Disintegration of 12C nuclei by tagged photons of 700–1500 MeV energy at the GRAAL facility has been studied by means of the LAGRANγE detector with a wide angular acceptance. The energy and momentum distributions of produced neutrons and protons as well as their multiplicity distributions were measured and compared with corresponding distributions calculated with the RELDIS model based on the intranuclear cascade and Fermi break-up models. It was found that eight fragments are created on average once per about 100 disintegration events, while a complete fragmentation of 12C into 12 nucleons is observed typically only once per 2000 events. Measured multiplicity distributions of produced fragments are well described by the model. The measured total photoabsorption cross section on 12C in the same energy range is also reported.
V. Nedorezov, A. D’Angelo, O. Bartalini, V. Bellini, M. Capogni, L.E. Casano, M. Castoldi, F. Curciarello, V. De Leo, J.-P. Didelez, R. Di Salvo, A. Fantini, D. Franco, G. Gervino, F. Ghio, G. Giardina, B. Girolami, A. Giusa, A. Lapik, P. Levi Sandri, F. Mammoliti, G. Mandaglio, M. Manganaro, D. Moricciani, A. Mushkarenkov, I. Pshenichnov, C. Randieri, N. Rudnev, G. Russo, C. Schaerf, M. L. Sperduto, M.-C. Sutera, A. Turinge, V. Vegna, I. Zonta (2015)
Nuclear Physics A – August 2015, Vol. 940, pp. 264-278, DOI: 10.1016/j.nuclphysa.2015.05.001.
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Nuclear Physics A focuses on the domain of nuclear and hadronic physics and includes the following subsections: Nuclear Structure and Dynamics; Intermediate and High Energy Heavy Ion Physics; Hadronic Physics; Electromagnetic and Weak Interactions; Nuclear Astrophysics. The emphasis is on original research papers. A number of carefully selected and reviewed conference proceedings are published as an integral part of the journal. Conference proceedings on the topics covered by Nuclear Physics A are published in the (separately available) journal Nuclear and Particle Physics Proceedings.