Systematics of nucleon density distributions and neutron skin of nuclei

Seif, W. M.; Mansour, Hesham

doi:10.1142/s0218301315500834

Cited by 58 publications

(64 citation statements)

References 54 publications

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“…It is possible to estimate the neutron density at the scission point and to understand whether the density values derived from the Pauli blocking estimates are reasonable. For an exploratory calculation, we use the parametrization of neutron/proton densities in nuclei n n/ p (r ) = n 0,n/ p 1 + e (r −R n/ p )/a n/ p (12) with R n = (0.953N 1/3 + 0.015Z + 0.774) fm, R p = (1.322Z 1/3 + 0.007N + 0.0224) fm, and diffusivities a n = (0.446 + 0.072N /Z ) fm, a p = (0.449 + 0.071Z /N ) fm [47]. The neutron density at distance d sc /2 = 2.85 fm from the surface is n n = 0.0005965 fm −3 for each 124 48 Cd nucleus so that the value of the neutron density in the neck region is about n n (z = 0) = n scission n ≈ 0.0012 fm −3 .…”

Section: External Mean-field Potentialmentioning

confidence: 99%

Light element ($$Z=1,2$$) production from spontaneous ternary fission of $$^{252}$$Cf

2020

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The yields of light elements ($$Z=1,2$$ Z = 1 , 2 ) obtained from spontaneous ternary fission of $$^{252}$$ 252 Cf are treated within a nonequilibrium approach, and the contribution of unstable nuclei and excited bound states is taken into account. These light cluster yields may be used to probe dense matter, and to infer in-medium corrections such as Pauli blocking which is determined by the nucleon density. Continuum correlations are calculated from scattering phase shifts using the Beth-Uhlenbeck formula, and the effect of medium modification is estimated. The relevant distribution is reconstructed from the measured yields of isotopes. This describes the state of the nucleon system at scission and cluster formation, using only three Lagrange parameters which are the nonequilibrium counterparts of the temperature and chemical potentials, as defined in thermodynamic equilibrium. We concluded that a simple nuclear statistical equilibrium model neglecting continuum correlations and medium effects is not able to describe the measured distribution of H and He isotopes. Moreover, the freeze-out concept may serve as an important ingredient to the nonequilibrium approach using the relevant statistical operator concept.

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Section: External Mean-field Potentialmentioning

confidence: 99%

Light element ($$Z=1,2$$) production from spontaneous ternary fission of $$^{252}$$Cf

2020

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“…For the proton and neutron radii, we use the fits for the half density radii of nuclei (in units of femtometer) given in ref. [19].…”

Section: Nuclear Density Corrections To K P F and K N Fmentioning

confidence: 99%

Removal energies and final state interaction in lepton nucleus scattering

Bodek

Cai

2019

Eur. Phys. J. C

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We investigate the binding energy parameters that should be used in modeling electron and neutrino scattering from nucleons bound in a nucleus within the framework of the impulse approximation. We discuss the relation between binding energy, missing energy, removal energy ( ), spectral functions and shell model energy levels and extract updated removal energy parameters from ee p spectral function data. We address the difference in parameters for scattering from bound protons and neutrons. We also use inclusive e-A data to extract an empirical parameter UF SI ((q3 + k) 2 ) to account for the interaction of final state nucleons (FSI) with the optical potential of the nucleus. Similarly we use V ef f to account for the Coulomb potential of the nucleus. With three parameters , UF SI ((q3 + k) 2 ) and V ef f we can describe the energy of final state electrons for all available electron QE scattering data. The use of the updated parameters in neutrino Monte Carlo generators reduces the systematic uncertainty in the combined removal energy (with FSI corrections) from ± 20 MeV to ± 5 MeV.PACS. 13.60.Hb Total and inclusive cross sections (including deep-inelastic processes) -13.15.+g Neutrino interactions -13.60.-r Photon and charged-lepton interactions with hadrons

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“…The alpha transfer reaction 28 Si 20 Ne, 16 O 32 S at 52.3 and 70 MeV was measured by using ICARE target facility of the Heavy Ion Laboratory of the University of Warsaw [4,5]. The experimental data were analyzed theoretically.…”

Section: Introductionmentioning

confidence: 99%

“…

The α-transfer reaction 28 Si 20 Ne, 16 O 32 S at 52.3 and 70 MeV is examined by using the double-folding (DF) based on the optical model.The real part is obtained for ten different density distributions of 20 Ne projectile. For the imaginary part, the Woods-Saxon potential is used.The obtained results are compared with the experimental data of α-transfer reaction as well as the literature results.

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An investigation of alpha-transfer reaction 28Si(20Ne,16O)32S

Aygun

2021

Rev. Mex. Fís.

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The alpha-transfer reaction 28Si(20Ne,16O)32S at 52.3 and 70 MeV is examined by using the double-folding (DF) based on the optical model. The real part is obtained for ten different density distributions of 20Ne projectile. For the imaginary part, the Woods-Saxon potential is used. The obtained results are compared with the experimental data of alpha-transfer reaction as well as the literature results. It is seen that the results are in good agreement with the data, and are better than the literature results.

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Systematics of nucleon density distributions and neutron skin of nuclei

Cited by 58 publications

References 54 publications

Light element ($$Z=1,2$$) production from spontaneous ternary fission of $$^{252}$$Cf

Light element ($$Z=1,2$$) production from spontaneous ternary fission of $$^{252}$$Cf

Removal energies and final state interaction in lepton nucleus scattering

An investigation of alpha-transfer reaction 28Si(20Ne,16O)32S

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