Physique: Recent submissions
Now showing items 120 of 472

Path Integral Solution of a Singular Oscillator Potential
(Université des Frères Mentouri Constantine, 20161215)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 
The numerical study of the origin of the ultra high energy cosmic rays with CRPropa
(Université des Frères Mentouri Constantine, 20161215)The origin of ultrahighenergy cosmic rays is one of the most enigmatic questions in modern physics. The study of a such highenergy particles is a new and active research area where scientists wish to find the stillunknown ... 
On YangMills Matrix Models: Emergent Geometry
(Université des Frères Mentouri Constantine, 20161215)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 ... 
Inflationary models and applications
(Université des Frères Mentouri Constantine, 20161215)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 ... 
Dose Evaluation in adaptive radiotherapy in head and neck cancers
(Université des Frères Mentouri Constantine, 20161215)Recent developments in radiotherapy techniques, particularly VMAT technique is a tool of choice in the treatment of tumors with complex shapes such as head and neck cancers. Patients with head and neck cancer are prone ... 
Nuclei structure around shell closure N = 82
(Université des Frères Mentouri Constantine, 20161215)The nuclei with A=140 having a few holes in the N =82 shell closure offer a fertile region to investigate the shape evolution. They are spherical or only slightly deformed in the ground state and at small angular momenta, ... 
New calculation of L1 subshell yields fluorescence of heavy elements
(Université des Frères Mentouri Constantine, 20161215)The analytical methods based on Xray fluorescence have a great importance for a number of practical applications in a variety of fields including atomic physics, Xray fluorescence surface chemical analysis, medical ... 
Relativistic calculations of Kshell photoionization crosssections for 𝟑𝟐 𝐒 at 59.6 keV excitation energy
(Université des Frères Mentouri Constantine, 20161215)In this work we calculate photoionization Xray crosssections of Kshell vacancies in S at incident photon energy of 59.6 keV using the DiracFock method and the MCDFGME (Multi Configuration Dirac Fock and General Matrix ... 
Relativistic K shell decay rates and fluorescence yield for Fe
(Université des Frères Mentouri Constantine, 20161215)In this work, we derive the Kshell fluorescence yield using a DiracFock model. To compute, radiationless and radiative transition rates we have used the MCDF code of Desclaux and Indelicato [1 3]. The wave functions ... 
Calculations of Maxwellian Averaged capture Cross Sections Using the ENDF/B VII.1, KADONiS, EXFOR and JEFF3.1 evaluated nuclear reaction data libraries
(Université des Frères Mentouri Constantine, 20161215)We calculate the Maxwellianaveraged cross sections (MACS) of the stellar nucleosynthesis reactions (n,g ) using the ENDF/BVII.1, KADONiS, EXFOR and JEFF3.1 evaluated nuclear data libraries. The calculated capture cross ... 
Mesoscopicbased approaches in thermal science beyond NavierStokes’s traditional methods: Modeling, simulations and applications
(Université des Frères Mentouri Constantine, 20161215)In the field of computational dynamics, a variety of numerical methods has been constructed with the aim at computer simulation of flow phenomena. Some of these methods rely on microscopic scales (e.g., Molecular Dynamics ... 
Dose Evaluation in adaptive radiotherapy in head and neck cancers
(Université des Frères Mentouri Constantine, 20161215)Recent developments in radiotherapy techniques, particularly VMAT technique is a tool of choice in the treatment of tumors with complex shapes such as head and neck cancers. Patients with head and neck cancer are prone ... 
Nuclei structure around shell closure N = 82
(Université des Frères Mentouri Constantine, 20161215)The nuclei with A=140 having a few holes in the N =82 shell closure offer a fertile region to investigate the shape evolution. They are spherical or only slightly deformed in the ground state and at small angular momenta, ... 
New calculation of L1 subshell yields fluorescence of heavy elements
(Université des Frères Mentouri Constantine, 20161215)The analytical methods based on Xray fluorescence have a great importance for a number of practical applications in a variety of fields including atomic physics, Xray fluorescence surface chemical analysis, medical ... 
Relativistic calculations of Kshell photoionization crosssections for 16 𝟑𝟐 𝐒 at 59.6 keV excitation energy
(Université des Frères Mentouri Constantine, 20161215)In this work we calculate photoionization Xray crosssections of Kshell vacancies in S at incident photon energy of 59.6 keV using the DiracFock method and the MCDFGME (Multi Configuration Dirac Fock and General Matrix ... 
Relativistic K shell decay rates and fluorescence yield for Fe
(Université des Frères Mentouri Constantine, 20161215)In this work, we derive the Kshell fluorescence yield using a DiracFock model. To compute, radiationless and radiative transition rates we have used the MCDF code of Desclaux and Indelicato [1 3]. The wave functions ... 
Calculations of Maxwellian Averaged capture Cross Sections Using the ENDF/B VII.1, KADONiS, EXFOR and JEFF3.1 evaluated nuclear reaction data libraries
(Université des Frères Mentouri Constantine, 20161215)We calculate the Maxwellianaveraged cross sections (MACS) of the stellar nucleosynthesis reactions (n,g ) using the ENDF/BVII.1, KADONiS, EXFOR and JEFF3.1 evaluated nuclear data libraries. The calculated capture cross ... 
Theoretical Physics in a Nutshell From QED to UHECR, GRB's and more
(Université des Frères Mentouri Constantine, 20161215)Theoretical Physics is the leading edge of physics. It is the exploration of its ever evolving frontiers with a heavy use of the mathematical tool, not only as its natural language but also as its source of inspiration and ... 
Sur les difficultés inhérentes à l'opération de la détermination de la symétrie de la maille à partir d'un diagramme de poudre
(Université des Frères Mentouri Constantine, 20161215)La résolution du problème de la détermination de la symétrie de la maille appelée « indexation », à partir d‘un diagramme de diffraction sur un composé finement cristallisé, peut comporter plusieurs obstacles. Dans cet ... 
Path Integral Solution of a Singular Oscillator Potential
(Université des Frères Mentouri Constantine, 20161215)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