1. Initial State Interaction for the 20Ne + 130Te and 18O + 116Sn Systems at 15.3 AMeV from Elastic and Inelastic Scattering Measurements
- Author
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Efrain R. Chávez Lomelí, Salvatore Tudisco, Alessandro Spatafora, G. A. Brischetto, Daniela Calvo, Luis Acosta, José R. B. Oliveira, Aydin Yildirim, Francesco Cappuzzello, Athina Pakou, Roberto Linares, V. A. B. Zagatto, Paolo Finocchiaro, I. Ciraldo, Luciano Pandola, A. Hacisalihoglu, Federico Pinna, Nilberto H. Medina, Ismail Boztosun, H. Petrascu, N. N. Deshmukh, Russo G, O. Sgouros, P. Amador-Valenzuela, Franck Delaunay, Manuela Cavallaro, M. Cutuli, G. Lanzalone, G. A. Souliotis, Felice Iazzi, S. O. Solakci, Laura La Fauci, D. Torresi, C. Agodi, S. Firat, V. Soukeras, D. R. Mendes, Diana Carbone, Salvatore Calabrese, Maria Fisichella, A. Foti, Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), and Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)
- Subjects
lcsh:QC793-793.5 ,elastic and inelastic scattering ,MathematicsofComputing_GENERAL ,General Physics and Astronomy ,double beta decay ,Context (language use) ,model: optical ,potential: optical ,initial state interaction ,Inelastic scattering ,[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] ,initial-state interaction ,01 natural sciences ,Measure (mathematics) ,Nuclear physics ,double-beta decay: (0neutrino) ,MAGNEX magnetic spectrometer ,Double beta decay ,distorted wave Born approximation ,0103 physical sciences ,double-beta decay: (2neutrino) ,cross section: inelastic scattering ,angular distribution ,neutrino: mass ,Born approximation ,010306 general physics ,Physics ,nucleus: semileptonic decay ,double charge exchange reactions ,Range (particle radiation) ,010308 nuclear & particles physics ,Projectile ,ESPECTROMETRIA ,lcsh:Elementary particle physics ,cross section: measured ,charge exchange ,final-state interaction ,coupled channel ,Characterization (materials science) ,TheoryofComputation_MATHEMATICALLOGICANDFORMALLANGUAGES ,coupled-channel calculations ,magnetic spectrometer: acceptance ,optical potential - Abstract
Double charge exchange (DCE) reactions could provide experimentally driven information about nuclear matrix elements of interest in the context of neutrinoless double-β decay. To achieve this goal, a detailed description of the reaction mechanism is mandatory. This requires the full characterization of the initial and final-state interactions, which are poorly known for many of the projectile-target systems involved in future DCE studies. Among these, we intend to study the 20Ne + 130Te and 18O + 116Sn systems at 15.3 AMeV, which are particularly relevant due to their connection with the 130Te→130Xe and 116Cd→116Sn double-β decays. We measure the elastic and inelastic scattering cross-section angular distributions and compare them with theoretical calculations performed in the optical model, one-step distorted wave Born approximation, and coupled-channel approaches using the São Paulo double-folding optical potential. A good description of the experimental data in the whole explored range of transferred momenta is obtained provided that couplings with the 21+ states of the projectile and target are explicitly included within the coupled-channel approach. These results are relevant also in the analysis of other quasi-elastic reaction channels in these systems, in which the same couplings should be included.
- Published
- 2021