Neutron matter densities in the even Ni isotopes

Alkhazov, G.; Beurtey, R.; Boudard, A.; Bruge, G.; Catz, H.; Chaumeaux, A.; Couvert, P.; Escudié, J.L.; Fontaine, J.M.; Garçon, M.; Guyot, J. C.; Legrand, Dominique; Lugol, J.C.; Lombard, R.M.; Matoba, M.; Terrien, Y.

doi:10.1016/0370-2693(77)90430-0

Cited by 41 publications

(15 citation statements)

References 5 publications

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“…The rms radii of 58 Ni deduced from the experiments at 100 MeV/u and 150 MeV/u were 3.79(8) fm and 3.76(7) fm, respectively. These values are fully consistent with the ones reported from experiments of α scattering: 3.74(10) fm [3], and also from proton scattering: 3.74(5) fm [38]. However, we should note that the nuclear-matter density distribution extracted in this analysis also contains the finite size of the nucleons.…”

Section: A Derivation Of the Nuclear-matter Radiussupporting

confidence: 81%

Nuclear-matter radius studies fromNi58(α,α)experiments at the GSI Experimental Storage Ring with the EXL facility

Zamora¹,

Aumann²,

Bagchi³

et al. 2017

Phys. Rev. C

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A novel method for measuring nuclear reactions in inverse kinematics with stored ion beams was successfully used to extract the nuclear-matter radius of 58 Ni. The experiment was performed at the experimental heavy-ion storage ring at the GSI facility using a stored 58 Ni beam at energies of 100 and 150 MeV/u and an internal helium gas-jet target. Elastically scattered α-recoils at low momentum transfers were measured with an in-ring detector system compatible with ultrahigh vacuum. Experimental angular distributions were fitted using density-dependent optical model potentials within the eikonal approximation. This permitted the extraction of the point-matter root-mean-square radius of 58 Ni with an average value of 3.70(7) fm. Results from this work are in good agreement with several experiments performed in the past in normal kinematics. This pioneering experiment demonstrates a major breakthrough towards future investigations with far-from-stability stored beams using the present technique.

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Section: A Derivation Of the Nuclear-matter Radiussupporting

confidence: 81%

Nuclear-matter radius studies fromNi58(α,α)experiments at the GSI Experimental Storage Ring with the EXL facility

Zamora¹,

Aumann²,

Bagchi³

et al. 2017

Phys. Rev. C

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“…Once the elementary amplitude is known, as it is largely the case for the pN scattering, one can apply the GM for the studies of the nucleon and neutron density profiles. In late 70-s this has been in the focus of the analyses of the elastic pA scattering experiments at 1 GeV in Gatchina [5] and Saclay [6,7] (see ref. [8] for the review of the GM studies of pA scattering).…”

Section: Introductionmentioning

confidence: 99%

Elastic scattering, polarization and absorption of relativistic antiprotons on nuclei

Larionov

Lenske

2017

Nuclear Physics A

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We perform Glauber model calculations of the antiproton-nucleus elastic and quasielastic scattering and absorption in the beam momentum range ∼ 0.5 ÷ 10 GeV/c. A good agreement of our calculations with available LEAR data and with earlier Glauber model studies of thepA elastic scattering allows us to make predictions at the beam momenta of ∼ 10 GeV/c, i.e. at the regime of the PANDA experiment at FAIR. The comparison with the proton-nucleus elastic scattering cross sections shows that the diffractive minima are much deeper in thepA case due to smaller absolute value of the ratio of the real-to-imaginary part of the elementary elastic amplitude. Significant polarization signal forpA elastic scattering at 10 GeV/c is expected. We have also revealed a strong dependence of thepA absorption cross section on the slope parameter of the transverse momentum dependence of the elementarypN amplitude. ThepA optical potential is discussed.

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“…(4.1), for the matter density distribution of 58 Ni to create the pseudo data in Subsection 4.2, because the experimental data of differential cross sections of electron-nucleus elastic scattering for various nuclei are fitted well with this form, including 58 Ni [54], and because the matter density distribution of 58 Ni is considered to be quite similar to the charge density distribution. Actually, the experimental data of differential cross section of proton-58 Ni elastic scattering are fitted well with this form [31].…”

Section: B Eikonal Expressionsmentioning

confidence: 70%

“…The pseudo data are generated for the proton incident energy of 1.047 [GeV]. The energy is chosen to be the same as that of the proton-nucleus scattering experiments at SATURN, Saclay [31,32,33], because the experimental data and their analyses have shown that the eikonal approximation yields reasonably realistic results (See Fig. 1 in the next section).…”

Section: Overview Of Our Approachmentioning

confidence: 99%

“…As such, it is logically immaterial how reliable the relation itself is, but it becomes an issue how realistic or relevant to future experiments. Figure 1 compares the real experimental data of proton-58 Ni elastic scattering cross sections at 1.047 [GeV] from SATURN, Saclay [31,32,33] with the calculation. Note that in our later model calculations, we will use the same nuclear density at the same kinetic energy as used here.…”

Section: Fitting Proceduresmentioning

confidence: 99%

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Determination of Matter Surface Distribution of Neutron-rich Nuclei

2003

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We demonstrate that the matter density distribution in the surface region is determined well by the use of the relatively low-intensity beams that become available at the upcoming radioactive beam facilities. Following the method used in the analyses of electron scattering, we examine how well the density distribution is determined in a model-independent way by generating pseudo data and by carefully applying statistical and systematic error analyses. We also study how the determination becomes deteriorated in the central region of the density, as the quality of data decreases. Determination of the density distributions of neutron-rich nuclei is performed by fixing parameters in the basis functions to the neighboring stable nuclei. The procedure allows that the knowledge of the density distributions of stable nuclei assists to strengthen the determination of their unstable isotopes.Comment: 41 pages, latex, 27 figure

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Neutron matter densities in the even Ni isotopes

Cited by 41 publications

References 5 publications

Nuclear-matter radius studies fromNi58(α,α)experiments at the GSI Experimental Storage Ring with the EXL facility

Nuclear-matter radius studies fromNi58(α,α)experiments at the GSI Experimental Storage Ring with the EXL facility

Elastic scattering, polarization and absorption of relativistic antiprotons on nuclei

Determination of Matter Surface Distribution of Neutron-rich Nuclei

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