PoS - Proceedings of Science
Volume 419 - FAIR next generation scientists - 7th Edition Workshop (FAIRness2022) - Main session
Quasi-free (p,2p) reactions in inverse kinematics for studying the fission yield dependence on temperature
A. Graña Gonzalez*, H.T. Johansson, O.A. Kiselev, H.B. Rhee, D.M. Rossi, H.T. Törnqvist, J.L. Rodríguez-Sánchez, J. Benlliure, G. García-Jiménez, H. Álvarez-Pol, D. Cortina-Gil, L. Atar, L. Audouin, G. Authelet, A. Besteiro, G. Blanchon, K. Boretzky, P. Cabanelas, E. Casarejos, J. Cederkall, A. Chatillon, A. Corsi, M. Feijoo, D. Galaviz, I. Gasparic, R. Gernhäuser, M. Heil, A. Heinz, M. Holl, T. Jenegger, H. Johansson, O. Kiselev, P. Klenze, A. Knyazev, D. Körper, T. Kröll, J. Liancheng, I. Lihtar, Y.A. Litvinov, B. Löher, P. Morfouace, D. Mücher, S. Murillo-Morales, A. Obertelli, V. Panin, J. Park, S. Paschalis, A. Perea, M. Petri, S. Pirrone, L. Ponnath, A. Revel, H.B. Rhee, L. Rose, D. Rossi, P. Russotto, H. Simon, A. Stott, Y. Sun, C. Sürder, J. Taieb, R. Taniuchi, O. Tengblad, H.T. Törnqvist, S. Velardita, J. Vesic, B. Voss  on behalf of the R3B Collaborationet al. (click to show)
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Published on: June 19, 2023
Despite the recent experimental and theoretical progress in the investigation of the nuclear fission process, a complete description still represents a challenge in nuclear physics because it is
a very complex dynamical process, whose description involves the coupling between intrinsic and
collective degrees of freedom, as well as different quantum-mechanical phenomena. To improve on
the existing data on nuclear fission, we produce fission reactions of heavy nuclei in inverse kinematics
by using quasi-free (p,2p) scattering, which induce fission through particle-hole excitations that
can range from few to ten’s of MeV. The measurement of the four-momenta of the two outgoing
protons allows to reconstruct the excitation energy of the fissioning compound nucleus and therefore
to study the evolution of the fission yields with temperature. The realization of this kind of
experiment requires a complex experimental setup, providing full isotopic identification of both
fission fragments and an accurate measurement of the momenta of the two outgoing protons. This
was realized recently at the GSI/FAIR facility and here some preliminary results are presented.
DOI: https://doi.org/10.22323/1.419.0017
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