Structure of the neutron-rich N=7 isotones 10Li and 9He
H. Al Falou, A. Leprince, N.A. Orr (for the LPC-CHARISSA-DEMON, Collaboration)
TL;DR
This study investigates the structure of unbound neutron-rich isotones 10Li and 9He near threshold energies using breakup reactions, revealing virtual s-wave strength and higher-lying resonances.
Contribution
It provides new experimental insights into the near-threshold structure of 10Li and 9He through proton removal and breakup reactions at intermediate energies.
Findings
Observation of virtual s-wave strength near threshold
Identification of higher-lying resonances
Use of coincident detection for decay energy reconstruction
Abstract
The near threshold structure of the unbound N=7 isotones 10Li and 9He has been investigated using proton removal and breakup from intermediate energy (35 MeV/nucleon) secondary beams of 11Be and 14,15B. The coincident detection of the beam velocity 9Li and 8He fragments and neutrons permitted the relative energy of the in-flight decay of 10Li and 9He to be reconstructed. Both systems were found to exhibited virtual s-wave strength near threshold together with a higher-lying resonance.
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