Speaker
Description
The study of ion-ion interactions at high energies is one of the main directions of modern nuclear physics. A significant number of Monte Carlo models have been developed in this direction, that require both experimental verification and improvement of their basic approaches. Also, the processes of nucleon charge exchange in ion fragmentation are poorly studied. There are only a few experiments performed in energy range 1-2 GeV/nucleon and only for isobaric transitions [1,2].
The experimental data were obtained at the FRAGM facility of the ITEP−TWAC heavy-ion complex for 12С fragmentation at 300 MeV/nucleon on a beryllium target [3, 4]. Fragments were detected at an angle equal to 3.5◦ with respect to the incident ion beam. The fragmentation of carbon ions leads to the production of three long-lived isotopes as a result of single nucleon charge exchange: 11Be (7 neutrons), 12B (7 neutrons), 12N (7 protons). Isotopes 11Be and 12B were found and their momentum spectra were measured. The predictions of four Monte Carlo models of ion-ion interactions (BC, INCL, LAQGSM, and QMD) were tested if they can describe the experimental momentum spectra of the fragments. The binary cascade (BC) model gives the best description.
- М.Roy-Stephan et al., Nucl.Phys. A482, 373 (1988).
- J. L. Rodriguez-Sanchez et al., Phys.Lett.B 807, 135565 (2020).
- B.M. Abramov et al., EPJ Web Conf. 138, 03002 (2017).
- B.M. Abramov et al., J.Phys.Conf.Ser. 1390, 012004 (2019).
Section | 2. Experimental and theoretical studies of nuclear reactions |
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The speaker is a student or young scientist | Yes |