Results 111 to 120 of about 157,818 (325)

Dark Dimension With (Little) Strings Attached

open access: yesFortschritte der Physik, Volume 73, Issue 4, April 2025.
Abstract A relation between dark energy and the scale of new physics in weakly coupled string theory is motivated. This mixing between infrared and ultraviolet physics leads to a unique corner for real‐world phenomenology: barring fine‐tunings, the authors are naturally led to the “dark dimension” scenario, a single mesoscopic extra dimension of micron
Ivano Basile, Dieter Lüst
wiley   +1 more source

Split supersymmetry [PDF]

open access: yesNuclear Physics B, 2004
29 pages, comments, corrections and references ...
Giudice GF, Romanino, Andrea
openaire   +2 more sources

Supersymmetry and Singular Potentials [PDF]

open access: yesNucl.Phys. B561 (1999) 357-384, 1999
The breaking of supersymmetry due to singular potentials in supersymmetric quantum mechanics is critically analyzed. It is shown that, when properly regularized, these potentials respect supersymmetry, even when the regularization parameter is removed.
arxiv   +1 more source

Cosmic Strings, Zero Modes and SUSY breaking in Nonabelian N=1 Gauge Theories [PDF]

open access: yes, 1997
We investigate the microphysics of cosmic strings in Nonabelian gauge theories with N=1 supersymmetry. We give the vortex solutions in a specific example and demonstrate that fermionic superconductivity arises because of the couplings and interactions ...
A. D. Linde   +14 more
core   +3 more sources

Foundations of Ghost Stability

open access: yesFortschritte der Physik, Volume 73, Issue 4, April 2025.
Abstract The authors present a new method to analytically prove global stability in ghost‐ridden dynamical systems. The proposal encompasses all prior results and consequentially extends them. In particular, it is shown that stability can follow from a conserved quantity that is unbounded from below, contrary to expectation.
Verónica Errasti Díez   +2 more
wiley   +1 more source

Constraining supersymmetry [PDF]

open access: yesNew Journal of Physics, 2002
We review constraints on the minimal supersymmetric extension of the Standard Model (MSSM) coming from direct searches at accelerators such as LEP, indirect measurements such as b -> s gamma decay and the anomalous magnetic moment of the muon. The recently corrected sign of pole light-by-light scattering contributions to the latter is taken into ...
Keith A. Olive, John Ellis, Yudi Santoso
openaire   +2 more sources

Higgs in nilpotent supergravity: Vacuum energy and Festina Lente

open access: yesPhysics Letters B, 2023
In this note we study supergravity models with constrained superfields. We construct a supergravity framework in which all (super)symmetry breaking dynamics happen in vacuum with naturally (or otherwise asymptotically) vanishing energy.
Amineh Mohseni, Mahdi Torabian
doaj  

Supersymmetry restoration in superstring perturbation theory [PDF]

open access: yes, 2015
A bstractSuperstring perturbation theory based on the 1PI effective theory approach has been useful for addressing the problem of mass renormalization and vacuum shift.
A. Sen
semanticscholar   +1 more source

IS (Low Energy) SUSY STILL ALIVE?

open access: yes, 2012
Supersymmetry, a new symmetry that relates bosons and fermions in particle physics, still escapes observation. Search for supersymmetry is one of the main aims of the Large Hadron Collider.
Gladyshev, A. V., Kazakov, D. I.
core   +1 more source

A Note on the Local Observability of Uniform Hypergraphs

open access: yesPAMM, Volume 25, Issue 1, March 2025.
ABSTRACT Hypergraphs generalize graphs in such a way that edges may connect any number of nodes. If all edges are adjacent to the same number of nodes, the hypergraph is called uniform. Thus, a graph is a 2‐uniform hypergraph. Each uniform hypergraph can be identified with an autonomous dynamical state‐space system, whose vector field is composed of ...
Daniel Gerbet, Klaus Röbenack
wiley   +1 more source

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