Surface properties of neutron-rich exotic nuclei within relativistic mean field formalisms

Bhuyan, M.; Carlson, B. V.; Patra, S. K.; Zhou, Shan‐Gui

doi:10.1103/physrevc.97.024322

Cited by 53 publications

(139 citation statements)

References 124 publications

Supporting

Mentioning

136

Contrasting

Order By: Relevance

“…(6), which is able to produce reasonable agreement with the experimental data [19]. Furthermore, these non-linear terms in the σ− field plays an important role in the nuclear matter study and the detailed nuclear structure inherited by the density while calculating the proton and cluster decay properties (mostly a surface phenomenon) [61,62].…”

Section: A Nucleus-nucleus Optical Potentialmentioning

confidence: 72%

Fusion cross section for Ni-based reactions within the relativistic mean-field formalism

Bhuyan

Kumar

2018

Phys. Rev. C

Self Cite

View full text Add to dashboard Cite

In this theoretical study, we establish an interrelationship between the nucleon-nucleon interaction potential and the nuclear fusion reaction cross-sections at low energies. The axially deformed self-consistent relativistic mean field with non-linear NL3 * force is used to calculate the density distribution of the projectile and target nuclei for fusion. The Wong formula is used to estimate the fusion cross-section and barrier distribution from the nucleus-nucleus optical potential for Nibased systems, which are known for fusion hindrance phenomena. The results of the application of the so obtained nucleus-nucleus optical potential for the fusion cross-section from the recently developed relativistic N N −interaction (R3Y) are compared with the well-known, phenomenological M3Y effective N N potential. We found a relatively good results from R3Y interactions below the barrier energies as compare to the M3Y potential concerning the experimental data. We also observe the density dependence on the nuclear interaction potential in terms of nucleon-nucleon optical potentials.

show abstract

Section: A Nucleus-nucleus Optical Potentialmentioning

confidence: 72%

Fusion cross section for Ni-based reactions within the relativistic mean-field formalism

Bhuyan

Kumar

2018

Phys. Rev. C

Self Cite

View full text Add to dashboard Cite

show abstract

“…Appreciable experimental progress in producing and analyzing exotic nuclei [1,2] has brought renaissance of nuclear structure models. In recent years [3,4,5,6], The production of more and more new isotopes has revived the interest in nuclear structure models. In nuclear physics, understanding the structure of the atomic nucleus is one of the key challenges.…”

Section: Introductionmentioning

confidence: 99%

A study of charge radii and neutron skin thickness near nuclear drip lines

Thakur

Dhiman

2019

Nuclear Physics A

View full text Add to dashboard Cite

We studied the charge radius, rms radius and neutron skin thickness ∆r np in even-even isotopes of Si, S, Ar and Ca and isotones of N =20, 28, 50 and 82. The ∆r np in doubly-magic 48 Ca, 68 Ni, 120,132 Sn and 208 Pb nuclei has also been calculated. Theoretical calculations are done with the Hartree-Fock-Bogoliubov theory with the effective Skyrme interactions. Calculated theoretical estimates are in good agreement with the recently available experimental data. The charge radii for Si, S, Ar and Ca isotopes is observed to be minimum at neutron number N =14. The theoretically computed results with UNEDF0 model parameterization of functional are reasonably reproducing the experimental data for ∆r np in 48 Ca, 68 Ni and 120,132 Sn. The energy density functional of UNEDF1 model provides much improved result of ∆r np for 208 Pb.

show abstract

“…A typical relativistic Lagrangian density (after several modifications of the original Walecka Lagrangian to take care of various limitations) for a nucleon–meson many body system has the form (Bhuyan et al ; Boguta & Bodmer ; Carlson & Hirata ; Lalazissis et al ; Nikšić et al )

\begin{matrix} normalℒ & = \overset{ψ}{true} ({}, i γ^{μ} \partial_{μ} - M) ψ + \frac{1}{2} \partial^{μ} σ \partial_{μ} σ \\ - \frac{1}{2} m_{σ}^{2} σ^{2} - \frac{1}{3} g_{2} σ^{3} - \frac{1}{4} g_{3} σ^{4} - g_{s} \overset{ψ}{true} ψ σ \\ - \frac{1}{4} Ω^{μ ν} Ω_{μ ν} + \frac{1}{2} m_{w}^{2} ω^{μ} ω_{μ} - g_{w} \overset{ψ}{true} γ^{μ} {ψ ω}_{μ} \\ - \frac{1}{4} {\overset{true\to}{B}}^{μ ν} . {\overset{true\to}{B}}_{μ ν} + \frac{1}{2} m_{ρ}^{2} {\overset{true\to}{ρ}}^{μ} . {\overset{true\to}{ρ}}_{μ} - g_{ρ} \overset{ψ}{true} γ^{μ} \overset{τ}{true} ψ \cdot {\overset{true\to}{ρ}}^{μ} \\ - \frac{1}{4} F^{μ ν} F_{μ ν} - e \overset{ψ}{true} γ^{μ} \frac{(1 - τ_{3})}{2} ψ A_{μ}, \end{matrix}

with vector field tensors

\begin{array}{l} F^{μ ν} = \partial_{μ} A_{ν} - \partial_{ν} A_{μ} \\ Ω_{...} \end{array}

…”

Section: Relativistic Mean‐field Theorymentioning

confidence: 99%

“…To describe the nuclear bulk properties of open‐shell nuclei, one has to consider the pairing correlations in their ground as well as excited states. We have employed the constant‐gap BCS approach for the NL3* parameter set (Bhuyan et al ).…”

Section: Relativistic Mean‐field Theorymentioning

confidence: 99%

“…Exploring the nuclear surface properties of infinite and semi‐infinite nuclear matter is simple as compared to a finite nuclear system due to the absence of the many complexities arising from the shell/subshell, spin–orbit interaction, the charge (i.e., Coulomb), filling of the energy levels (i.e., occupation probability), and finite‐size effects. Further, the connection of isospin asymmetry to the symmetry energy has an impact on many physical studies such as the ground‐state structure of exotic nuclei, determination of the neutron skin, dynamics of heavy‐ion reactions, giant collective excitations, dipole polarizability, mirror charge radii, and related phenomena at high density (Bhuyan et al ). In this regard, we study the relation between various bulk physical quantities of finite nuclei and the density properties of infinite nuclear matter in a few cases.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Infinite nuclear matter characteristics of the finite nuclei within relativistic mean‐field formalism

2019

Self Cite

View full text Add to dashboard Cite

We investigate the mass dependence of the nuclear structure and the effective symmetry energy for the Kr and Ba nuclei. The axially deformed self-consistent relativistic mean field with the nonlinear NL3* parameter set is used in the analysis. The coherent density fluctuation model is adopted to formulate the nuclear matter observables such as symmetry energy, neutron pressure, and symmetry energy curvature of finite nuclei as a function of the radius. We found a notable signature of the shell/subshell closure at N = 50 and 82 for the isotopic chains of Kr and Ba nuclei, respectively.KEYWORDS coherent density fluctuation model -neutron separation energy -relativistic mean field -shell closure -symmetry energy 1

show abstract

Surface properties of neutron-rich exotic nuclei within relativistic mean field formalisms

Cited by 53 publications

References 124 publications

Fusion cross section for Ni-based reactions within the relativistic mean-field formalism

Fusion cross section for Ni-based reactions within the relativistic mean-field formalism

A study of charge radii and neutron skin thickness near nuclear drip lines

Infinite nuclear matter characteristics of the finite nuclei within relativistic mean‐field formalism

Contact Info

Product

Resources

About