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SUMMARY:Spectral method for studying nuclear four-body reactions
DTSTART;VALUE=DATE-TIME:20110713T123000Z
DTEND;VALUE=DATE-TIME:20110713T124500Z
DTSTAMP;VALUE=DATE-TIME:20260606T234524Z
UID:indico-contribution-5133@events.saip.org.za
DESCRIPTION:Speakers: Dithlase Masita (UNISA)\nReactions involving four pa
 rticles\, either in the entrance or final channel\, are quite involved whe
 n computing observables in comparison to three-body reactions. Yet these r
 eactions are of interest in studying reactions of astrophysical interest\,
  such as hep process\, which is essential for describing the quantitative 
 solar model. \n\nAt lower solar energies\, it is difficult to measure the 
 cross-section for the hep reaction. Moreover\, there are discrepancies in 
 calculations of the S-factor using different models and compared to the va
 lue predicted by the Standard Solar model. This problem in turn implies pr
 oblems in estimating the correct value for the reaction cross-section whic
 h is crucial for the understanding of the Standard Solar model. In order t
 o address this discrepancy and other observables\, a reliable numerical te
 chnique is necessary. In this work we propose a new spectral method capabl
 e of calculating low-energy phase shifts for scattering of the nucleon off
  a light nucleus. We consider reactions of the type (3+1) --> (3+1)\, with
 in the Faddeev-Yakubovsky framework. We show that these equations can be t
 ransformed into spectral-type set of equations that are numerical less exp
 ensive to solve in comparison to competing methods.\n\nhttps://events.saip
 .org.za/event/7/contributions/5133/
LOCATION: Acro5
URL:https://events.saip.org.za/event/7/contributions/5133/
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