High Spin Properties of Atomic Nuclei

Ward, D. R.; Fallon, P.

doi:10.1007/0-306-47915-x_3

Cited by 15 publications

(23 citation statements)

References 215 publications

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“…Furthermore the gaps do not exist for all isotopes. On the neutron side, S 2n show distinguishable gaps at N =138, 172,184,198,228,238,252,258, and 274 with all the effective interactions. Apart from these, there are also other gaps which appear only for some effective interactions, e.g., N = 164 for NLSH, TW99, DD-ME1, PK1 and PK1R, and N = 216 for NLSH, TW99, PK1, and PK1R.…”

Section: Two Nucleon Separation Energiesmentioning

confidence: 97%

Relativistic continuum Hartree Bogoliubov theory for ground-state properties of exotic nuclei

Meng

Toki

Zhou

et al. 2006

Progress in Particle and Nuclear Physics

927

427

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The ground state properties including radii, density distribution and one neutron separation energy for C, N, O and F isotopes up to the neutron drip line are systematically studied by the fully self-consistent microscopic Relativistic Continuum Hartree-Bogoliubov (RCHB) theory. With the proton density distribution thus obtained, the charge-changing cross sections for C, N, O and F isotopes are calculated using the Glauber model. Good agreement with the data has been achieved. The charge changing cross sections change only slightly with the neutron number except for proton-rich nuclei. Similar trends of variations of proton radii and of charge changing cross sections for each isotope chain is observed which implies that the proton density plays * e-mail: mengj@pku.edu.cn 1 important role in determining the charge-changing cross sections.PACS numbers: 21.10. Gv, 24.10.Cn, 25.45.De Key words: Relativistic Continuum Hartree-Bogoliubov (RCHB) theory, charge-changing cross section, neutron-rich light nuclei, exotic nuclei Typeset using REVT E X 2 Recent progresses in the accelerator and detection techniques all around the world have made it possible to produce and study the nuclei far away from the stability line -so called "EXOTIC NUCLEI". Based on the measurement of interaction cross section with radioactive beams at relativistic energy, novel and entirely unexpected features has appeared: e.g., the neutron halo and skin as the rapid increase in the measured interaction cross-sections in the neutron-rich light nuclei [1,2].Systematic investigation of interaction cross sections for an isotope chain or an isotone chain can provide a good opportunity to study the density distributions over a wide range of isospin [3,4]. However the contribution from proton and neutron are coupled in the measurement of interaction cross section. To draw conclusion on the differences in proton and neutron density distributions definitely, a combined analysis of the interaction cross section and other experiment on either proton or neutron alone are necessary.The charge-changing cross section which is the cross section for all processes which result in a change of the atomic number for the projectile can provide good opportunity for this purpose. In Ref.[5], the total charge-changing cross section σ cc for the light stable and neutron-rich nuclei at relativistic energy on a carbon target were measured. We will study σ cc theoretically by using the fully self-consistent and microscopic relativistic continuum Hartree-Bogoliubov (RCHB) theory and the Glauber Model in the present letter.The RCHB theory [6][7][8], which is an extension of the relativistic mean field (RMF) [9][10][11] and the Bogoliubov transformation in the coordinate representation, can describe satisfactorily the ground state properties for nuclei both near and far from the β-stability line and from light to heavy or super heavy elements, as well as for the understanding of pseudo-spin symmetry in finite nuclei [12][13][14][15]. A remarkable success of the RCHB t...

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Section: Two Nucleon Separation Energiesmentioning

confidence: 97%

Relativistic continuum Hartree Bogoliubov theory for ground-state properties of exotic nuclei

Meng

Toki

Zhou

et al. 2006

Progress in Particle and Nuclear Physics

927

427

View full text Add to dashboard Cite

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“…At present superdeformed bands have been observed in various atomic mass regions [5]. The most notable regions are at A ∼ 130, 150, and 190 in which axis ratios are, respectively, close to 1.5:1, 2:1, and 1.7:1 [6].…”

Section: Introductionmentioning

confidence: 90%

Description of superdeformed nuclei in theA~190region by generalized deformedsuq(2)

2009

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The generalized deformed su q (2) model is applied to 79 superdeformed bands in the region A ∼ 190. The transition energies and the moments of inertia are calculated within the model and their validity is investigated by comparing them with the experimental data. Both the standard su q (2) and the generalized one fail to account for the uprising and the downturn of the dynamic moments of inertia. Both models, however, show remarkable agreement with the available experimental data at low angular frequancy (hω 0.25 MeV).

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“…High-spin states in nuclei show a rich variety of phenomena as, e.g., deformation alignment, back-bending, pairing breakdown, Coriolis anti-pairing, having thus attracted much attention in the past, for reviews see [1][2][3]. High-spin states in the doubly magic 208 Pb are special in that the large proton and neutron shell gaps inhibit deformation and pairing.…”

Section: Introductionmentioning

confidence: 99%

Self-consistent description of high-spin states in doubly magic $^{208}$Pb

Lyutorovich,

Tselyaev,

Speth

et al. 2021

Preprint

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We analyze recent data on a long series of high-spin states in 208 Pb with a self-consistent phononcoupling model for nuclear excitations based on the Skyrme functionals. The model is the renormalized time-blocking approximation (RenTBA) which takes the coherent one-particle-one-hole (1p1h) states of the random-phase approximation (RPA) as starting point and develops from that more complex configurations beyond RPA. To the best of our knowledge, this is the first investigation of high spin states in 208 Pb using self-consistent nuclear models. The interesting point here is that complex configurations are compulsory to describe the upper end of the long spin series at all. The data thus provide an ideal testing ground for phonon-coupling models as they give direct access to complex configurations. We find that standard Skyrme functionals which perform well in ground state properties and giant resonance excitations deliver at once an agreeable description of these high spin states.

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High Spin Properties of Atomic Nuclei

Cited by 15 publications

References 215 publications

Relativistic continuum Hartree Bogoliubov theory for ground-state properties of exotic nuclei

Relativistic continuum Hartree Bogoliubov theory for ground-state properties of exotic nuclei

Description of superdeformed nuclei in theA~190region by generalized deformedsuq(2)

Self-consistent description of high-spin states in doubly magic $^{208}$Pb

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