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SUMMARY:Reactions in three- and four-body nuclear and hypernuclear systems
DTSTART;VALUE=DATE-TIME:20240529T110900Z
DTEND;VALUE=DATE-TIME:20240529T112900Z
DTSTAMP;VALUE=DATE-TIME:20260713T002142Z
UID:indico-contribution-23142@indico.ific.uv.es
DESCRIPTION:Speakers: Arnoldas Deltuva (Vilnius U)\nA rigorous few-body sc
 attering theory as proposed by Faddeev and extended by Yakubovsky and Alt\
 , Grassberger and Sandhas  is implemented in the momentum-space framework.
  Past applications include the nucleon-deuteron scattering\, three-cluster
  nuclear reactions\, and four-nucleon scattering. Recent and ongoing exten
 sions of this framework will be presented. \nFirst\, we made a two-fold ex
 tension of the standard dynamics by developing a new nonlocal form of opti
 cal potentials and simultaneously including the excitation of the nuclear 
 core. Example results for nucleon transfer reactions (d\,p) and (p\,d) and
  deuteron inelastic scattering (d\,d')\n10Be and 24Mg nuclei demonstrate a
  good reproduction of the experimental data and an improved consistency be
 tween the two-body (elastic and inelastic nucleon-nucleus scattering) and 
 three-body description [1\,2].\nSecond\, the four-nucleon scattering is ex
 tended to higher energies. Exact four-body calculations are compared with 
 those based on microscopic optical potential with no-core shell model dens
 ities\, allowing to evaluate the the reliability of the optical potential 
 method [3].\nThird\, reactions in hypernuclear three-body systems are desc
 ribed fully including the coupling between the nucleon-Lambda and nucleon-
 Sigma(+\,0\,-) states\, which a highly complicated problem   with many thr
 esholds. Various elastic and inelastic cross sections are studied [4].\n\n
  1. A. Deltuva\, D. Jurčiukonis\, Physics Letters B 840\, 137867 (2023).\
 n 2. A. Deltuva\, D. Jurčiukonis\, Phys. Rev. C 107\, 064602 (2023).\n 3.
  A. Deltuva et al.\, in preparation.\n 4. A. Deltuva et al.\, in preparati
 on.\n\nhttps://indico.ific.uv.es/event/7332/contributions/23142/
LOCATION:ADEIT - Valencia
URL:https://indico.ific.uv.es/event/7332/contributions/23142/
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