Observation of a broad $p$-wave resonant state in $^{9}$He
Y. L. Sun, A. Corsi, Y. Kubota, G. Authelet, H. Baba, C. Caesar, D. Calvet, A. Delbart, M. Dozono, J. Feng, F. Flavigny, J.-M. Gheller, J. Gibelin, A. Giganon, A. Gillibert, S. Giraud, K. Hasegawa, T. Isobe, Y. Kanaya, S. Kawakami, D. Kim, Y. Kiyokawa, M. Kobayashi, N. Kobayashi
TL;DR
This study identifies a broad p-wave resonant state in helium-9 through invariant-mass spectroscopy, providing insights into its structure and resonance properties.
Contribution
First observation of a broad p-wave resonance in helium-9 using invariant-mass spectroscopy from lithium-11 knockout reactions.
Findings
Resonant state at 1.28 MeV with a width of 0.82 MeV
Observation of a broad p-wave resonance in helium-9
Enhanced understanding of helium-9 nuclear structure
Abstract
We report on the two-body invariant-mass spectroscopy of He, populated via the 11 knockout reaction from the two-neutron halo nucleus Li at 250 MeV/nucleon. A broad -wave resonant state of He was observed at 1.28(1) MeV with a width of 0.82(4) MeV.
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Taxonomy
TopicsNuclear physics research studies · Quantum Chromodynamics and Particle Interactions · Atomic and Subatomic Physics Research