16 citations · 44 across the 6 of their papers we have counts for
7 papers
Using Neutrino Oscillations to Measure
Ali Rida Khalifeh, Raul Jimenez
The tension between late and early universe probes of today's expansion rate, the Hubble parameter , remains a challenge for the standard model of cosmology CDM. There are…
Distinguishing Dark Energy Models with Neutrino Oscillations
Ali Rida Khalifeh, Raul Jimenez
Dark Energy models are numerous and distinguishing between them is becoming difficult. However, using distinct observational probes can ease this quest and gives better assessment…
Spinors and Scalars in curved spacetime: neutrino dark energy (DE)
Ali Rida Khalifeh, Raul Jimenez
We study the interaction, in general curved spacetime, between a spinor and a scalar field describing dark energy; the so-called DE model in curved space. The dominant term is…
Dwarf Galaxies without Dark Matter: constraints on Modified Gravity
Ali Rida Khalifeh, Raul Jimenez
The discovery of dwarf galaxies without dark matter provides, counter-intuitively, strong support for the CDM standard model of cosmology. Their presence is well accommodat…
Can Dark Matter be Geometry? A Case Study with Mimetic Dark Matter
Ali Rida Khalifeh, Nicola Bellomo, José Luis Bernal +1
We investigate the possibility of dark matter being a pure geometrical effect, rather than a particle or a compact object, by exploring a specific modified gravity model: mimetic d…
Measuring the Homogeneity of the Universe Using Polarization Drift
Raul Jimenez, Roy Maartens, Ali Rida Khalifeh +3
We propose a method to probe the homogeneity of a general universe, without assuming symmetry. We show that isotropy can be tested at remote locations on the past lightcone by comp…
Quintessential Inflation in Mimetic Dark Matter
Ali R. Khalifeh
A quintessential Inflation (QI) scenario from Mimetic Dark Matter (MDM) is presented in this paper. This scenario, which is based on the MDM model presented by Chamseddine and Mukh…