Exploring Elko typical signature

Abstract

We study the prospects of observing the presence of a relatively light Elko particle as a possible dark matter candidate, by pointing out a typical signature for the process encompassing the Elko non-locality, exploring some consequences of the unusual Elko propagator behavior when analyzed outside the Elko axis of propagation. We also consider the production of a light Elko associated to missing energy and isolated leptons at the LHC, with center of mass energy of 7 and 14 TeV and total luminosity from 1f b −1 to 10f b −1 . Basically, the Elko non locality engenders a peculiar signal in the missing energy turning it sensible to the angle of detection.

The Theory of Local Mass Dimension One Fermions of Spin One Half

“…In view of the results on locality and Lorentz covariance reported here it is important to revisit the analysis and claims of [101] and also those calculations that use full apparatus of the theory of quantum fields, and not merely Elko. In the same thread, given the interest in mass dimension one fermions a number of S-matrix calculations were done and published [102][103][104][105][106][107]. These need to be revisited also.…”

An identification of the Dirac operator with the parity operator

“…Elko spinor fields have been investigated in the last decade [8][9][10][11][12][13][14][15][16][17][18] and has been further applied to gravity, cosmology, and field theory. [8][9][10][11][12][13][14][15][16][17][18] We recall that its starting point, in Ref.…”

Localization of five-dimensional Elko spinors with non-minimal coupling on thick branes

“…However, Elko spinor field has some different properties compared with Dirac spinor: (1) it satisfies the Klein-Gordon (KG) equation rather than the Dirac equation, (2) for the five-dimensional Elko spinor, its mass dimension is one, instead of 3/2 that is suit for Dirac spinor. Hence the interactions between Elko spinor and gauge fields in SM will be suppressed strongly (at least one order of Plank scale), which means that Elko spinor only interacts with itself, graviton and Higgs fields [67][68][69][70][71][72][73][74][75]. Elko spinor has been considered as a first-principle candidate of dark matter [67][68][69][70][71] and has also been investigated extensively in cosmology [76][77][78][79][80][81][82][83][84][85] and mathematical physics [86][87][88][89][90][91][92].…”