N. Mebarki | Searcharxiv

arXiv2024

New MiniBooNE excess interpretation using Pseudo-Hermitian neutrino oscillation

The excess observed in the MiniBooNE experiment data has been confirmed by several data releases and analyses. Several attempts to explain this excess have been proposed in the literature, using approaches ranging from experimental errors to new neutrino theories. None of these attempts seem to fully account for the observed excess. In this paper, we present a new approach based on a non-standard two-flavor oscillation theory. In recent years, there has been increasing interest in pseudo-Hermitian Hamiltonian theories and their impact on various quantum phenomena. Neutrino oscillation is modified using the approach of PT-pseudo-Hermitian oscillation, which introduces a zero-distance effect and an asymmetry in the appearance probability of specific flavors. According to this study, such effects can account for the excess and provide a better fit to the data than the current best fit within the standard oscillation framework. We present an analysis of the fit between MiniBooNE data and this new oscillation model.

hep-ph↗

arXiv2021

Neutrino-Antineutrino Asymmetry From The Space-time Noncommutativity

A new mechanism having as an origin the space-time noncommutativity has been shown to generate anisotropy and axial-like interaction giving rise to a leptonic asymmetry for fermionic particles propagating in a curved noncommutative $FRW$ universe. As a by-product, for ultra-relativistic particles like neutrinos, an analytical expression of this asymmetry is derived explicitly. Constraints and bounds from the cosmological parameters are also discussed.

hep-th↗

arXiv2021

Strong First Order Phase Transition and $B$ Violation in the Compact 341 Model

Baryogenesis in the context of the compact $SU\left( 3\right)_C\otimes SU\left( 4\right)_{L}\otimes U\left( 1\right)_X$ model is investigated. Using the finite temperature effective potential approach together with unitarity, stability and no ghost masses constraints, the existence of a strong first order electroweak phase transition (EWPT) was shown and checked numerically during all steps of the spontaneous breakdown of the gauge symmetry of the model. Higgs masses regions fulfilling the EWPT criteria are also discussed. Moreover, and as a byproduct of our study, the B-violation via sphaleron was also emphasized.

hep-ph↗

arXiv2020

Quantum Entanglement and Thermodynamics of Boson-Antiboson Pair Creation Modes in the Noncommutative Bianchi I Universe

Within the quantum field theory approach and using the technique of Bogoliubov transformations, the von Neumann boson-antiboson pair creation quantum entanglement entropy is studied in the context of the noncommutative Bianchi I universe. It is shown that the latter have a behavior depending strongly on the choice of the noncommutativity θ parameter, k_{\perp}-frequency modes and the structure of the curved spacetime. Moreover, the relationship between the Bose-Einstein condensation and quantum entanglement is also discussed.

gr-qc↗

arXiv2020

Bounds on the scale of noncommutativity from mono photon production in ATLAS Runs -1 and -2 experiments at LHC energies

Leading order study of direct photon production from proton-proton collisions, in the framework of Minimal (Seiberg-Witten) Non-Commutative Standard Model (NCSM), taking into account the Earth-rotation effects. We found that relative non-commutative contributions increase significantly at very high photon transverse momentum. Therefore, using Run-1 (\sqrt{s}= 8 TeV) and Run-2 (\sqrt{s}= 13 TeV) ATLAS experimental data of inclusive isolated prompt photon cross-section, TeV-Scale bounds of the non-commutativity (NC) parameter are obtained. For space-space non-commutativity, we obtain: Λb=1.145 \pm 0.015 TeV , and for space-time non-commutativity, we obtain : Λe=1.125 \pm 0.035 TeV.

hep-ph↗

arXiv2020

The New Compact 341 Model: Higgs Decay Modes

New developments in the anomaly free compact 341 model are discussed and the higgs bosons decay modes are studied taking into account the contributions of new fermions, gauge bosons and scalar bosons predicted by the model. It is shown from signal strengths and the branching ratios of the various decay modes analysis and the LHC constraints that there is a room for this extended BSM model and it is viable.

physics.gen-ph↗

arXiv2020

Quantum Entanglement of Fermions- Antifermions Pair Creation modes in Non-commutative Bianchi I Space-time

The non-commutative Bianchi I curved space-time vierbeins and spin connections are derived. Moreover, the corresponding non-commutative Dirac equation as well as its solutions are presented. As an application within the quantum field theory approach using Bogoliubov transformations, the von Neumann fermion-antifermion pair creation quantum entanglement entropy is studied. It is shown that its behaviour is strongly dependent on the value of the non-commutativity $θ$ parameter, $k_\perp$-modes frequencies and the structure of the curved space-time. Various discussions of the obtained features are presented.

gr-qc↗

arXiv2020

Spin Quantum Entanglement in a General Curved Static Space-Time

A general formalism of the spin quantum entanglement in a curved space-time represented. As examples Kerr and non commutative Reissner- Nordström models are considered. The behaviors of the concurrence and entanglement entropy as a function of the various parameters are also discussed.

gr-qc↗

arXiv2018

Redshift effects implications on revised models of Stephan's quintet

Recent observations of Stephan's Quintet gave new indications on its formation scenario. Older formation and a role of NCG 7317 should be considered in revised numerical models of the compact group. Velocities of group members to recreate are estimated from redshift measurements. Several effects contribute to observed redshifts and a new effect is predicted to be the result of the gravitational interaction between photons and constant magnetic fields creating gravitational waves. The energy carried by these waves is manifested as redshifts of photons. Cosmological simulations data are used to prove the significant contribution of our effect. The analysis of synthetic observations created from those simulations has shown that redshifts differences of Stephanes Quintet members could be misinterpreted as caused only from Doppler Effect. The revised models of the group should consider a new method to recreate the formation scenario based on redshift patterns and not mis-estimated velocities.

gr-qc↗

arXiv2016

The Quantum Trihedron

The convex hull on three points in two dimensional euclidean space of three flat edges (trihedron) was studied. The Bohr-Sommerfeld quantization of the area of space is performed. It is shown that it reproduces exactly the equidistant spacing spectrum found elsewhere.

gr-qc↗

arXiv2000

Successive Toroidal Compactifications Of A Closed Bosonic Strings

Successive toro\"ıdal compactifications of a closed bosonic string are studied and some Lie groups solutions are derived.

hep-th↗

arXiv1999