The 12C+24Mg elastic scattering: An example of anomalous transparency at coulomb barrier energies

Analysis of the12C+24Mgreaction using a new coupling potential

“…24 Mg and 12 C+ 12 C have been extensively investigated over the last 40 years and a large body of experimental data has been accumulated from the systematic studies of these reactions (see [1][2][3] and references therein). A variety of theoretical accounts, based on dynamical models or purely phenomenological treatments, have been proposed to explain the experimental data [1,4,5].…”

“…The elastic and inelastic scattering data of the 12 C+ 24 Mg system have been studied extensively and some of the above-mentioned problems could not be accounted for [2,[8][9][10]. The most extensive study for this system was carried out by Sciani et al [2] who used Q-dependent potentials whose parameters had different values for the incoming and outgoing channels in the coupled-channels calculations.…”

“…The most extensive study for this system was carried out by Sciani et al [2] who used Q-dependent potentials whose parameters had different values for the incoming and outgoing channels in the coupled-channels calculations. Without Q-dependent potentials, they observed that the theoretical calculations and the experimental data were completely out-of-phase and could not reproduce the experimental data.…”

“…It has been the practice to increase or decrease artificially the β value to obtain the magnitude of the 2 + state data correctly in the standard coupled-channels calculations, without giving the physical justification other than stating that it is required to fit the data [2,8,9,[12][13][14].…”

“…The out-of-phase between the theoretical predictions and the experimental data for the ground and 2 + states has also been observed and without optimizing the β value, it has been impossible to obtain a simultaneous fit to the elastic and inelastic scattering data [2,[11][12][13][14].…”