$^6$He-triton cluster states in $^9$Li

TL;DR

This paper investigates cluster states in lithium-9 using a helium-triton cluster model, revealing states near the threshold energy that form a specific band and share neutron configurations with beryllium-10.

Contribution

It introduces a $^6$He-$t$ cluster model to identify and analyze cluster states in $^9$Li, highlighting their structure and energy characteristics.

Findings

Identification of $^6$He-$t$ cluster states near threshold energy

Formation of a $K^=1/2^-$ band in $^9$Li

Neutron configuration similarity with $^{10}$Be's $K^=0^+_2$ band

Abstract

Cluster states in $^9$Li are investigated with calculations of a $^6$He-$t$ cluster model. Results suggest $^6$He-$t$ cluster states near the $^6$He-$t$ threshold energy. These states construct a $K^\pi=1/2^-$ band and their neutron configuration is similar to that of the $K^\pi=0^+_2$ band in $^{10}$Be.