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Title: Investigating resonances above and below the threshold in nuclear reactions of astrophysical interest and beyond

Resonances in nuclear cross sections dramatically change their trends. Therefore, the presence of unexpected resonances might lead to unpredicted consequences on astrophysics and nuclear physics. In nuclear physics, resonances allow one to study states in the intermediate compound systems, to evaluate their cluster structure, for instance, especially in the energy regions approaching particle decay thresholds. In astrophysics, resonances might lead to changes in the nucleosynthesis flow, determining different isotopic compositions of the nuclear burning ashes. For these reasons, the Trojan Horse method has been modified to investigate resonant reactions. Thanks to this novel approach, for the first time normalization to direct data might be avoided. Moreover, in the case of sub threshold resonances, the Trojan Horse method modified to investigate resonances allows one to deduce the asymptotic normalization coefficient, showing the close connection between the two indirect approaches.
Authors:
 [1] ;  [2] ;  [3] ;  [1] ;  [4] ;  [5]
  1. Laboratori Nazionali del Sud - INFN, Catania (Italy)
  2. ATOMKI, Debrecen (Hungary)
  3. Cyclotron Institute, Texas A&M University, College Station, Texas (United States)
  4. (Italy)
  5. Sezione di Perugia - INFN, Perugia (Italy)
Publication Date:
OSTI Identifier:
22492473
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1681; Journal Issue: 1; Conference: Nuclear Structure and Dynamics '15: 3. international nuclear physics conference on nuclear structure and dynamics, Portoroz (Slovenia), 14-19 Jun 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ASHES; ASTROPHYSICS; ASYMPTOTIC SOLUTIONS; CROSS SECTIONS; ISOTOPE RATIO; NUCLEAR PHYSICS; NUCLEAR REACTIONS; NUCLEOSYNTHESIS; PARTICLE DECAY; RESONANCE