Microscopic dynamical description of multinucleon transfer in <sup>40</sup>Ar induced peripheral collisions at 15 MeV/nucleon

Palli, K.; Souliotis, G. A.; Depastas, T.; Dimitropoulos, Ioannis; Fasoula, Olga; Koulouris, S.; Veselský, M.; Yennello, S. J.; Bonasera, A.

doi:10.1051/epjconf/202125207002

Cited by 16 publications

(6 citation statements)

References 17 publications

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“…The Constrained Molecular Dynamics (CoMD) model [18] has been used recently to describe the dynamics of low-energy phenomena. Studies incorporating reactions near the Fermi energy [19][20][21][22] and the fission of heavy nuclei [23,24], have been performed. The CoMD model is based on a two-body effective interaction with Skyrme potential characteristics which are written as:…”

Section: Theoretical Frameworkmentioning

confidence: 99%

Investigating Possible Existence of Hyper-Heavy Nuclei in Neutron Star Environment

Veselsky,

Petousis,

Moustakidis

et al. 2022

Preprint

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The synthesis of hyper-heavy elements is investigated under conditions simulating neutron star environment. The Constrained Molecular Dynamics (CoMD) approach is used to simulate low energy collisions of extremely n-rich nuclei. A new type of the fusion barrier due to a "neutron wind" is observed when the effect of neutron star environment (screening of Coulomb interaction) is introduced implicitly. When introducing also a background of surrounding nuclei, the nuclear fusion becomes possible down to temperatures of 10 8 K and synthesis of extremely heavy and n-rich nuclei appears feasible. A possible existence of hyper-heavy nuclei in a neutron star environment could provide a mechanism of extra coherent neutrino scattering or an additional mechanism, resulting in X-ray burst or a gravitational wave signal and, thus, becoming another crucial process adding new information to the suggested models on neutron star evolution.

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Section: Theoretical Frameworkmentioning

confidence: 99%

Investigating Possible Existence of Hyper-Heavy Nuclei in Neutron Star Environment

Veselsky,

Petousis,

Moustakidis

et al. 2022

Preprint

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“…Such nucleon transfer mechanisms mainly take place in peripheral nucleon-exchange reactions at beam energies from the Coulomb barrier to the Fermi energy (~15-20 MeV/nucleon) [11,12]. The main interest of our research group is the study of heavy-ion reactions well above the Coulomb barrier, but below the Fermi Energy in order to access nuclides with high neutron excess [13][14][15][16][17][18]. However, for the efficient collection of these fragments, the use of a large acceptance spectrometer is essential.…”

Section: Introductionmentioning

confidence: 99%

Recent Progress in the Study of the Reaction 70Zn (15 MeV/nucleon) + 64Ni with the MAGNEX Spectrometer

et al. 2023

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The present paper is focused on our recent efforts to study the production and identification of neutron-rich medium-mass rare isotopes from peripheral reactions at beam energies around and below the Fermi energy. We obtained high-quality experimental data from a recent experiment with the MAGNEX spectrometer at the INFN-LNS in Catania, Italy. The main aim of this experiment was to check the feasibility of ejectile identification in this energy regime with the use of a large acceptance magnetic spectrometer. Our developed technique for particle identification depends mainly on a reconstruction of both the atomic number Z and the ionic charge q of the ions, followed by the identification of the mass. Our method was successfully applied to identify neutron-rich ejectiles from multinucleon transfer from the reaction of 70Zn (15 MeV/nucleon) + 64Ni. Preliminary results indicate that the extracted experimental distributions, along with comparisons with the theoretical models could help us to shed light to the complex reaction mechanism of multinucleon transfer in this energy regime.

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“…Apart from fragmentation [8] and spallation [9], multinucleon transfer reactions offer the means to produce these nuclei. Our group specifically focuses on the study of these reactions in the Fermi energy regime MeV/nucleon) [10][11][12][13][14][15][16][17][18]. In this work we present the study of a reaction with a 86 Kr beam at 15 MeV/nucleon with a target of 64 Ni.…”

Section: Introductionmentioning

confidence: 99%

Momentum Distribution Studies of Projectile Fragments from Peripheral Collisions Below the Fermi Energy

Fasoula,

Souliotis,

Koulouris

et al. 2023

HNPS Adv Nucl Phys

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This paper presents our recent studies of multinucleon transfer in peripheral collisions in reactions below the Fermi regime. Our current focus is the study of the mass, angular and momentum distributions of the projectile-like fragments from the reaction of an 86Kr beam at 15 MeV/nucleon with a target of 64Ni. Experimental data from our previous work with the MARS spectrometer at the Cyclotron Institute of Texas A&M University were compared with model calculations. The dynamical stage of the reaction is described with either the Deep-Inelastic Transfer Model (DIT) or with the microscopic Constrained Molecular Dynamics model (CoMD). The de-excitation of the hot projectile-like fragments is performed with the GEMINI model. The momentum distributions are characterized by a quasi-elastic peak and a deep-inelastic peak. Two-body kinematics was employed to extract the total excitation energies of these regions. Through the thorough study of peripheral reactions in the Fermi energy regime we expect to gain valuable information that could lead to the understanding of how the rare isotopes in regions such as the r-process path and the neutron drip line are formed and the reaction mechanism(s) that take place.

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Microscopic dynamical description of multinucleon transfer in ⁴⁰Ar induced peripheral collisions at 15 MeV/nucleon

Cited by 16 publications

References 17 publications

Investigating Possible Existence of Hyper-Heavy Nuclei in Neutron Star Environment

Investigating Possible Existence of Hyper-Heavy Nuclei in Neutron Star Environment

Recent Progress in the Study of the Reaction 70Zn (15 MeV/nucleon) + 64Ni with the MAGNEX Spectrometer

Momentum Distribution Studies of Projectile Fragments from Peripheral Collisions Below the Fermi Energy

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Microscopic dynamical description of multinucleon transfer in 40Ar induced peripheral collisions at 15 MeV/nucleon

Cited by 16 publications

References 17 publications

Investigating Possible Existence of Hyper-Heavy Nuclei in Neutron Star Environment

Investigating Possible Existence of Hyper-Heavy Nuclei in Neutron Star Environment

Recent Progress in the Study of the Reaction 70Zn (15 MeV/nucleon) + 64Ni with the MAGNEX Spectrometer

Momentum Distribution Studies of Projectile Fragments from Peripheral Collisions Below the Fermi Energy

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Product

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Microscopic dynamical description of multinucleon transfer in ⁴⁰Ar induced peripheral collisions at 15 MeV/nucleon