Article detail · 2022
Analysis of the one-neutron transfer reaction in O18+Se76 collisions at 275 MeV
- Year
- 2022
- Type
- article
Data source split
- YÖKSİS YÖKSİS article record
- YÖKSİS venue Physical Review C
- Catalog match (ISSN) Physical Review C
- OpenAlex OpenAlex enrichment (abstract, citations, topics)
Abstract
OpenAlex · lv
Background: Heavy-ion one-nucleon transfer reactions are promising tools to investigate single-particle configurations in nuclear states with and without the excitation of the core degrees of freedom. A careful determination of the spectroscopic amplitudes of these configurations is essential for the accurate study of other direct reactions as well as $\ensuremath{\beta}$ decays. In nucleon transfer reactions core excitations, for both target and projectile systems, are best approached via coupled-channels reaction schemes. Despite being notoriously demanding in terms of computing resources, coupled-channels analyses are progressively becoming more affordable even within model spaces large enough for tackling medium mass nuclei. In this context, the $^{76}\mathrm{Se}(^{18}\mathrm{O},^{17}\mathrm{O})^{77}\mathrm{Se}$ reaction, here under study, gives a quantitative access to the relevant single-particle orbitals and core polarization configurations built on $^{76}\mathrm{Se}$. This is particularly relevant, since it provides data-driven information to constrain nuclear structure models for $^{76}\mathrm{Se}$, which is the daughter nucleus in the $^{76}\mathrm{Ge} \ensuremath{\beta}\ensuremath{\beta}$ decay. This reaction is one of the systems studied in the frame of the Nuclear Matrix Elements for Neutrinoless double beta decay project.Purpose: We want to analyze transitions to low-lying excited states of the residual and ejectile nuclei in the $^{76}\mathrm{Se}(^{18}\mathrm{O},^{17}\mathrm{O})^{77}\mathrm{Se}$ one-neutron stripping reaction at 275-MeV incident energy and determine the role of single-particle and core excitation in the description of the measured cross sections. In addition, we explore the sensitivity of the calculated cross section to different nuclear structure models.Methods: The excitation energy spectrum and the differential cross-section angular distributions are measured using the MAGNEX large acceptance magnetic spectrometer for the detection of the ejectiles and the missing mass technique for the reconstruction of the reaction kinematics. The data are compared with calculations based on distorted-wave Born approximation, coupled-channels Born approximation, and coupled reaction channels adopting spectroscopic amplitudes for the projectile and target overlaps derived by large-scale shell-model calculations and interacting boson-fermion model.Results: Peaks in the energy spectra corresponding to groups of unresolved transitions to $^{77}\mathrm{Se}$ and $^{17}\mathrm{O}$ are identified. The experimental cross sections are extracted and compared to theoretical calculations. A remarkable agreement is found, without using any scaling factors, demonstrating that the adopted models for nuclear structure and reaction take into account the relevant aspects of the studied processes. The main transitions which contribute to the cross section of each peak are identified.Conclusions: The coupling with the inelastic channels feeding states in entrance and exit partitions is important in the one-neutron transfer reaction and should be accounted for in future analyses of other direct reactions such as single and double charge exchange processes involving $^{76}\mathrm{Se}$ isotope. The description of $^{77}\mathrm{Se}$ indicates the need of a large model space, in the view of an accurate description of the low-lying states, a feature that should be likely accounted even for $\ensuremath{\beta}\ensuremath{\beta}$-decay studies of $^{76}\mathrm{Ge}$.
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Citations
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35 citations
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19 publications in the local catalog that cite this work (OpenAlex reference match; not the full global list).
- Multichannel experimental and theoretical approach to the C12(O18,F18)B12 single-charge-exchange reaction at 275 MeV: Initial-state interaction and single-particle properties of nuclear wave functions 2023
- One-neutron transfer reaction in the 18O+48Ti collision at 275 MeV 2023
- O 18 + Ti 48 elastic and inelastic scattering at 275 MeV 2024
- Analysis of one-proton transfer reaction in O 18 + Se 76 collisions at 275 MeV 2024
- Measurement of the 116Sn(18O,18Ne)116Cd double charge exchange reaction at 276 MeV 2024
- Multichannel experimental and theoretical approach to the 12C( 18O, 18F) 12B single-charge-exchange reaction at 275 MeV. II. Competition between the meson exchange and the sequential transfer in the reaction mechanism 2024
- A multi–channel study of the 20Ne + 130Te system within the NUMEN project 2023
- Study of the one-neutron transfer reaction in 18O + 76Se collision at 275 MeV in the context of the NUMEN project 2023
- One-nucleon transfer reactions in the 20Ne+76Ge system at Elab=15.3 MeV/u 2025
- Recent results in the study of the 20Ne + 130Te collision within the NUMEN project and future perspectives 2024