Quantum Monte Carlo calculations of neutron-alpha scattering

We describe a new method to treat low-energy scattering problems in few-nucleon systems, and we apply it to the five-body case of neutron-alpha scattering. The method allows precise calculations of low-lying resonances and their widths. We find that a good three-nucleon interaction is crucial to obt...

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Veröffentlicht in:	Physical review letters 2007-07, Vol.99 (2), p.022502-022502, Article 022502
Hauptverfasser:	Nollett, Kenneth M, Pieper, Steven C, Wiringa, R B, Carlson, J, Hale, G M
Format:	Artikel
Sprache:	eng
Schlagworte:	MONTE CARLO METHOD NEUTRONS NUCLEAR PHYSICS AND RADIATION PHYSICS PHYSICS OF ELEMENTARY PARTICLES AND FIELDS SCATTERING
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Beschreibung
Zusammenfassung:	We describe a new method to treat low-energy scattering problems in few-nucleon systems, and we apply it to the five-body case of neutron-alpha scattering. The method allows precise calculations of low-lying resonances and their widths. We find that a good three-nucleon interaction is crucial to obtain an accurate description of neutron-alpha scattering.
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.99.022502