Results 61 to 70 of about 1,194 (150)
, 2011 We explore an alternative mechanism for the production of gravitino dark matter whereby relic gravitinos originate from the decays of superpartners which are still in thermal equilibrium, i.e. via freeze-in. Contributions to the gravitino abundance from freeze-in can easily dominate over those from thermal scattering over a broad range of parameter ...
arxiv +1 more source
Superfield Formulation of the Phase Space Path Integral [PDF]
Phys.Lett. B446 (1999) 175-178, 1998 We give a superfield formulation of the path integral on an arbitrary curved phase space, with or without first class constraints. Canonical tranformations and BRST transformations enter in a unified manner. The superpartners of the original phase space variables precisely conspire to produce the correct path integral measure, as Pfaffian ghosts.
arxiv +1 more source
Inflation from supersymmetry breaking
European Physical Journal C: Particles and Fields, 2017 We explore the possibility that inflation is driven by supersymmetry breaking with the superpartner of the goldstino (sgoldstino) playing the role of the inflaton.
I. Antoniadis +3 more
doaj +1 more source
Induced N=2 composite supersymmetry in 2+1 dimensions [PDF]
New J.Phys. 5 (2003) 25, 2002 Starting from N=1 scalar supermultiplets in 2+1 dimensions, we build explicitly the composite superpartners which define a N=2 superalgebra induced by the initial N=1 supersymmetry. The occurrence of this extension is linked to the topologically conserved current out of which the composite superpartners are constructed.
arxiv +1 more source
Decaimientos de stop en el marco de supersimetría escalonada.
Momento, 2006 We calculate the decays of the top quark superpartner in two bodies at tree level, by using the gauge symmetry from the Standard Model of Particle Physics and by considering the split SUSY scenario for symmetry breaking.
J. A. Rodríguez, S. M. Sánchez N.
doaj
Solitonic ground state in supersymmetric theory in background
Journal of High Energy PhysicsA solitonic ground state called a chiral soliton lattice (CSL) is realized in a supersymmetric theory with background magnetic field and finite chemical potential.
Muneto Nitta, Shin Sasaki
doaj +1 more source
Resonant slepton production and right sneutrino dark matter in left-right supersymmetry
Journal of High Energy Physics, 2017 Right-handed sneutrinos are natural components of left-right symmetric supersymmetric models where the gauge sector is extended to include right-handed weak interactions.
Mariana Frank +4 more
doaj +1 more source
Minimal R+R2 supergravity models of inflation coupled to matter
Physics Letters B, 2014 The supersymmetric extension of “Starobinsky” R+αR2 models of inflation is particularly simple in the “new minimal” formalism of supergravity, where the inflaton has no scalar superpartners.
Sergio Ferrara, Massimo Porrati
doaj +1 more source
τ̃ searches at future e+e− colliders [PDF]
EPJ Web of ConferencesThe direct pair-production of the superpartner of the τ-lepton, the τ̃, is one of the most interesting channels to search for SUSY in: the τ̃ is likely to be the lightest of the scalar leptons, and is one of the most experimentally chalanging ones.
Berggren Mikael +2 more
doaj +1 more source
Saxion cosmology for thermalized gravitino dark matter
Journal of High Energy Physics, 2017 In all supersymmetric theories, gravitinos, with mass suppressed by the Planck scale, are an obvious candidate for dark matter; but if gravitinos ever reached thermal equilibrium, such dark matter is apparently either too abundant or too hot, and is ...
Raymond T. Co +3 more
doaj +1 more source