Denis Dalmazi

• Abstract

  In this work we investigate new descriptions of spin-2 particles which have been recently suggested in the literature and futher suggestions to be made here. The problem is addressed from two point of views. First we try to classify physically sensible theories in D=4 dimensions starting with a 2nd rank tensor with at most two derivatives in the Lagrangian (2nd order models). In the secon…

  Massive spin-2 particles, AP.R
• Higher spin constraints on the super eigen valve model., AR.EXT
• Correlation functions in n=1 non-critical superstrinas in the neveal schwarz sector., AR.EXT

• Abstract

  It is known that the minimum symmetry needed to eliminate unwanted spin-1 degrees of freedom (ghosts) present in the symmetric tensor corresponds to transverse diffeomorphisms (TDiff). One can use the TDiff theory to describe massless particles of spin-2 and spin-0. The Tdiff theory depends upon a real arbitrary parameter that guarantees the unitarity of this theory for a certain range. T…

  Introduction to the transversal difeomorfisms and Bardeen variables, BP.IC

• Abstract

  A basic concept in Field Theory and Elementary Particle Physics is gauge symmetry. The most fundamental theories as the standard model (electro-weak-strong interactions), gravitational theories and even superstrings have local symmetries (gauge symmetries). Although the gauge principle leads us to an inspiring and aesthetically attractive formulation of the fundamental forces in Nature, i…

  The problem of Gauge fixation in the action and the duality in D = 2 + 1 dimensions, BP.IC

• Abstract

  Recent experiments have detected, for the first time, gravitational waves predicted by Einstein's General Relativity, henceforth Einstein-Hilbert model (EH). According to such model, the carriers of the gravitational interaction (gravitons) are spin-2 particles without any mass. However, there always exist an experimental bound for a particle mass. The gravitational waves recent experime…

  Transverse diffeomorphisms and spin-2 particles, BP.MS

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