Publications
Publication Information
| Title | Spectroscopy of A=9 hyperlithium by the (e,e'K+) reaction |
| Authors | Toshiyuki Gogami, Chen Chen, Daisuke Kawama, Patrick Achenbach, Abdellah Ahmidouch, Ibrahim Albayrak, Darko Androic, Arshak Asaturyan, Razmik Asaturyan, Ozgur Ates, Pavlo Baturin, Rafael Badui, Werner Boeglin, Jason Bono, Edward Brash, Philip Carter, Atsushi Chiba, Michael Christy, Samuel Danagoulian, Raffaele De Leo, Daisuke Doi, Mostafa Elaasar, Rolf Ent, Yu Fujii, Manami Fujita, Miroslav Furic, Marianna Gabrielyan, Liping Gan, Franco Garibaldi, David Gaskell, Ashot Gasparian, Yuncheng Han, Osamu Hashimoto, Tanja Horn, Bitao Hu, Ed Hungerford, Mark Jones, Hiroki Kanda, Masashi Kaneta, Seigo Kato, Masaharu Kawai, Hari Khanal, Michael Kohl, Anusha Habarakada Liyanage, Wei Luo, Kazushige Maeda, Amur Margaryan, Pete Markowitz, Tomofumi Maruta, Akihiko Matsumura, Victor Maxwell, David Meekins, Arthur Mkrtchyan, Hamlet Mkrtchyan, Sho Nagao, Satoshi Nakamura, Amrendra Narayan, Casey Neville, Gabriel Niculescu, Maria Niculescu, Angel Nunez, Nuruzzaman Nuruzzaman, Yuichi Okayasu, Tomislav Petkovic, J. Pochodzalla, Xiyu Qiu, Joerg Reinhold, Victor Rodriguez, Chhanda Samanta, Bradley Sawatzky, Tomislav Seva, Ayako Shichijo, Vardan Tadevosyan, Liguang Tang, Naotaka Taniya, Kyo Tsukada, Micah Veilleux, William Vulcan, Frank Wesselmann, Stephen Wood, Taku Yamamoto, L. Ya, Z. Ye, Kosuke Yokota, Lulin Yuan, Simon Zhamkochyan, Lingyan Zhu |
| JLAB number | JLAB-PHY-21-3324 |
| LANL number | arXiv:2102.04437 |
| Other number | DOE/OR/23177-5162 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
| Other Funding: | Various Japanese agencies No. DE-FG02-99ER41065, No. DE-FG02-97ER41047 No. DE-AC02-06CH11357, No. DEFG02- 00ER41110 |
|
Journal Compiled for Physical Review C Volume 103 Page(s) L041301 Refereed | |
| Publication Abstract: | Missing mass spectroscopy with the $(e,e^{\prime}K^{+})$ reaction was performed at JLab Hall C for the neutron rich $\Lambda$ hypernucleus $^{9}_{\Lambda}{\rm Li}$. The ground state energy was obtained to be $B_{\Lambda}^{\rm g.s.}=8.84\pm0.17^{\rm stat.}\pm0.15^{\rm sys.}~{\rm MeV}$ by using shell model calculations of a cross section ratio and an energy separation of the spin doublet states ($3/2^{+}_1$ and $5/2^{+}_1$). In addition, peaks that are considered to be states of [$^{8}{\rm Li}(3^{+})\otimes s_{\Lambda}=3/2^{+}_{2}, 1/2^{+}$] and [$^{8}{\rm Li}(1^{+})\otimes s_{\Lambda}=5/2^{+}_{2}, 7/2^{+}$] were observed at $E_{\Lambda}(\#2)=1.74\pm0.27^{\rm stat.}\pm0.11^{\rm sys.}~{\rm MeV}$ and $E_{\Lambda}(\#3)=3.30\pm0.24^{\rm stat.}\pm0.11^{\rm sys.}~{\rm MeV}$, respectively. The $E_{\Lambda}(\#3)$ is larger than shell model predictions by a few hundred keV, and the difference would indicate that a ${\rm ^{5}He}+t$ structure is more developed for the $3^{+}$ state than those for the $2^{+}$ and $1^{+}$ states in a core nucleus $^{8}{\rm Li}$ as a cluster model calculation suggests. |
| Experiment Numbers: | E05-115 |
| Group: | Hall C |
| Document: | |
| DOI: | https://doi.org/10.1103/PhysRevC.103.L041301 |
| Accepted Manuscript: | 2009.04502.pdf |
| Supporting Documents: | |
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