http://depot.umc.edu.dz/handle/123456789/12803 2026-06-01T17:39:49Z 2026-06-01T17:39:49Z Bekhouche, S Bentag, B http://depot.umc.edu.dz/handle/123456789/12813 2022-05-30T10:40:19Z 2016-12-15T00:00:00Z

Path Integral Solution of a Singular Oscillator Potential Bekhouche, S; Bentag, B By path integral formulation and delta functional technics we calculated the propagator of singular oscillator. We have foundthe discrete spectrum and the corresponding wave functions

2016-12-15T00:00:00Z Bouchachi, D Attallah, R http://depot.umc.edu.dz/handle/123456789/12812 2022-05-30T10:40:18Z 2016-12-15T00:00:00Z

The numerical study of the origin of the ultra high energy cosmic rays with CRPropa Bouchachi, D; Attallah, R The origin of ultra-high-energy cosmic rays is one of the most enigmatic questions in modern physics. The study of a such high-energy particles is a new and active research area where scientists wish to find the still-unknown sources and acceleration mechanisms of these particles. This work aims to interpret some recent experimental results provided by the Pierre Auger Observatory concerning the energy spectrum of cosmic rays above 1017 eV. We used the publically available Monte Carlo code CRPropa to simulate the propagation of ultra-high-energy cosmic rays in the universe, taking into account all relevant interactions, and also the influence of the galactic and extragalactic magnetic fields

2016-12-15T00:00:00Z Ramda, K http://depot.umc.edu.dz/handle/123456789/12811 2022-05-30T10:40:17Z 2016-12-15T00:00:00Z

On Yang-Mills Matrix Models: Emergent Geometry Ramda, K One of the most fundamental questions we can ask about a given gauge theory is its phase diagram. We present Monte Carlo simulations, for a simple three matrix model that exhibits an exotic phase transition. we focus on determined the phase structure of the Bosonic d = 3 Yang-Mills Matrix Models, study both theoretically and numerically a three matrix model. The model has a phase transition with two phase, one matrix phase and other geometrical (Fuzzy sphere)

2016-12-15T00:00:00Z Djeha, K Si Lakhal, B http://depot.umc.edu.dz/handle/123456789/12810 2022-05-30T10:40:16Z 2016-12-15T00:00:00Z

Inflationary models and applications Djeha, K; Si Lakhal, B Study the cosmic microwave background: polarization and anisotropy.The inflationary model has been proposed to address the shortcomings of the standard model of cosmology. This cosmological model offers both a solution to the horizon problem and the flatness problem. The idea of inflation states that just after the Big Bang, the observable universe has experienced a violent expansion phase that would allow it to grow a significant factor. The collected data of the European satellite Planck reinforce the scenario of inflation. Launched in 2009, the satellite analyzed for 15 months the "cosmic microwave background: CMB". The analysis focused on the CMB temperature fluctuations. The theory of inflation also provides the polarization of this radiation. The satellite Planck was designed to also measure the polarization parameter. It is proposed in this paper to study the cosmic microwave background radiation, the anisotropy of its temperature and its polarization

2016-12-15T00:00:00Z