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Related papers: Fusion at near-barrier energies within quantum dif…

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The quantum diffusion approach is extended to low energy fusion (capture) reactions of light- and medium-mass nuclei. The dependence of the friction parameter on bombarding energy is taken into account. A simple analytic expression is…

Nuclear Theory · Physics 2020-07-15 V. V. Sargsyan , G. G. Adamian , N. V. Antonenko , H. Lenske

The shell correction is proposed in the improved isospin dependent quantum molecular dynamics (ImIQMD) model, which plays an important role in heavy-ion fusion reactions near Coulomb barrier. By using the ImIQMD model, the static and…

Nuclear Theory · Physics 2008-11-26 Zhao-Qing Feng , Gen-Ming Jin , Feng-Shou Zhang

The heavy-ion fusion reactions induced by neutron-rich nuclei are investigated with the improved quantum molecular dynamics (ImQMD) model. With a subtle consideration of the neutron skin thickness of nuclei and the symmetry potential, the…

Nuclear Theory · Physics 2015-06-19 Ning Wang , Li Ou , Yingxun Zhang , Zhuxia Li

We report the first measurement of the fusion excitation functions for $^{39,47}$K + $^{28}$Si at near-barrier energies. Evaporation residues resulting from the fusion process were identified by direct measurement of their energy and…

A model combining self-consistent mean-field and shell-model techniques is used to study the competition between particle like and proton-neutron pairing correlations in fp-shell even-even self-conjugate nuclei. Results obtained using…

Nuclear Theory · Physics 2015-06-23 D. Gambacurta , D. Lacroix

$\textit{Background}$: Nuclear fusion has been shown to be a perfect probe to study the different nuclear shapes. However, the possibility of testing octupole deformation of a nucleus with this tool has not been fully explored yet. The…

Nuclear Theory · Physics 2015-11-06 Raj Kumar , J. A. Lay , A. Vitturi

Nuclear shape and orientation degrees of freedom are incorporated into the calculation of the double-folding nuclear potential within the relativistic mean-field (RMF) formalism. The quadrupole deformations ($\beta_2$), nuclear densities…

Nuclear Theory · Physics 2024-08-30 Shilpa Rana , M. Bhuyan , Raj Kumar , B. V. Carlson

We study continuum percolation in nuclear collisions for the realistic case in which the nuclear matter distribution is not uniform over the collision volume, and show that the percolation threshold is increased compared to the standard,…

High Energy Physics - Phenomenology · Physics 2009-10-31 A. Rodrigues , R. Ugoccioni , J. Dias de Deus

The double folding (DF) approach is one of the widely used methods for finding nucleus-nucleus interaction potential. In the present work, the influence of the nuclear matter density on the DF potential and on the Coulomb barrier parameters…

The role of the breakup process and one neutron stripping on the near barrier fusion are investigated for the weakly bound projectile $^{9}$Be on $^{28}$Si, $^{89}$Y, $^{124}$Sn, $^{144}$Sm and $^{208}$Pb targets. Continuum-discretized…

Nuclear Experiment · Physics 2015-06-18 V. Jha , V. V. Parkar , S. Kailas

We suggest a ``ping-pong'' mechanism of enhancement for fusion reactions between a low energy external deuteron beam and the deuterons in a condensed matter or molecular target. The mechanism is based on the possibility of acceleration of a…

Nuclear Theory · Physics 2008-11-26 B. L. Altshuler , V. V. Flambaum , M. Yu. Kuchiev , V. G. Zelevinsky

Based on the relativistic calculations of the nuclear masses in the transfermium region from No $(Z=102)$ to Ds $(Z=110)$ by the deformed relativistic Hartree-Bogoliubov theory in continuum, the possible existence of the bound nuclei beyond…

Nuclear Theory · Physics 2021-10-27 Xiao-Tao He , Chen Wang , Kai-Yuan Zhang , Cai-Wan Shen

The effect of breakup is investigated for the medium weight $^{6}$Li+$^{59}$Co system in the vicinity of the Coulomb barrier. The strong coupling of breakup/transfer channels to fusion is discussed within a comparison of predictions of the…

Nuclear Theory · Physics 2009-11-11 C. Beck , A. Sanchez i Zafra , A. Diaz-Torres , I. J. Thompson , N. Keeley , F. A. Souza

The total nuclear cross-section Qtot(E) resulting from the interaction of protons with nuclei is decomposed in 3 different contributions: 1. elastic scatter at the complete nucleus, which adopts a part of the proton kinetic energy; 2.…

Medical Physics · Physics 2016-05-10 W. Ulmer

The electron-screening acceleration of laboratory fusion reactions at astrophysical energies is an unsolved problem of great importance to astrophysics. That effect is modeled here by considering the fusion of hydrogen-like atoms whose…

Nuclear Theory · Physics 2009-11-06 Theodore E. Liolios

Kinetics of phase separation transition in boson-fermion cold atom mixtures is investigated. We identify the parameters at which the transition is governed by quantum nucleation mechanism, responsible for the formation of critical nuclei of…

Mesoscale and Nanoscale Physics · Physics 2008-11-24 Dmitry Solenov , Dmitry Mozyrsky

Upon hydrogen bond formation, electronic charge density is transferred between the donor and acceptor, impacting processes ranging from hydration to spectroscopy. Here we use ab initio path integral simulations to elucidate the role of…

Chemical Physics · Physics 2018-11-28 Christoph Schran , Ondrej Marsalek , Thomas E. Markland

We discuss the fission barrier height of neutron-rich nuclei in a r-process site at highly excited state, which is resulted from the beta-decay or the neutron-capture processes. We particularly investigate the sensitivity of the fission…

Nuclear Theory · Physics 2008-11-26 Futoshi Minato , Kouichi Hagino

The change of the probability of proton emission in nuclear photoeffect due to an intense coherent (laser) field is discussed near the threshold, where the hindering effect of the Coulomb field of the remainder nucleus is essential. The…

Nuclear Theory · Physics 2013-06-26 Péter Kálmán , Dániel Péter Kis , Tamás Keszthelyi

A theoretical analysis using an impact-parameter description of the collisions of deuterons with nuclei is carried out in the high-energy diffraction approximation. It is used to obtain the intensities and integrated cross sections for…

Nuclear Theory · Physics 2020-09-29 V. Franco , R. J. Glauber