Advantages of the multinucleon transfer reactions based on 238U target for producing neutron-rich isotopes around N = 126

Zhu, Long; Li, Cheng; Su, Jun; Guo, Chenchen

doi:10.1016/j.physletb.2019.02.015

Cited by 20 publications

(12 citation statements)

References 41 publications

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“…The excitation energies available in these reactions supply 2 neutron evaporation from the primary Ti isotopes having the maximal yields. In the 58 Ni + 208 Pb reaction 50 Ti and 52 Ti are produced with the cross-sections 1 and 0.2 mb [209,210], respectively, which are consistent with our calculated cross-sections 0.6 and 0.35 mb, respec- tively. In the 64 Ni + 238 U reaction the experimental [211] and theoretical cross-sections for 52 Ti are 0.5 and 1.6 mb, respectively.…”

Section: Simplified Statistical Methodssupporting

confidence: 90%

“…Cross-section calculations for nuclei along N = 126 were also performed with other models [45,47,50]. For example, Zhu et al investigated MNT reactions in various heavy sys-…”

Section: Model Predictionsmentioning

confidence: 99%

“…Neutron evaporation channels for neutron-rich primary isotopes are indicated. The heaviest known isotopes are marked by arrows tems like W+U or Xe+Pt by using the model which is based on the DNS approach and the isospin-dependent quantum molecular dynamics model [50]. The results of the various models are quite different and can vary by several orders of magnitude for the same isotope [50,261].…”

Section: (D) (E) (F)mentioning

confidence: 99%

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How to extend the chart of nuclides?

et al. 2020

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In the past 85 years the number of known nuclides increased by more than a factor of ten, resulting in 4000 presently known isotopes of 118 elements. This considerable progress we owe to the discovery of new reaction types along with the development of powerful accelerators and experimental techniques for separation and identification of reaction products. Model predictions indicate that still about 4000 further nuclides are waiting for their discovery. The vastest unexplored territory is located on the neutron-rich side in the upper half of the chart of nuclides and hides the answers to some of the most fundamental questions of nuclear physics like the limits of nuclear stability, element synthesis in the universe or stellar evolution. The access to these nuclei is presently limited by available beam intensities and/or the lack of appropriate methods for their production and identification. The latter concerns particularly new neutron-rich isotopes of transuranium and superheavy elements. To extend this area, the hope is presently based on multinucleon transfer reactions and on the application of fusion reactions with radioactive ion beams. But how promising are these approaches? Based on a survey of present-day knowledge, we will treat the questions where we currently are on our journey towards new territory on the chart of nuclides, how the chances are to gain new territory in the future and which challenges we will have to face.

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Section: Simplified Statistical Methodssupporting

confidence: 90%

“…Cross-section calculations for nuclei along N = 126 were also performed with other models [45,47,50]. For example, Zhu et al investigated MNT reactions in various heavy sys-…”

Section: Model Predictionsmentioning

confidence: 99%

Section: (D) (E) (F)mentioning

confidence: 99%

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How to extend the chart of nuclides?

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“…Due to the trend of modern research activity towards the production of heavier than the projectile neutron-rich nuclei through multinucleon transfer reactions [35,36,37], special emphasis is given to the present work on their momentum distributions. Understanding the details of the production mechanism of these trans-projectile isotopes is of great importance for the application of such reactions in the production of neutron-rich isotopes of heavy elements [45,46,47]. The observable of momentum, is in fact a measure of the energy dissipation caused by the interaction of the projectile-target binary system, and thus can provide important information on which mechanism ultimately dominates the production of the fragments of interest.…”

Section: Outline Of Results and Comparisonsmentioning

confidence: 99%

Momentum Distributions of Projectile Fragments from Heavy-ion Peripheral Collisions at 15 MeV/nucleon with Emphasis on Trans-Projectile Isotopes

