MEASUREMENTS OF INTERACTION CROSS SECTIONS TOWARDS NEUTRON-RICH <font>Ne</font> ISOTOPES AT RIBF

Takechi, M.; Ohtsubo, T.; Kuboki, T.; Fukuda, M.; Nishimura, D.; Suzuki, Toshio; Yamaguchi, Takayuki; Ozawa, A.; Moriguchi, T.; Sumikama, T.; Geißel, H.; Aoi, N.; Fukuda, N.; Hachiuma, I.; Inabe, N.; Ishibashi, Yuji; Itoh, Yoshiki; Kameda, D.; Kubo, T.; Kusaka, K.; Lantz, Mattias; Mihara, M.; Miyashita, Y.; Momota, S.; Namihira, K.; Ohishi, Hiroyuki; Ohkuma, Y.; Ohnishi, T.; Ohtake, M.; Ogawa, K.; Shimbara, Y.; Suda, T.; Suzuki, Shinji; Takeda, Hiroyuki; Tanaka, K.; Watanabe, Ritsuko; Winkler, M.; Yanagisawa, Y.; Yasuda, Yusuke; Yoshinaga, K.; Yoshida, Akihiro; Yoshida, Kôichi

doi:10.1142/s021773231000054x

Cited by 27 publications

(36 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, nuclear deformation plays a crucial role in enlarging the nuclear radius, because it drastically changes the density profile at around the nuclear surface, and has actually been confirmed by the systematic analyses of the total reaction cross sections on a carbon target [4][5][6][7][8][9][10]. Also, it is found that excitations of the outermost single-particle neutron orbits play an essential role to determine the low-lying electric-dipole strengths of neutron-rich isotopes [11][12][13][14].…”

Section: Introductionmentioning

confidence: 76%

Nuclear surface diffuseness revealed in nucleon-nucleus diffraction

2018

View full text Add to dashboard Cite

The nuclear surface provides useful information on nuclear radius, nuclear structure, as well as properties of nuclear matter. We discuss the relationship between the nuclear surface diffuseness and elastic scattering differential cross section at the first diffraction peak of high-energy nucleon-nucleus scattering as an efficient tool in order to extract the nuclear surface information from limited experimental data involving short-lived unstable nuclei. The high-energy reaction is described by a reliable microscopic reaction theory, the Glauber model. Extending the idea of the black sphere model, we find one-to-one correspondence between the nuclear bulk structure information and proton-nucleus elastic scattering diffraction peak. This implies that we can extract both the nuclear radius and diffuseness simultaneously, using the position of the first diffraction peak and its magnitude of the elastic scattering differential cross section. We confirm the reliability of this approach by using realistic density distributions obtained by a mean-field model.

show abstract

Section: Introductionmentioning

confidence: 76%

Nuclear surface diffuseness revealed in nucleon-nucleus diffraction

2018

View full text Add to dashboard Cite

show abstract

“…Validity of the resulting density distributions can be confirmed by comparison with experimental data in the following way. These density distributions, once build into an appropriate reaction theory based on the Glauber formalism [35], reproduce the total reaction cross sections [34,36] obtained by the recent measurements [37,38] within error bars.…”

Section: Resultsmentioning

confidence: 97%

Neutron-skin thickness determines the surface tension of a compressible nuclear droplet

Horiuchi¹,

Ebata²,

Iida³

2017

Phys. Rev. C

View full text Add to dashboard Cite

We systematically investigate the neutron-skin thickness of neutron-rich nuclei within a compressible droplet model, which includes several parameters characterizing the surface tension and the equation of state (EOS) of asymmetric nuclear matter as well as corrections due to the surface diffuseness. Such a systematic analysis helps towards constraining the EOS parameters of asymmetric nuclear matter and the poorly known density dependence of the surface tension; the latter is estimated with help of available experimental data for the neutron and proton density distributions and the nuclear masses. Validity of the present approach is confirmed by calculating realistic density distributions of Ca, Ni, Zr, Sn, Yb, and Pb isotopes within a microscopic Skyrme-Hartree-Fock+BCS method for various sets of the effective nuclear force. Our macroscopic model accompanied by the diffuseness corrections works well in the sense that it well reproduces the evolution of the microscopically deduced neutron-skin thickness with respect to the neutron number for selected sets of the effective nuclear force. We find that the surface tension of the compressible nuclear droplet is a key to bridging a gap between microscopic and macroscopic approaches.

show abstract

“…Use of such inclusive observables has some advantages: The theory of describing the cross section is well established, the cross sections can be measured for almost all nuclei as long as the beam intensity is sufficient, and the different sensitivity to the nuclear density profile can be controlled by a choice of a target nucleus and an incident energy. Systematic analyses of nuclear matter radii with the total reaction cross sections on 12 C target incident at 200 MeV/nucleon have revealed structure changes and the role of excess neutrons of light neutron-rich unstable nuclei [14][15][16][17][18][19][20][21]. We remark that the total reaction cross sections on 1 H target is also useful because the probe has different sensitivity to protons and neutrons in the projectile nucleus depending on incident energies that can be used to extract the neutron-skin thickness of unstable nuclei [22,23].…”

Section: Introductionmentioning

confidence: 99%

Examination of the C22 radius determination with interaction cross sections

Nagahisa

Horiuchi

2018

Phys. Rev. C

View full text Add to dashboard Cite

A nuclear radius of 22 C is investigated with the total reaction cross sections at medium-to high-incident energies in order to resolve the radius puzzle in which two recent interaction cross-section measurements using 1 H and 12 C targets show the quite different radii. The cross sections of 22 C are calculated consistently for these target nuclei within a reliable microscopic framework, the Glauber theory. To describe appropriately such a reaction involving a spatially extended nucleus, the multiple scattering processes within the Glauber theory are fully taken into account, that is, the multidimensional integration in the Glauber amplitude is evaluated using a Monte Carlo technique without recourse to the optical-limit approximation. We discuss the sensitivity of the spatially extended halo tail to the total reaction cross sections. The root-mean-square matter radius obtained in this study is consistent with that extracted from the recent cross-section measurement on 12 C target. We show that the simultaneous reproduction of the two recent measured cross sections is not feasible within this framework.

show abstract

MEASUREMENTS OF INTERACTION CROSS SECTIONS TOWARDS NEUTRON-RICH Ne ISOTOPES AT RIBF

Cited by 27 publications

References 10 publications

Nuclear surface diffuseness revealed in nucleon-nucleus diffraction

Nuclear surface diffuseness revealed in nucleon-nucleus diffraction

Neutron-skin thickness determines the surface tension of a compressible nuclear droplet

Examination of the C22 radius determination with interaction cross sections

Contact Info

Product

Resources

About