29 citations · 55 across the 3 of their papers we have counts for
6 papers
Neutrino flavor oscillations inside matter in conformal coupling models
Fayçal Hammad, Parvaneh Sadeghi, Nicolas Fleury
We recently studied neutrinos flavor oscillations in vacuum within conformal coupling models. In this paper, we extend that analysis by investigating neutrino flavor oscillations i…
Revisiting the Schrödinger-Dirac equation
Nicolas Fleury, Fayçal Hammad, Parvaneh Sadeghi
In flat spacetime, the Dirac equation is the "square root" of the Klein-Gordon equation in the sense that by applying the square of the Dirac operator to the Dirac spinor, one reco…
Plane-wave and wavepacket neutrino flavor oscillations in vacuum in conformal coupling models
Fayçal Hammad, Parvaneh Sadeghi, Nicolas Fleury
We investigate neutrino flavor oscillations in vacuum within a general conformal coupling model. We first examine the flavor oscillations within the plane-wave description of neutr…
Revisiting wormhole energy conditions in Riemann-Cartan spacetimes and under Weyl transformations
Fayçal Hammad, Étienne Massé, Patrick Labelle
We show that the violation of the null energy condition by matter, required by traversable wormholes, can be removed in spacetimes with torsion. In addition, we show that this viol…
Conformal mapping of the Misner-Sharp mass from gravitational collapse
Fayçal Hammad
The conformal transformation of the Misner-Sharp mass is reexamined. It has recently been found that this mass does not transform like usual masses do under conformal mappings of s…
Revisiting the Brans solutions of scalar-tensor gravity
V. Faraoni, F. Hammad, S. D. Belknap-Keet
Motivated by statements in the literature which contradict two general theorems, the static and spherically symmetric Brans solutions of scalar-tensor gravity are analyzed explicit…