Isobaric charge-exchange reactions: A tool to study the excitation of baryonic resonances in exotic nuclear matter

J. L. Rodríguez-Sánchez, J. Benlliure, E. Haettner, C. Scheidenberger, J. Vargas, Y. Ayyad, H. Alvarez-Pol, J. Atkinson, T. Aumann, S. Beceiro-Novo, K. Boretzky, M. Caamaño, E. Casarejos, D. Cortina-Gil, P. Díaz Fernández, A. Estrade, H. Geissel, K. Itahashi, A. Kelić-Heil, H. LenskeYu A. Litvinov, C. Paradela, D. Pérez-Loureiro, S. Pietri, A. Prochazka, T. R. Saito, M. Takechi, Y. K. Tanaka, I. Vidaña, H. Weick, J. S. Winfield

Research output: Contribution to journalConference articlepeer-review

Abstract

Isobaric charge-exchange reactions induced by beams of112Sn have been investigated at the GSI facility using the fragment separator FRS. The high-resolving power of this spectrometer makes it possible to obtain the isobaric charge-exchange cross sections with an uncertainty of 3.5% and to separate quasi-elastic and inelastic contributions in the missing-energy spectra, in which the inelastic component is associated to the in-medium excitation of baryonic resonances such as the ∆ resonance. We report on the results obtained for the (p, n) channel excited by using different targets that cover a large range in neutron excess. In addition, we also compare the missing-energy spectra with an intranuclear cascade model coupled to a de-excitation code to investigate the in-medium effects in the production of baryonic resonances.

Original languageEnglish
Article number012104
JournalJournal of Physics: Conference Series
Volume1643
Issue number1
DOIs
StatePublished - Dec 23 2020
Event27th International Nuclear Physics Conference, INPC 2019 - Glasgow, United Kingdom
Duration: Jul 29 2019Aug 2 2019

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