Observation of a broad $p$-wave resonant state in $^{9}$He
Nuclear Experiment
2026-02-10 v1 Nuclear Theory
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.
Cite
@article{arxiv.2602.07810,
title = {Observation of a broad $p$-wave resonant state in $^{9}$He},
author = {Y. L. Sun and A. Corsi and Y. Kubota and G. Authelet and H. Baba and C. Caesar and D. Calvet and A. Delbart and M. Dozono and J. Feng and F. Flavigny and J. -M. Gheller and J. Gibelin and A. Giganon and A. Gillibert and S. Giraud and K. Hasegawa and T. Isobe and Y. Kanaya and S. Kawakami and D. Kim and Y. Kiyokawa and M. Kobayashi and N. Kobayashi and T. Kobayashi and Y. Kondo and Z. Korkulu and S. Koyama and V. Lapoux and Y. Maeda and F. M. Marques and T. Miyazaki and T. Motobayashi and T. Nakamura and N. Nakatsuka and Y. Nishio and A. Obertelli and A. Ohkura and N. A. Orr and S. Ota and H. Otsu and T. Ozaki and V. Panin and S. Paschalis and E. C. Pollacco and S. Reichert and J. -Y. Rousse and A. T. Saito and S. Sakaguchi and M. Sako and C. Santamaria and M. Sasano and H. Sato and M. Shikata and Y. Shimizu and Y. Shindo and L. Stuhl and T. Sumikama and M. Tabata and Y. Togano and J. Tsubota and Z. H. Yang and J. Yasuda and K. Yoneda and J. Zenihiro and T. Uesaka},
journal= {arXiv preprint arXiv:2602.07810},
year = {2026}
}