Browsing by Author "Lecheheb, A"

Now showing 1 - 2 of 2
  • No Thumbnail Available
    Item
    DKP particle in time-dependent field
    (CZECHOSLOVAK JOURNAL OF PHYSICS, 2006) Merad, M; Bada, H; Lecheheb, A
    We present the solution of Duffin–Kemmer–Petiau (DKP) equation of spin 0 and 1 in the case of the time-dependent mass in the presence of a time-dependent linear scalar field. Calculation is carried out analytically, the wave functions are then deduced for both cases and are connected respectively to the auxiliary equations. The adiabatic approximation is deduced and reveals that in this study we have an obvious absence of the geometrical amplitude factor.
  • No Thumbnail Available
    Item
    Path integral treatment for a Coulomb system constrained on D-dimensional sphere and hyperboloid
    (ELSEVIER, 2007) Lecheheb, A; Merad, M; Boudjedaa, T
    The propagator relating to the evolution of a particle on the D-sphere and the D-pseudosphere, subjected to the Coulomb potential, was reconsidered in the Faddeev–Senjanovic formalism. The mid-point is privileged. The space–time transformations used make it possible to regularize the singularity and to bring back the problem to its dynamical symmetry SU(1, 1)