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Related papers: Proton-neutron pairing in the deformed BCS approac…

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Effective interactions have been used to compute the pairing gap for nuclear and neutron matter in several schemes. In this work we analyze the impact of phase-shift equivalent interactions within the BCS theory on the $^1S_0$-channel…

Nuclear Theory · Physics 2018-05-30 Sergio Szpigel , Varese Salvador Timoteo , Enrique Ruiz Arriola

We study global features of proton-neutron (p-n) interactions and symmetry energy over a wide range of nuclei, using a schematic model interaction with four forces proposed recently. Calculations are performed by the BCS approximation in…

Nuclear Theory · Physics 2016-09-08 K. Kaneko , M. Hasegawa

The ground state and first intrinsic excited state of superheavy nuclei with Z=120 and N=160-204 are investigated using both non-relativistic Skyrme-Hartree-Fock and the axially deformed Relativistic Mean Field formalisms. We employ a…

Nuclear Theory · Physics 2012-10-04 Shakeb Ahamad , M. Bhuyan , S. K. Patra

The basic feature of the BCS theory is that pairing occurs between electrons in states with opposite momentum and opposite spins, e.g., between states (k) and (-k), in which the symbols of vectors are neglected, and later theories followed…

Superconductivity · Physics 2007-05-23 Tian De Cao

A comprehensive study of various ground-state properties of neutron-rich and neutron-deficient Mg isotopes with $A$=20-36 is performed in the framework of the self-consistent deformed Skyrme-Hartree-Fock plus BCS method. The correlation…

Nuclear Theory · Physics 2015-06-19 M. K. Gaidarov , P. Sarriguren , A. N. Antonov , E. Moya de Guerra

In the Ge-Sr mass region, isotopes with neutron number $N \leq 40$ are known to feature rapid shape changes with both nucleon number and angular momentum. To gain new insights into their structure, inelastic proton scattering experiments in…

The nuclear binding energies for 28 nuclei including several isotopic chains with masses ranging from A=64 to A=226 were evaluated using the Skyrme effective nucleon-nucleon interaction and the Extended Thomas-Fermi approximation. The…

Nuclear Theory · Physics 2009-11-07 A. Dobrowolski , K. Pomorski , J. Bartel

The coupling of single-particle motion and of vibrations in $^{11}_4$Be produces dressed neutrons which spend only a fraction of the time in pure single-particle states, and which weighting differently from the bare neutrons, lead to parity…

Nuclear Theory · Physics 2016-09-08 G. Gori , F. Barranco , E. Vigezzi , R. A. Broglia

The FRS-ESR facility at GSI provides unique conditions for precision measurements of large areas on the nuclear mass surface in a single experiment. Values for masses of 604 neutron-deficient nuclides (30<=Z<=92) were obtained with a…

We constrain the nuclear matter equation of state within the relativistic mean field model by including the isoscalar-vector and isovector-vector coupling term at a fundamental level using the Bayesian analysis. We used the nuclear…

Nuclear Theory · Physics 2025-05-06 Deepak Kumar , Pradip Kumar Sahu

While relativistic heavy-ion collisions become an alternative way of studying nucleus structure, the accurate extraction of nucleus structure could be hampered by the uncertainty of nucleon size, and the latter has attracted people's…

Nuclear Theory · Physics 2025-05-14 Hai-Cheng Wang , Song-Jie Li , Jun Xu , Zhong-Zhou Ren

The onset of octupole deformation and its impact on related spectroscopic properties is studied in even-even neutron-rich lanthanide isotopes Xe, Ba, Ce, and Nd with neutron number $86\leqslant N\leqslant 94$. Microscopic input comes from…

We suggest that the number of correlated nucleon pairs in an arbitrary nucleus can be estimated by counting the number of proton-neutron, proton-proton, and neutron-neutron pairs residing in a relative $S$ state. We present numerical…

Nuclear Theory · Physics 2012-10-24 Maarten Vanhalst , Wim Cosyn , Jan Ryckebusch

We describe the importance of charge-exchange reactions, and in particular Gamow-Teller transitions, in astrophysical processes and double beta decay, and in understanding of nuclear structure. We first provide an overview of the central…

Nuclear Theory · Physics 2020-06-16 A. Carranza M. , S. Pittel , Jorge G. Hirsch

In this study, we investigate the role of nuclear deformation on the calculated electron capture cross section (ECC) of even-even chromium (Cr) isotopes. We first determined the nuclear structure properties of these nuclei within the…

Nuclear Theory · Physics 2025-04-15 Jameel-Un Nabi , Mahmut Boyukata , Asim Ullah , Muhammad Riaz

The ground-state properties of Zr and Sn isotopes are studied within the relativistic mean field theory. Zr and Sn isotopes have received tremendous attention due to various reasons, including the predicted giant halos in the neutron-rich…

Nuclear Theory · Physics 2008-11-26 L. S. Geng , H. Toki , J. Meng

A scheme for treating the pairing of nucleons in terms of generators of Quantum Group SU_{q}(2) is presented. The possible applications to nucleon pairs in a single orbit, multishell case, pairing vibrations and superconducting nuclei are…

Nuclear Theory · Physics 2017-08-23 S. Shelly Sharma , N. K. Sharma

Recent published data on the isoscalar gap in symmetric nuclear matter using the Paris force and the corresponding BHF single particle dispersion are corrected leading to an extremely high proton-neutron gap of $\Delta \sim 8$ MeV at $\rho…

Nuclear Theory · Physics 2009-11-06 E. Garrido , P. Sarriguren , E. Moya de Guerra , U. Lombardo , P. Schuck , H. J. Schulze

We perform a systematic study of Gamow-Teller (GT) transitions in the 2p1f shell, using the nuclear shell model with two schematic Hamiltonians. The use of the shell model provides flexibility to analyze the role of different proton-neutron…

Nuclear Theory · Physics 2019-09-12 A. Carranza M. , S. Pittel , Jorge G. Hirsch
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