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Isotopic Effect in Double Proton Transfer Process of Porphycene Investigated by Enhanced QM/MM Method
Published on: July 19, 2019
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Quest for Cooper Pair Transfer in Heavy-Ion Reactions: The ^{206}Pb+^{118}Sn Case
S Szilner1, L Corradi2, J Diklić1
1<a href="https://ror.org/02mw21745">Ruđer Bošković Institute</a>, HR-10000 Zagreb, Croatia.
Physical Review Letters
|December 3, 2024
Summary
Nucleon-nucleon correlations in heavy-ion reactions were studied using neutron transfer. Results show pair-addition and pair-removal modes reveal nuclear correlations in vibrational and rotational nuclei.
Area of Science:
- Nuclear Physics
- Heavy-Ion Collisions
- Quantum Correlations
Background:
- Nucleon-nucleon correlations are fundamental to nuclear structure.
- Understanding these correlations is key to describing nuclear reactions.
- Heavy-ion transfer reactions provide a sensitive probe of these correlations.
Purpose of the Study:
- To investigate the effects of nucleon-nucleon correlations.
- To probe these correlations in nucleon transfer reactions with heavy ions.
- To analyze neutron transfer channels in the 206Pb+118Sn system.
Main Methods:
- High-efficiency, high-resolution measurement of neutron transfer observables.
- Utilizing a large solid angle magnetic spectrometer.
- Studying excitation functions over a wide range of internuclear distances.
Main Results:
- Experimental transfer probabilities for one- and two-neutron pick-up and stripping channels were measured.
- Coupled channel theory based on independent particle transfer successfully described experimental data.
- Two-neutron transfer cross sections revealed correlations manifesting as pair-addition and pair-removal modes.
Conclusions:
- Nucleon-nucleon correlations are effectively probed via nucleon transfer reactions.
- Pair-addition and pair-removal modes are elementary excitations in nuclei.
- These modes are significant in reactions between pair-vibrational and pair-rotational nuclei.
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