Open AccessTransfer to the continuum of 11Be with the application of ab-initio S-matrix
Author(s) -
D. Carbone,
A. Bonaccorso,
F. Cappuzzello,
M. Cavallaro,
Guillaume Hupin,
Petr Navrátil,
Sofia Quaglioni
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1643/1/012119
Subject(s) - ab initio , physics , r matrix , atomic physics , ab initio quantum chemistry methods , neutron , shell model , nuclear physics , quantum mechanics , molecule
The 9 Be( 18 O, 16 O) 11 Be two-neutron transfer reaction at 84 MeV is measured at forward angles to explore the continuum of 11 Be nucleus. Transfer-to-the-continuum (TC) reaction calculations are applied using for the first time an ab-initio S -matrix. It is derived from the ab-initio no-core shell model with continuum (NCSMC) method, recently used to describe the bound and continuum spectrum of 11 Be. Previously known levels are confirmed and theoretical and experimental evidence for a 9/2+ state at E x = 5.8 MeV is given, whose configuration is thought to be 10 Be(2 + ) + n(d 5/2 ).