Spectroscopy of A=9 hyperlithium with the (e, e ' K+) reaction

Gogami T.; Chen C.; Kawama D.; Achenbach P.; Ahmidouch A.; Albayrak I; Androic D.; Asaturyan A.; Asaturyan R.; Ates O.; Baturin P.; Badui R.; Boeglin W.; Bono J.; Brash E.; Carter P.; Chiba A.; Christy E.; Danagoulian S.; De Leo R.; Doi D.; Elaasar M.; Ent R.; Fujii Y.; Fujita M.; Furic M.; Gabrielyan M.; Gan L.; Garibaldi F.; Gaskell D.; Gasparian A.; Han Y.; Hashimoto O.; Horn T.; Hu B.; Hungerford Ed V; Jones M.; Kanda H.; Kaneta M.; Kato S.; Kawai M.; Khanal H.; Kohl M.; Liyanage A.; Luo W.; Maeda K.; Margaryan A.; Markowitz P.; Maruta T.; Matsumura A.; Maxwell V; Meekins D.; Mkrtchyan A.; Mkrtchyan H.; Nagao S.; Nakamura S. N.; Narayan A.; Neville C.; Niculescu G.; Niculescu M. I; Nunez A.; Nuruzzaman; Okayasu Y.; Petkovic T.; Pochodzalla J.; Qiu X.; Reinhold J.; Rodriguez V. M.; Samanta C.; Sawatzky B.; Seva T.; Shichijo A.; Tadevosyan V; Tang L.; Taniya N.; Tsukada K.; Veilleux M.; Vulcan W.; Wesselmann F. R.; Wood S. A.; Yamamoto T.; Ya L.; Ye Z.; Yokota K.; Yuan L.; Zhamkochyan S.; Zhu L.

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Spectroscopy of A=9 hyperlithium with the (e, e ' K+) reaction

机译：A = 9高氧化锂的光谱学用（E，E'k +）反应

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Missing mass spectroscopy with the (e, e', K+) reaction was performed at Jefferson Laboratory's Hall C for the neutron-rich Lambda hypernucleus Li-9(Lambda). The ground-state (g.s.) energy was obtained to be B-Lambda(g.s.) = 8.84 +/- 0.17(stat.) +/- 0.15(sys.) 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 [Li-8(3(+)) circle plus s(Lambda) = 3/2(2)(+), 1/2(+)] and [Li-8(3(+)) circle times s (Lambda) = 5/2(2)(+), 7/2(+)] were observed at E-Lambda (no. 2) = 1.74 +/- 0.27(stat.) +/- 0.11(sys). and E Lambda (no. 3) = 3.30 +/- 0.24(stat.) +/- 0.11(sys.) MeV, respectively. The E Lambda (no. 3) is larger than shell-model predictions by a few hundred keV, and the difference would indicate that a He-5 + t structure is more developed for the 3(+) state than those for the 2(+) and 1(+) states in a core nucleus Li-8 as a cluster model calculation suggests.

机译：在杰斐逊实验室的C厅对中子丰富的Lambda超核Li-9（Lambda）进行了（e，e'，K+）反应缺失质谱分析。获得的基态（g.s.）能量为B-Lambda（g.s.）=8.84+/-0.17（静态）+/-0.15（系统）利用壳层模型计算了自旋双态（3/2（1）（+）和5/2（1）（+）的横截面比和能量分离。此外，在E-Lambda（no.2）=1.74+/-0.27（stat.）+/-0.11（sys）处观察到被认为是[Li-8（3（+））圆加s（Lambda）=3/2（2+）、1/2（+）]和[Li-8（3（+））圆乘以s（Lambda）=5/2（2+）、7/2（+）]状态的峰值。而E Lambda（第3位）=3.30+/-0.24（统计）+/-0.11（系统）分别为MeV。E Lambda（no.3）比壳模型预测的大几百keV，这种差异表明，根据团簇模型计算，核Li-8中3（+）态的He-5+t结构比2（+）和1（+）态的He-5+t结构更发达。

