Experimental determination of the ion-ion potential in the N = 50 target region: A tool to probe ground-state nuclear densities

Alvarez, Marcos César; Chamon, L. C.; Pereira, Daniervelin Renata Marques; Rossi, E. S.; Silva, C.P.; Gasques, L. R.; Dias, H.; Roos, M.

doi:10.1016/s0375-9474(99)00304-8

Cited by 48 publications

(34 citation statements)

References 24 publications

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“…The interaction takes into account the exchange of nucleons between reacting nuclei. The potential has been extensively tested in the description of different nuclear interaction processes (such as quasi-elastic scattering and fusion reactions), over a broad spectrum of energies [22,23,[27][28][29][30][31][32][33][34][35]. In the context of the São Paulo potential, the real part of the nuclear interaction is associated with the folding potential through the relation…”

Section: Calculation Of Astrophysical S-factorsmentioning

confidence: 99%

Astrophysical S factors for fusion reactions involving C, O, Ne, and Mg isotopes

Beard

Afanasjev

Chamon

et al. 2010

Atomic Data and Nuclear Data Tables

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Using the São Paulo potential and the barrier penetration formalism we have calculated the astrophysical factor S(E) for 946 fusion reactions involving stable and neutron-rich isotopes of C, O, Ne, and Mg for center-of-mass energies E varying from 2 MeV to ≈18-30 MeV (covering the range below and above the Coulomb barrier). We have parameterized the energy dependence S(E) by an accurate universal 9-parameter analytic expression and present tables of fit parameters for all the reactions. We also discuss the reduced 3-parameter version of our fit which is highly accurate at energies below the Coulomb barrier, and outline the procedure for calculating the reaction rates. The results can be easily converted to thermonuclear or pycnonuclear reaction rates to simulate various nuclear burning phenomena, in particular, stellar burning at high temperatures and nucleosynthesis in high density environments.

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Section: Calculation Of Astrophysical S-factorsmentioning

confidence: 99%

Astrophysical S factors for fusion reactions involving C, O, Ne, and Mg isotopes

Beard

Afanasjev

Chamon

et al. 2010

Atomic Data and Nuclear Data Tables

Self Cite

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“…The dependence of the nucleon-nucleon strong interaction with a repulsive core on the distance r was approximated by a combination of Gaussian type exponentials similar to the M3Y potential [21,22] …”

Section: Theorymentioning

confidence: 99%

Application of CUDA technology to calculation of ground states of few-body nuclei by Feynman's continual integrals method

Науменко

Самарин

2016

JSFI

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The possibility of application of modern parallel computing solutions to speed up the calculations of ground states of few-body nuclei by Feynman's continual integrals method has been investigated. These calculations may sometimes require large computational time, particularly in the case of systems with many degrees of freedom. This paper presents the results of application of general-purpose computing on graphics processing units (GPGPU). The energy and the square modulus of the wave function of the ground states of several few-body nuclei have been calculated using NVIDIA CUDA technology. The results show that the use of GPGPU significantly increases the speed of calculations.

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“…The SP potential has been successful in describing the elastic scattering and peripheral reaction 044606-2 channels for several heavy-ion systems in a very wide energy region [18,[20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35]. In the present work, we use the SP interaction generalized for deformed nuclei [37,38].…”

Section: Zpm Model and Sp Potentialmentioning

confidence: 99%

“…The analyses are performed in the context of the ZPM model and using the São Paulo (SP) potential [17][18][19] as the bare interaction. The SP potential has been successful in describing the elastic scattering and peripheral reaction channels for several systems in a wide energy region, from sub-barrier to intermediate energies [18,[20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35]. Therefore, the bare interaction assumed here to analyze the fusion data is also appropriate to describe the elastic scattering process.…”

Section: Introductionmentioning

confidence: 99%

Consistent analysis of fusion data without adjustable parameters for a wide variety of heavy-ion systems

et al. 2007

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We have calculated fusion cross sections for 64 heavy-ion systems based on a method that takes into account the couplings to a complete set of states for surface vibrations of the nuclear densities. For the nuclear interaction we have assumed the parameter-free São Paulo potential. The predictions have been obtained without using any adjustable parameter, and are in good agreement with the experimental results for most of the systems, even at sub-barrier energies.

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Experimental determination of the ion-ion potential in the N = 50 target region: A tool to probe ground-state nuclear densities

Cited by 48 publications

References 24 publications

Astrophysical S factors for fusion reactions involving C, O, Ne, and Mg isotopes

Astrophysical S factors for fusion reactions involving C, O, Ne, and Mg isotopes

Application of CUDA technology to calculation of ground states of few-body nuclei by Feynman's continual integrals method

Consistent analysis of fusion data without adjustable parameters for a wide variety of heavy-ion systems

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