Speaker
Description
At cyclotron U-400 of the Flerov Laboratory of Nuclear Reactions of Joint Institute for Nuclear Research (Dubna, Russia), the differential cross sections for the elastic and inelastic
scattering of 7Li+10B reaction products (see Fig.1) have been measured at ELAB = 58 MeV of 7Li beam. One of the aim of the experiment was to measure the experimental angular distributions of the differential cross sections for 7Lig.s, 6Lig.s, 6Li(Jπ=0+; E=3,56 MeV; T=1) states to investigate and compare their spatial properties at the same experimental condition.
The excited state of 6Li(Jπ=0+; E=3,56 MeV; T=1) is the isobaric analogue state of the 6Heg.s. Due to isospin symmetry of strong interaction, this isobaric analog state 6Li(Jπ=0+; E=3,56 MeV; T=1) has the same spatial and spin features as 6Heg.s halo nucleus [1, 2].
In Ref. [3] a hypothesis was put forward about n-p halo structure of 6Li ground state, which was indirectly confirmed by comparison of σR values of 6He,6,7Li+28Si reactions [4,5] and intermediate width of 4He momentum distribution in 6Li breakup reactions [6].
The experimental angular distributions of 7Lig.s, 6Lig.s, 6Li(3.56 MeV) are shown in Fig. 2.
The work has been funded by the Russian Science Foundation, project No. 24-22-00117.
References:
[1] Zhihong Li, et al., Phys. Lett. B 527, 50-54, (2002);
[2] L.I. Galanina and N. S. Zelenskaya, Phys. At. Nucl. 76, 1457 (2013);
[3] I.N. Izosimov, Phys. At. Nucl. 80, 867-876 (2017);
[4] Yu.G. Sobolev, et al., Bull. Rus. Acad.Sci., Phys. Ser.69, 1605-1609, (2005);
[5] K.V. Lukyanov, et al., Bull. Rus. Acad.Sci., Phys. Ser.72, 356-360, (2008);
[6] R. Kalpakchieva, et al., Phys. At. Nucl. 70, 619 (2007).
| Section | Nuclear physics (Section 1) |
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