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The transition from cluster structures to extremely elongated ellipsoidal shapes and nuclear molecules in light $A=12-50$ $(N \sim Z)$ nuclei has been studied within the framework of covariant density functional theory. Nodal structure of…

Nuclear Theory · Physics 2018-11-29 A. V. Afanasjev

The method used to investigate the cluster structures of excited states for the light nuclei He, Li and Be in three-body photodisintegration processes is described. As an application we present the experimental program on the Yerevan…

Nuclear Experiment · Physics 2011-06-09 N. Demekhina , H. Hakobyan , J. Manukyan , A. Sirunyan , H. Vartapetian

The Faddeev-Yakubovski equations are solved in configuration space for low energy four-nucleon continuum states. Coulomb interaction was included into the formalism permitting an exact description of the scattering states in p+$^{3}$He and…

Nuclear Theory · Physics 2007-05-23 R. Lazauskas , J. Carbonell

By using the method of hyperspherical functions within the appropriate for this method $K_{\min}$ approximation, the simple three-cluster model for description of the ground state and the continuous spectrum states of \6He is developed. It…

Nuclear Theory · Physics 2007-05-23 G. F. Filippov , I. Yu. Rybkin , S. V. Korennov

Three- and four-nucleon photodisintegration processes are quite efficiently treated by means of effective two-body integral equations in momentum space. We recall some aspects of their derivation, present previous and most recent results…

Nuclear Theory · Physics 2009-10-30 W. Sandhas , W. Schadow , G. Ellerkmann , L. L. Howell , S. A. Sofianos

Within the modified potential cluster model with forbidden states effectively taking into account the Pauli Exclusion Principle the astrophysical S-factor of radiative p14N capture to 15O ground state has been calculated. The calculation…

Nuclear Theory · Physics 2020-07-03 S. B. Dubovichenko , N. A. Burkova , A. V. Dzhazairov-Kakhramanov

In this paper, we present a theoretical investigation of photoabsorption spectrum of the newly synthesized hydrogenated cluster of aluminium, Al4H6. The calculations are performed within the wave-function-based semi-empirical method…

Atomic and Molecular Clusters · Physics 2010-01-10 Sridhar Sahu , Alok Shukla

The cluster dynamics of radioactive nuclei decaying to neighbouring daughter nuclei of the double magic $^{132}$Sn and $^{208}$Pb is investigated using the relativistic mean-field (RMF) approach with NL3$^*$ parameter set within the…

Nuclear Theory · Physics 2023-07-06 Joshua T. Majekodunmi , M. Bhuyan , Raj Kumar

Faddeev calculations have been performed for nucleon-deuteron photodisintegration of 3He(3H) and proton-deuteron radiative capture. The bulk of the results is based on the AV18 nucleon-nucleon force and the Urbana IX three-nucleon force…

Nuclear Theory · Physics 2009-11-07 R. Skibinski , J. Golak , H. Kamada , H. Witala , W. Glockle , A. Nogga

We describe bound states, resonances and elastic scattering of light ions using a $\delta$-shell potential. Focusing on low-energy data such as energies of bound states and resonances, charge radii, asymptotic normalization coefficients,…

Nuclear Theory · Physics 2019-11-11 Benjamin K. Luna , T. Papenbrock

Inclusive 3He(e,e') and exclusive 3He(e,e'n) processes with polarized electrons and 3He have been theoretically analyzed and values for the magnetic and electric neutron form factors have been extracted. In both cases the form factor values…

Nuclear Theory · Physics 2009-11-06 J. Golak , G. Ziemer , H. Kamada , H. Witala , W. Gloeckle

We consider the interaction of electromagnetic radiation of arbitrary polarization with multi-level atoms in a self-consistent manner, taking into account both spatial and temporal dependencies of local fields. This is done by numerically…

Mesoscale and Nanoscale Physics · Physics 2015-03-19 Maxim Sukharev , Abraham Nitzan

We report on the experimental observation of interatomic Coulombic decay (ICD) in pure $^4$He nanoclusters of mean sizes between $N \approx$ 5000 and 30000 and the subsequent scattering of energetic He$^+$ fragments inside the neutral…

Our current understanding of the structure of nuclei with up to A=8, including energy spectra, electromagnetic form factors, and weak transitions, is reviewed within the context of a realistic approach to nuclear dynamics based on two- and…

Nuclear Theory · Physics 2017-08-23 R. Schiavilla

Recent microscopic and phenomenological calculations of giant dipole resonances for A <= 56 nuclei are presented. The derived photodisintegration cross sections are exhaustively compared to the photonuclear data available to date. An…

A semi-phenomenological model of a many-particle system of 4He atoms is proposed, in which a helium atom is considered as a complex consisting of a nucleus and a bound pair of electrons in the singlet state. At zero temperature, there are…

Statistical Mechanics · Physics 2021-09-15 Yu. M. Poluektov

Mercury (Hg) and superheavy element copernicium (Cn) are investigated using equation-of-motion relativistic coupled-cluster (EOM-RCC) and configuration interaction plus many-body perturbation theory (CI+MBPT) methods. Key atomic properties…

Atomic Physics · Physics 2025-07-25 Hongxu Liu , Jize Han , Yanmei Yu , Yanfeng Ge , Yong Liu , Zhiguo Huang

Effects of final state interaction on asymmetries in inclusive scattering of polarized electrons on polarized 3He are investigated using consistent 3He bound state wave function and 3N continuum scattering states. Significant effects are…

Nuclear Theory · Physics 2008-11-26 S. Ishikawa , J. Golak , H. Witala , H. Kamada , W. Gloeckle

We develop a new method to describe electromagnetic observables of open-shell nuclei with two nucleons outside a closed shell. This approach combines the equation-of-motion coupled-cluster method for such systems and the Lorentz integral…

Nuclear Theory · Physics 2024-10-14 Francesca Bonaiti , Sonia Bacca , Gaute Hagen , Gustav R. Jansen

Since the discovery of molecular resonances in $^{12}$C+$^{12}$C in the early sixties a great deal of research work has been undertaken to study alpha-clustering. Our knowledge on physics of nuclear molecules has increased considerably and…

Nuclear Experiment · Physics 2019-09-16 C. Beck
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