Calculation of multichannel reactions in the four-nucleon system above breakup threshold

The exact four-body equations of Alt, Grassberger, and Sandhas are solved for neutron-3He and proton-3H scattering in the energy regime above the four-nucleon breakup threshold. Cross sections and spin observables for elastic, transfer, charge-exchange, and breakup reactions are calculated using rea...

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Bibliographic Details
Published in:Physical review letters 2014-09, Vol.113 (10), p.102502-102502, Article 102502
Main Authors: Deltuva, A, Fonseca, A C
Format: Article
Language:English
Subjects:
Breakup
Cross sections
Mathematical analysis
Mathematical models
Nucleon-nucleon interactions
Scattering
Thresholds
Vectors (mathematics)
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Summary:The exact four-body equations of Alt, Grassberger, and Sandhas are solved for neutron-3He and proton-3H scattering in the energy regime above the four-nucleon breakup threshold. Cross sections and spin observables for elastic, transfer, charge-exchange, and breakup reactions are calculated using realistic nucleon-nucleon interaction models, including the one with effective many-nucleon forces due to explicit Δ-isobar excitation. The experimental data are described reasonably well with only few exceptions such as vector analyzing powers.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.113.102502