Koulouris¹,

Souliotis²,

Dimitropoulos³

et al. 2021

Preprint

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This paper presents our recent efforts to study the momentum distributions as well as the production of neutron-rich rare isotopes with heavy-ion beams in the energy region of 15 MeV/nucleon. Experimental cross sections of neutron-rich nuclides from collisions of a 86 Kr (15 MeV/nucleon) beam with 64 Ni and 58 Ni targets are presented. Experimental data were obtained from the previous work of our group with the MARS mass spectrometer at the Cyclotron Institute of Texas A&M University. On that note, detailed calculations of yields and momentum distributions of neutron-rich projectile-like fragments are presented for the interaction of 86 Kr with 64 Ni and compared with the aforementioned experimental data. The calculations were based on a two-step general approach: the dynamical stage of the primary interaction was described with the phenomenological deep-inelastic transfer model (DIT) and the microscopic constrained molecular dynamics model (CoMD); the deexcitation stage of the excited projectile fragments was described with the statistical binary-decay model GEMINI. The experimental data show an enhancement in the production of neutron-rich isotopes close to the projectile, and interestingly of heavier than the projectile neutron-rich nuclei. The behaviour of the data is relative to the predictions of the CoMD/GEMINI calculation. The study of the momentum distributions offers a novel route to study the reaction mechanism that dominates the production of the fragments of interest in peripheral heavy-ion collisions at intermediate energies. In the future, we plan to analyze experimental data that were obtained from the MAGNEX spectometer at the INFN-LNS in Catania, Italy.

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“…As discussed earlier, this reflects the stronger dominance of the Coulomb force over the nuclear force in the respective model, making very heavy systems unfavorable. Further, Zhu et al investigated MNT reactions in various heavy systems like W + U or Xe + Pt by using the model which is based on the DNS approach and the isospin-dependent quantum molecular dynamics model [41,120,121]. The results of different models can vary by several orders of magnitude for the same MNT product like shown in Table 2 exemplary for the isotope 204 Pt.…”

Section: State Of the Artmentioning

confidence: 99%

Nucleosynthesis in multinucleon transfer reactions

Heinz

Devaraja

2022

Eur. Phys. J. A

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How does one populate still vacant areas on the chart of nuclides? Mainly on the neutron-rich side several thousand further isotopes are expected to exist, including most of the nuclei along the astrophysical r-process path. The standard nucleosynthesis reactions, which are fragmentation, fission and fusion, are reaching their limits. Therefore, other pathways to exotic nuclei are needed. Years ago, the idea arose to revive multinucleon transfer reactions to progress toward the neutron-rich side of heavy and superheavy nuclei. Meanwhile, this option is investigated in nuclear physics labs worldwide. Beside new studies of transfer product kinematics and cross-sections, the development of suitable separation and detection techniques for heavy transfer products is ongoing. But how promising are these new advances? So far achieved results allow us to get an impression on the potential which multinucleon transfer reactions provide for nucleosynthesis.

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Advantages of the multinucleon transfer reactions based on 238U target for producing neutron-rich isotopes around N = 126

Cited by 20 publications

References 41 publications

How to extend the chart of nuclides?

How to extend the chart of nuclides?

Momentum Distributions of Projectile Fragments from Heavy-ion Peripheral Collisions at 15 MeV/nucleon with Emphasis on Trans-Projectile Isotopes

Nucleosynthesis in multinucleon transfer reactions

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Advantages of the multinucleon transfer reactions based on 238U target for producing neutron-rich isotopes around N = 126

Cited by 20 publications

References 41 publications

How to extend the chart of nuclides?

How to extend the chart of nuclides?

Momentum Distributions of Projectile Fragments from Heavy-ion Peripheral Collisions at 15 MeV/nucleon with Emphasis on Trans-Projectile Isotopes

Nucleosynthesis in multinucleon transfer reactions

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Advantages of the multinucleon transfer reactions based on 238U target for producing neutron-rich isotopes around N = 126