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Ternary fission yields in the reaction 241Pu(nth,f) are calculated using a new model which assumes a nucleation-time moderated chemical equilibrium in the low density matter which constitutes the neck region of the scissioning system. The…

Nuclear Experiment · Physics 2015-06-19 S. Wuenschel , H. Zheng , K. Hagel , B. Meyer , M. Barbui , E. J. Kim , G. Roepke , J. B. Natowitz

Complete fusion excitation functions of reactions involving breakup are studied by using the empirical coupled-channel (ECC) model with breakup effects considered. An exponential function with two parameters is adopted to describe the…

Nuclear Theory · Physics 2016-01-25 Bing Wang , Wei-Juan Zhao , Alexis Diaz-Torres , En-Guang Zhao , Shan-Gui Zhou

To determine the energy dependence of fusion cross sections at extremely low energies is crucial for various astrophysical processes. In the previous study by Jiang et al. [Phys. Rev. C75, 015803 (2007)], it was concluded that fusion cross…

Nuclear Theory · Physics 2025-12-23 Kotaro Uzawa , Kouichi Hagino

To gain insight into the dynamics of the CN + C2H6 gas-phase reaction, quasi-classical trajectory (QCT) calculations were performed on a full-dimensional analytical potential energy surface. This reaction presents very high exothermicity,…

Chemical Physics · Physics 2024-05-06 Joaquin Espinosa-Garcia , Cipriano Rangel , Jose C. Corchado

The STAR Collaboration reports measurements of the collision energy dependence of hypertriton (${}^{3}_{\Lambda}$H) transverse momentum spectra and $p_{\rm T}$-integrated yields at mid-rapidity ($|y|<$0.5) in Au+Au collisions at 11…

Nuclear Experiment · Physics 2026-04-21 The STAR Collaboration

A systematic study of fission-barrier dependence on excitation energy has been performed using the self-consistent finite-temperature Hartree-Fock+BCS (FT-HF+BCS) formalism with the SkM* Skyrme energy density functional. The calculations…

Nuclear Theory · Physics 2009-08-18 J. A. Sheikh , W. Nazarewicz , J. C. Pei

Existing data on near-barrier fusion excitation functions of medium and heavy nucleus-nucleus systems have been analyzed using a simple diffused barrier formula derived assuming the Gaussian shape of the barrier height distributions. Fusion…

Nuclear Theory · Physics 2014-12-30 Debasis Atta , D. N. Basu

The isotope yields of fragments, produced in the decay of the quasiprojectile in Au+Au peripheral collisions at 35 MeV/nucleon and those coming from the disassembly of the unique source formed in Xe+Cu central reactions at 30 MeV/nucleon,…

We present a complete systematically theoretical study of multifragmentation for asymmetric colliding nuclei for heavy-ion reactions in the energy range between 50 MeV/nucleon and 600 MeV/nucleon by using soft and hard equations of state.…

Nuclear Theory · Physics 2010-11-19 Varinderjit Kaur , Suneel Kumar

We use an improved version of the semiclassical method described in Refs. [1,2,3] to evaluate fusion cross sections in collisions of weakly bound nuclei. This version takes into account the static effects of the low breakup threshold, uses…

Nuclear Theory · Physics 2018-10-10 G. D. Kolinger , L. F. Canto , R. Donangelo , S. R. Souza

Recent advances obtained in the field of near and sub-barrier heavy-ion fusion reactions are reviewed. Emphasis is given to the results obtained in the last decade, and focus will be mainly on the experimental work performed concerning the…

Nuclear Experiment · Physics 2017-09-13 Giovanna Montagnoli , Alberto M. Stefanini

Measurement of the fusion cross-section for neutron-rich light nuclei is crucial in ascertaining if fusion of these nuclei occurs in the outer crust of a neutron star. We have therefore measured the fusion excitation function at…

Assuming a binary reaction mechanism, the yield of isotopes near the heaviest $N=Z$ neutron-deficit nucleus $^{100}$Sn is studied with a microscopic transport model. The large influence of nuclear shell structure and isotope composition of…

Nuclear Theory · Physics 2008-11-26 N. V. Antonenko , A. K. Nasirov , T. M. Shneidman , V. D. Toneev

Measurement of the fusion cross-section for neutron-rich light nuclei is crucial in ascertaining if fusion of these nuclei occurs in the outer crust of a neutron star. The fusion excitation function at near-barrier energies for the $^{19}$O…

We show that the quasifission paths predicted by the one-body dissipation dynamics, in the slowest phase of a binary reaction, follow a quasistatic path, which represents a sequence of states of thermal equilibrium at a fixed value of the…

Nuclear Theory · Physics 2008-11-26 V. P. Aleshin , M. Centelles , X. Viñas , N. G. Nicolis

Fusion dynamics and the onset of quasi-fission in reactions, leading to production of superheavy nuclei are investigated using the constrained molecular dynamics model. Constraints on the parameters of the nuclear equation of state are…

Nuclear Theory · Physics 2020-01-08 J. Klimo , M. Veselsky , G. A. Souliotis , A. Bonasera

The induced-activity investigations in off-line analysis performed in different experiments, concerning pre-actinide and actinide nuclei, are here presented and discussed. Generalized expressions for the determination of independent…

Nuclear Experiment · Physics 2015-09-02 G. S. Karapetyan

We report on a comprehensive systematics of fusion-evaporation and/or fusion-fission cross sections for a very large variety of systems over an energy range 4-155 A.MeV. Scaled by the reaction cross sections, fusion cross sections do not…

Nuclear Experiment · Physics 2015-06-11 Ph. Eudes , Z. Basrak , F. Sébille , V. de la Mota , G. Royer , M. Zorić

A model of competition between complete fusion and quasifission channels in fusion of two massive nuclei is extended to include the influence of dissipative effects on the dynamics of nuclear fusion. By using the multidimensional…

Nuclear Theory · Physics 2009-10-30 G. G. Adamian , N. V. Antonenko , W. Scheid , V. V. Volkov

A study of medium-mass heavy-ion reactions leading to two fragments in the exit channel from barrier to 18A MeV is proposed. A special focus is made on fission and quasi-fission for events with two fragments ($Z\geq10$) in the exit channel…

Nuclear Experiment · Physics 2022-05-13 L. Manduci , O. Lopez , D. Durand , R. Bougault , E. Vient , M. Pâlog , B. Borderie , I. Lombardo , G. Verde
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