Investigation of the threshold anomaly in the near-barrier elastic scattering of 7Li on 116Sn

Deshmukh, N.; Mukherjee, S.; Nayak, B. K.; Biswas, D. C.; Santra, S.; Mirgule, E. T.; Appannababu, S.; Patel, D.; Saxena, A.; Choudhury, R. K.; Lubián, J.; Gomes, P. R. S.

doi:10.1140/epja/i2011-11118-0

Cited by 23 publications

(15 citation statements)

References 31 publications

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“…6 shows the elastic-scattering angular distribution for 116 Sn target at incident energies from 18.0 MeV to 35.0 MeV. The calculated result from the MOP is in good agreement with experimental data [10] except for those at incident energies 22.0 MeV, 24.0 MeV and 26.0 MeV in large angles. It can be seen that the MOP reproduces the measurements a little better than the GOP does at relatively lower energies.…”

Section: Calculated Results and Analysissupporting

confidence: 63%

“…The solid and dash lines denote the results calculated by the MOP and the GOP respectively. [21,46,47,10,28].…”

Section: Calculated Results and Analysismentioning

confidence: 99%

“…A semi-microscopic optical potential, whose real part is generated by double folding model and nucleon-nucleon effective interaction and imaginary part is in the Woods-Saxon form, is given by Woods et al [9] and used to analyze the elastic scattering data for 15 N and 25 Mg target. Deshmukh et al [10] provided a Wood-Saxon form optical potential, while it can only be used for 116 Sn. An optical potential provided by Camacho et al [11] meets the dispersion relation of real part and imaginary part, but it is only suitable for 28 Si target.…”

Section: Introductionmentioning

confidence: 99%

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Microscopic study of the $^{7}$Li-nucleus potential

Chen,

Guo,

Sun

et al. 2020

Preprint

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The optical potential without any free parameters for 7 Li-nucleus interaction system is studied in a microscopic approach. It is obtained by folding the microscopic optical potentials of the constituent nucleons of 7 Li over their density distributions. We employ an isospin-dependent nucleon microscopic optical potential, which is based on the Skyrme nucleon-nucleon effective interaction and derived by using the Green's function method, to be the nucleon optical potential. Harmonic oscillator shell model is used to describe the internal wave function of 7 Li and get the nucleon density distribution. The 7 Li microscopic optical potential is used to predict the reaction cross sections and elastic scattering angular distributions for target range from 27 Al to 208 Pb and energy range below 450 MeV. Generally the results can reproduce the measured data reasonably well. In addition, the microscopic optical potential is comparable to a global phenomenological optical potential in fitting the presently existing measured data generally.

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Section: Calculated Results and Analysissupporting

confidence: 63%

“…The solid and dash lines denote the results calculated by the MOP and the GOP respectively. [21,46,47,10,28].…”

Section: Calculated Results and Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Microscopic study of the $^{7}$Li-nucleus potential

Chen,

Guo,

Sun

et al. 2020

Preprint

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“…In the present work, we have calculated the volume integrals of both the real part (J v ) and the imaginary part ( J w ) of the optical potential. It is known that the volume integrals show similar behaviors for good fits of the optical potentials with different parameters [37]. The formulas used in this context were…”

Section: Double-folding Model Analysismentioning

confidence: 99%

“…We should point out that the systematics of the energy dependence of the OM potential for 7 Li scattering could not be shown in a precise way. With this goal, Deshmukh et al [37] measured the elastic scattering data of 7 Li scattered from 116 Sn at various incident energies and analyzed the experimental data theoretically. They reported that the 7 Li + 116 Sn system at energies around and below the Coulomb barrier showed the absence of the threshold anomaly because of becoming energy-independent of real and imaginary parts of the optical potential.…”

Section: Double-folding Model Analysismentioning

confidence: 99%

A study on $^{7}$Li + $^{120}$Sn quasi-elastic scattering

Aygun¹,

Aygün²

2016

Turk J Phys

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In the present study, we reexamine quasi-elastic scattering of 7 Li by 120 Sn at incident energies E Lab = 19.5, 20.5, and 25.0 MeV. The theoretical results are obtained by using both a phenomenological model and double-folding model (DFM) within the framework of an optical model. We also investigate the role of the surface potential, which is connected to direct reactions. The agreement between the phenomenological model and the DFM is shown in comparison to each other in connection with the experimental data. This comparison provides information about the similarities and the differences between the models used during the calculations.

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