Volume 131, Number 5, September 2020
|Number of page(s)||7|
|Published online||22 September 2020|
Statistically significant observation of and cross-sections for a new nuclear reaction channel on 197Au with bound dineutron escape
1 International Nuclear Safety Center of Ukraine; Department of Nuclear Physics, Taras Shevchenko National University of Kyiv - St. Volodymyrs‘ka, 64/13, 01601, Kyiv, Ukraine
2 Institute for Nuclear Research, Hungarian Academy of Sciences (MTA Atomki) - Bem tér 18/c, H-4026 Debrecen, Hungary
Received: 14 January 2020
Accepted: 11 August 2020
A new nuclear reaction channel on 197Au with the neutron as a projectile and a bound dineutron (2n) as an ejectile in the output channel is considered based on available experimental observations. The dineutron is assumed to be formed as a particle satellite, separated from the volume but not from the potential well of the 196Au nucleus. The dineutron was identified by statistically significant radioactivity detection due to decay of Au nuclei. Cross-sections for the 197Au Au reaction are determined as and for [6.09–6.39] and [6.175–6.455] MeV energy ranges, correspondingly. Possible outcomes of dineutron detection near the surface of deformed nuclei are also raised and discussed.
PACS: 21.45.Bc – Two-nucleon system / 25.90.+k – Other topics in nuclear reactions: specific reactions (restricted to new topics in section 25) / 27.10.+h – A ≤ 5
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