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SUMMARY:Alpha structure of 16O at high excitation energies by 3He+13C nucl
 ear reactions
DTSTART;VALUE=DATE-TIME:20240528T141000Z
DTEND;VALUE=DATE-TIME:20240528T143000Z
DTSTAMP;VALUE=DATE-TIME:20261011T080744Z
UID:indico-contribution-23120@indico.ific.uv.es
DESCRIPTION:Speakers: Ivano Lombardo (Univ. di Catania and INFN-Sezione di
  Catania)\n3He induced reactions allow to investigate the spectroscopy of 
 high excitation energy regions of light compound nuclei that can be formed
  in low energy reactions. We performed a new experiment of this type\, HEL
 ICA\, with the solid-state hodoscope OSCAR at the AN-2000 accelerator of t
 he INFN-LNL. In the experiment\, a 3He beam\, with energies ranging from a
 bout 1400 keV to 2200 keV was delivered to a thin 13C target. In particula
 r\, 13C(3He\,alpha)12C reactions\, leading to the C nucleus into several e
 xcited states (including the Hoyle state)\, were correctly identified. In 
 the talk\, we show preliminary angular distributions and excitation functi
 ons of the cross section for the 13C(3He\,a0)\, 13C(3He\,a1)\, 13C(3He\,a2
 ) reactions in a broad angular domain\, and discuss the impact on the spec
 troscopy of 16O. The preliminary values of the branching ratios between th
 e transitions populating the ground state and the Hoyle state show an ener
 gy dependence that suggest the occurrence of a strongly clustered state in
  16O at about 24 MeV excitation energy.\n\nhttps://indico.ific.uv.es/event
 /7332/contributions/23120/
LOCATION:ADEIT - Valencia
URL:https://indico.ific.uv.es/event/7332/contributions/23120/
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