### Abstract

Systematic calculations of the Coulomb barrier parameters for collisions of spherical nuclei are performed within the framework of the double folding approach. The value of the parameter (which estimates the Coulomb barrier height) varies in these calculations from 10 MeV up to 150 MeV. The nuclear densities came from the Hartree-Fock calculations which reproduce the experimental charge densities with good accuracy. For the nucleon-nucleon effective interaction two analytical approximations known in the literature are used: the M3Y and Migdal forces. The calculations show that Migdal interaction always results in the higher Coulomb barrier. Moreover, as B _{Z} increases the difference between the M3Y and Migdal barrier heights systematically increases as well. As the result, the above barrier fusion cross sections calculated dynamically with the M3Y forces and surface friction are in agreement with the data. The cross sections calculated with the Migdal forces are always below the experimental data even without accounting for the dissipation.

Original language | English |
---|---|

Article number | 045111 |

Journal | Journal of Physics G: Nuclear and Particle Physics |

Volume | 43 |

Issue number | 4 |

DOIs | |

Publication status | Published - 22 Feb 2016 |

### Fingerprint

### Keywords

- double folding potential
- heavy-ion fusion
- Migdal and M3Y NN forces

### ASJC Scopus subject areas

- Nuclear and High Energy Physics

### Cite this

*Journal of Physics G: Nuclear and Particle Physics*,

*43*(4), [045111]. https://doi.org/10.1088/0954-3899/43/4/045111

**Describing the heavy-ion above-barrier fusion using the bare potentials resulting from Migdal and M3Y double-folding approaches.** / Gontchar, I. I.; Chushnyakova, M. V.

Research output: Contribution to journal › Article

*Journal of Physics G: Nuclear and Particle Physics*, vol. 43, no. 4, 045111. https://doi.org/10.1088/0954-3899/43/4/045111

}

TY - JOUR

T1 - Describing the heavy-ion above-barrier fusion using the bare potentials resulting from Migdal and M3Y double-folding approaches

AU - Gontchar, I. I.

AU - Chushnyakova, M. V.

PY - 2016/2/22

Y1 - 2016/2/22

N2 - Systematic calculations of the Coulomb barrier parameters for collisions of spherical nuclei are performed within the framework of the double folding approach. The value of the parameter (which estimates the Coulomb barrier height) varies in these calculations from 10 MeV up to 150 MeV. The nuclear densities came from the Hartree-Fock calculations which reproduce the experimental charge densities with good accuracy. For the nucleon-nucleon effective interaction two analytical approximations known in the literature are used: the M3Y and Migdal forces. The calculations show that Migdal interaction always results in the higher Coulomb barrier. Moreover, as B Z increases the difference between the M3Y and Migdal barrier heights systematically increases as well. As the result, the above barrier fusion cross sections calculated dynamically with the M3Y forces and surface friction are in agreement with the data. The cross sections calculated with the Migdal forces are always below the experimental data even without accounting for the dissipation.

AB - Systematic calculations of the Coulomb barrier parameters for collisions of spherical nuclei are performed within the framework of the double folding approach. The value of the parameter (which estimates the Coulomb barrier height) varies in these calculations from 10 MeV up to 150 MeV. The nuclear densities came from the Hartree-Fock calculations which reproduce the experimental charge densities with good accuracy. For the nucleon-nucleon effective interaction two analytical approximations known in the literature are used: the M3Y and Migdal forces. The calculations show that Migdal interaction always results in the higher Coulomb barrier. Moreover, as B Z increases the difference between the M3Y and Migdal barrier heights systematically increases as well. As the result, the above barrier fusion cross sections calculated dynamically with the M3Y forces and surface friction are in agreement with the data. The cross sections calculated with the Migdal forces are always below the experimental data even without accounting for the dissipation.

KW - double folding potential

KW - heavy-ion fusion

KW - Migdal and M3Y NN forces

UR - http://www.scopus.com/inward/record.url?scp=84961113871&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84961113871&partnerID=8YFLogxK

U2 - 10.1088/0954-3899/43/4/045111

DO - 10.1088/0954-3899/43/4/045111

M3 - Article

VL - 43

JO - Journal of Physics G: Nuclear and Particle Physics

JF - Journal of Physics G: Nuclear and Particle Physics

SN - 0954-3899

IS - 4

M1 - 045111

ER -