Formation of bound dineutrons in the ,[object Object],Lu ( ,[object Object],, ,[object Object], ,[object Object],) ,[object Object],Lu nuclear reaction and its cross-section
Ihor Kadenko (International Nuclear Safety Center of Ukraine of Taras Shevchenko National University of Kyiv, 01601, Kyiv, Ukraine, Department of Nuclear and High Energy Physics, Faculty of Physics, Taras Shevchenko National University of Kyiv, 01601, Kyiv, Ukraine)
; Barna Biró (HUN-REN Institute for Nuclear Research (HUN-REN ATOMKI), Debrecen, Hungary); Mihály Braun (HUN-REN Institute for Nuclear Research (HUN-REN ATOMKI), Debrecen, Hungary); András Fenyvesi (HUN-REN Institute for Nuclear Research (HUN-REN ATOMKI), Debrecen, Hungary); Kateryna Okopna (Department of Nuclear and High Energy Physics, Faculty of Physics, Taras Shevchenko National University of Kyiv, 01601, Kyiv, Ukraine); et al - Show all 7 authors
The dineutron as a bound chargeless nucleus of two identical nucleons has been attracting attention for many decades. In addition to the study of the formation of a bound dineutron in the outgoing channel of specific nuclear reactions, cross-section estimates have been gaining interest as research targets. We used a traditional neutron activation technique to irradiate Lu samples followed by measurements of the induced activity with HPGe spectrometer in order to detect gamma-peaks of the 175Lu ( n, 2 n) 174 gLu reaction product when this reaction channel is not open for incident neutron energies. Based on two measurements of the instrumental gamma-ray spectra of Lu samples we reliably identified the presence of the 174 gLu isotope in the outgoing channel of the 175Lu ( n, 2 n) 174 gLu nuclear reaction. Also, the cross-section for this nuclear reaction was obtained and to be equal mb. For the first time, the dineutron as a nuclearreaction product was indirectly detected via statistically significant observation of the induced activity of 174 gLu with a corresponding cross-section estimate.
