysics
Tatsuo Kobayashi, Takashi Shimomura, Morimitsu Tanimoto
Summary: The study focuses on the soft supersymmetry breaking terms in the modular flavor models and their implications on lepton flavor violation phenomena. The soft SUSY breaking terms are found to be constrained by the modular forms, with corresponding large SUSY mass scales, which will be explored by future experiments. The predicted branching ratios of tau decays to e + gamma and mu + gamma are significantly below the current experimental bounds.
Article
Astronomy & Astrophysics
Howard Baer, Vernon Barger, Shadman Salam, Dibyashree Sengupta
Summary: Recent research on string theory landscape calculations suggests a Higgs boson mass around 125 GeV and sparticle masses beyond the reach of the high-luminosity LHC. Studies on supersymmetry breaking in BB string models indicate a power law distribution for certain stabilization methods, while large-volume scenarios yield a logarithmic soft term distribution. Evaluations of statistical distributions for the Higgs boson and sparticle masses show peaks around 125 GeV with sparticles beyond the reach of the LHC, albeit with softer distributions than those based on a power law.
Article
Physics, Particles & Fields
Sergei M. Kuzenko, Jake C. Stirling
Summary: In this study, a new family of U(1) duality-invariant models is proposed for the coupling between nonlinear N = 1 supersymmetric electrodynamics and supergravity. This family includes the Cribiori-FarakosTournoy-van Proeyen supergravity-matter theory for spontaneously broken local supersymmetry and introduces a novel Fayet-Iliopoulos term without gauged R-symmetry.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Review
Multidisciplinary Sciences
Pedro D. Alvarez, Lucas Delage, Mauricio Valenzuela, Jorge Zanelli
Summary: Supersymmetry plays a crucial role in the extensions of the Standard Model, with potential to simplify systems while emerging as a contingent symmetry depending on features of the vacuum state.