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2 Open Physics

2 2012

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Phase shift analysis of the 6He+208Pb and the 6He+197Au systems

100%

Bayrak O. , Boztosun I.

Open Physics

2012

tom 10

nr 1

109-115

We present the elastic scattering of the 6He+208Pb and the 6He+197Au systems at the laboratory energy of E lab=27 MeV within the framework of the McIntyre parametrization, and systematically investigate χ 2/N analysis of both systems to obtain an excellent agreement between the theoretical results and the experimental data. We find large diffusivity parameters indicating long range absorption mechanisms. We also show that both systems lack both the nuclear and the Coulomb rainbow scattering for obtained S-matrix parameters.

Effect of the velocity-dependent potentials on the energy eigenvalues of the Morse potential

80%

Soylu A. , Bayrak O. , Boztosun I.

Open Physics

2012

tom 10

nr 4

953-959

We investigate the effect of the isotropic velocity-dependent potentials on the bound state energy eigenvalues of the Morse potential for any quantum states. When the velocity-dependent term is used as a constant parameter, ρ(r) = ρ 0, the energy eigenvalues can be obtained analytically by using the Pekeris approximation. When the velocity-dependent term is considered as an harmonic oscillator type, ρ(r) = ρ 0 r 2, we show how to obtain the energy eigenvalues of the Morse potential without any approximation for any n and ℓ quantum states by using numerical calculations. The calculations have been performed for different energy eigenvalues and different numerical values of ρ 0, in order to show the contribution of the velocity-dependent potential on the energy eigenvalues of the Morse potential.