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The prompt fission neutron spectra for neutron-induced fission of 233U for low energy neutrons (below 6 MeV) are calculated using the nuclear evaporation theory with a semi-empirical method, in which the partition of the total excitation…

核理论 · 物理学 2015-06-16 Yong-Jing Chen , Jia Min , Ting-Jin Liu , Neng-Chuan Shu

The folding formalism for the nucleon-nucleus optical potential and inelastic form factor is applied to study elastic and inelastic proton scattering on 30-40S isotopes. A recently developed realistic density dependent M3Y interaction, well…

核理论 · 物理学 2009-11-07 Dao T. Khoa , E. Khan , G. Colo , Nguyen Van Giai

Large basis untruncated shell model calculations have been done for the A=138 neutron -rich nuclei in the pi(gdsh) X nu(hfpi) valence space above the 132Sn core. Two (1+2) -body nuclear Hamiltonians, viz., realistic CWG and empirical SMPN…

核理论 · 物理学 2008-11-26 S. Sarkar , M. Saha Sarkar

Nuclear structure theory can provide nuclear astrophysics and nuclear technologies with bound state properties and transition rates. When describing nuclear reactions, the list can be extended to include statistical properties such as…

核理论 · 物理学 2026-04-14 Oliver Gorton , Konstantinos Kravvaris

Lifetime values for alpha decay in even-even nuclei with $Z=84-98$ and $N=128-152$ have been calculated in the superasymmetric fission model. The interaction between the alpha particle and the daughter nucleus has been formed in the double…

核理论 · 物理学 2008-11-26 Madhubrata Bhattacharya , Subinit Roy , G. Gangopadhyay

We calculate the low-lying spectra of the zirconium isotopes Z=40 with neutron numbers from N=52 to N=60 using the 1p1/20g9/2 proton and 2s1d0g7/20h11/2 neutron sub-shells to define the model space. Effective proton-proton, neutron--neutron…

核理论 · 物理学 2009-11-06 A. Holt , T. Engeland , M. Hjorth-Jensen , E. Osnes

The self-consistent Green's functions method is employed to study the spectroscopic factors of quasiparticle states around 16O, 28O, 40Ca and 60Ca. The Faddeev random phase approximation (FRPA) is used to account for the coupling of…

核理论 · 物理学 2014-11-18 C. Barbieri , W. H. Dickhoff

We use the relativistic mean field (RMF) model to conduct a thorough analysis of the ground-state properties of $^{67\text{--}80}$Ge nuclei. Binding energies and neutron skin thicknesses are computed for a total of 14 neutron-rich Ge…

核理论 · 物理学 2025-03-18 Jameel-Un Nabi , Wajeeha Khalid , Abdul Kabir , Syeda Anmol Rida

We study the sensitivity of neutral-current neutrino-nucleus scattering to the strange-quark content of the axial-vector form factor of the nucleon. A model-independent formalism for this reaction is developed in terms of eight nuclear…

核理论 · 物理学 2008-11-26 B. I. S. van der Ventel , J. Piekarewicz

This paper compiles the model parameters and zero-temperature properties of an extensive collection of published theoretical nuclear interactions, including 255 non-relativistic (Skyrme-like) forces, 270 relativistic mean field (RMF) and…

核理论 · 物理学 2024-05-07 Boyang Sun , Saketh Bhattiprolu , James M. Lattimer

A systematic shell model description of the experimental Gamow-Teller transition strength distributions in $^{42}$Ti, $^{46}$Cr, $^{50}$Fe and $^{54}$Ni is presented. These transitions have been recently measured via $\beta$ decay of these…

核理论 · 物理学 2016-06-29 Vikas Kumar , P. C. Srivastava

An improved description of single neutron stripping from $^{34,36,46}$Ar beams at 33 MeV/nucleon by a hydrogen target is presented and the dependence on the neutron-proton asymmetry of the spectroscopic factors is further investigated. A…

核理论 · 物理学 2011-10-25 F. M. Nunes , A. Deltuva , June Hong

We calculate the low-lying spectra of heavy tin isotopes from A=120 to A=130 using the 2s1d0g_{7/2}0h_{11/2} shell to define the model space. An effective interaction has been derived using 132Sn as closed core employing perturbative…

核理论 · 物理学 2009-10-30 A. Holt , T. Engeland , M. Hjorth-Jensen , E. Osnes

We present the results of a search for optical model potentials for use in the description of elastic scattering and transfer reactions involving stable and radioactive p-shell nuclei. This was done in connection with our program to use…

A shell model study of the low energy region of the spectra in Ge isotopes for $38\leq N\leq 50$ is presented, analyzing the excitation energies, quadrupole moments, $B(E2)$ values and occupation numbers. The theoretical results have been…

核理论 · 物理学 2012-09-27 J. G. Hirsch , P. C. Srivastava

In the framework of the neutrino oscillation scenario, we discuss the influence of the uncertainty on the efficiency of the neutrino emitting reactions 1H(p,e+ \nu_e)2H and 7Be(p,\gamma)8B for the neutrino oscillation parameters. We…

天体物理学 · 物理学 2007-05-23 H. Schlattl , A. Bonanno , L. Paterno

Nuclear weak interaction rates for fp-shell nuclei in stellar matter and the associated energy losses are calculated using a modified form of proton-neutron quasiparticle RPA model with separable Gamow-Teller forces. The stellar weak rates…

核理论 · 物理学 2007-05-23 J. -U Nabi , H. V. Klapdor-Kleingrothaus

We present a model for electron- and neutrino-scattering off nucleons and nuclei focussing on the quasielastic and resonance region. The lepton-nucleon reaction is described within a relativistic formalism that includes, besides…

核理论 · 物理学 2009-04-03 T. Leitner , O. Buss , L. Alvarez-Ruso , U. Mosel

Axial-vector interactions of neutrinos and axions with a medium are based on structure functions which cannot be calculated in simple perturbative terms for nuclear densities. We use the SN~1987A neutrino signal duration to estimate the…

高能物理 - 唯象学 · 物理学 2009-10-28 Wolfgang Keil , H. -Thomas Janka , Georg Raffelt

Nonuniform neutron-rich matter present in both core-collapse supernovae and neutron-star crusts is described in terms of a semiclassical model that reproduces nuclear-matter properties and includes long-range Coulomb interactions. The…

天体物理学 · 物理学 2009-11-10 C. J. Horowitz , M. A. Perez-Garcia , J. Carriere , D. K. Berry , J. Piekarewicz