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Magnetic moment generation from non-minimal couplings in a scenario with Lorentz-symmetry violation
AbstractThis paper deals with situations that illustrate how the violation of Lorentz symmetry in the gauge sector may contribute to magnetic moment generation of massive neutral particles with spin-Expand
Supergraphs extended to broken supersymmetries
Abstract Supergraph techniques are generalized to the case of broken supersymmetry. The modified superpropagators for the O'Raifeartaigh model are obtained: they are used for the superspaceExpand
Topologically massive spin-1 particles and spin-dependent potentials
We investigate the role played by particular field representations of an intermediate massive spin-1 boson in the context of spin-dependent interparticle potentials between fermionic sources in theExpand
Non-minimal coupling to a Lorentz-violating background and topological implications
Abstract.The non-minimal coupling of fermions to a background responsible for the breaking of Lorentz symmetry is introduced in Dirac’s equation; the non-relativistic regime is contemplated, and theExpand
Aspects of CPT-even Lorentz-symmetry violating physics in a supersymmetric scenario
Background fermion condensates in a landscape dominated by global supersymmetry are reassessed in connection with a scenario where Lorentz symmetry is violated in the bosonic sector (actually, theExpand
The photino sector and a confining potential in a supersymmetric Lorentz-symmetry-violating model
We study the spectrum of the minimal supersymmetric extension of the Carroll–Field–Jackiw model for Electrodynamics with a topological Chern–Simons-like Lorentz-symmetry violating term. We identify aExpand
Remarks on nonlinear electrodynamics
We consider both generalized Born–Infeld and exponential electrodynamics. The field energy of a point-like charge is finite only for Born–Infeld-like electrodynamics. However, both Born–Infeld-typeExpand
The chance is necessary? The case of The Drunkard's Walk: How Randomness Rules Our Lives
L. Mlodinow, The Drunkard’s Walk: How Randomness Rules Our Lives (Pantheon Books, New York, 2008), 272 p. The debate involving chance and necessity is one of the oldest questions in the history ofExpand