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《Physical review, C》 |2021年第4期|共5页
作者
Gogami T.; Chen C.; Kawama D.; Achenbach P.; Ahmidouch A.; Albayrak I; Androic D.; Asaturyan A.; Asaturyan R.; Ates O.; Baturin P.; Badui R.; Boeglin W.; Bono J.; Brash E.; Carter P.; Chiba A.; Christy E.; Danagoulian S.; De Leo R.; Doi D.; Elaasar M.; Ent R.; Fujii Y.; Fujita M.; Furic M.; Gabrielyan M.; Gan L.; Garibaldi F.; Gaskell D.; Gasparian A.; Han Y.; Hashimoto O.; Horn T.; Hu B.; Hungerford Ed V; Jones M.; Kanda H.; Kaneta M.; Kato S.; Kawai M.; Khanal H.; Kohl M.; Liyanage A.; Luo W.; Maeda K.; Margaryan A.; Markowitz P.; Maruta T.; Matsumura A.; Maxwell V; Meekins D.; Mkrtchyan A.; Mkrtchyan H.; Nagao S.; Nakamura S. N.; Narayan A.; Neville C.; Niculescu G.; Niculescu M. I; Nunez A.; Nuruzzaman; Okayasu Y.; Petkovic T.; Pochodzalla J.; Qiu X.; Reinhold J.; Rodriguez V. M.; Samanta C.; Sawatzky B.; Seva T.; Shichijo A.; Tadevosyan V; Tang L.; Taniya N.; Tsukada K.; Veilleux M.; Vulcan W.; Wesselmann F. R.; Wood S. A.; Yamamoto T.; Ya L.; Ye Z.; Yokota K.; Yuan L.; Zhamkochyan S.; Zhu L.;
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Kyoto Univ Grad Sch Sci Kyoto Kyoto 6068502 Japan;

Hampton Univ Dept Phys Hampton VA 23668 USA;

Tohoku Univ Grad Sch Sci Sendai Miyagi 9808578 Japan;

Johannes Gutenberg Univ Mainz Inst Nucl Phys D-55099 Mainz Germany;

North Carolina A&

T State Univ Dept Phys Greensboro NC 27411 USA;

Hampton Univ Dept Phys Hampton VA 23668 USA;

Univ Zagreb Dept Phys HR-10000 Zagreb Croatia;

AI Alikhanyan Natl Sci Lab Yerevan 0036 Armenia;

AI Alikhanyan Natl Sci Lab Yerevan 0036 Armenia;

Hampton Univ Dept Phys Hampton VA 23668 USA;

Florida Int Univ Dept Phys Miami FL 27411 USA;

Florida Int Univ Dept Phys Miami FL 27411 USA;

Florida Int Univ Dept Phys Miami FL 27411 USA;

Florida Int Univ Dept Phys Miami FL 27411 USA;

Christopher Newport Univ Dept Phys Comp Sci &

Engn Newport News VA 23606 USA;

Christopher Newport Univ Dept Phys Comp Sci &

Engn Newport News VA 23606 USA;

Christopher Newport Univ Dept Phys Comp Sci &

Engn Newport News VA 23606 USA;

Hampton Univ Dept Phys Hampton VA 23668 USA;

North Carolina A&

T State Univ Dept Phys Greensboro NC 27411 USA;

Univ Bari Sez Bari Ist Nazl Fis Nucl I-70126 Bari Italy;

Tohoku Univ Grad Sch Sci Sendai Miyagi 9808578 Japan;

Southern Univ New Orleans Dept Phys New Orleans LA 70126 USA;

Thomas Jefferson Natl Accelerator Facil JLab Newport News VA 23606 USA;

Tohoku Univ Grad Sch Sci Sendai Miyagi 9808578 Japan;

Tohoku Univ Grad Sch Sci Sendai Miyagi 9808578 Japan;

Univ Zagreb Dept Phys HR-10000 Zagreb Croatia;

Florida Int Univ Dept Phys Miami FL 27411 USA;

Univ North Carolina Wilmington Dept Phys Wilmington NC 28403 USA;

Ist Super Sanit Sez Sanit Ist Nazl Fis Nucl I-00161 Rome Italy;

Thomas Jefferson Natl Accelerator Facil JLab Newport News VA 23606 USA;

North Carolina A&

T State Univ Dept Phys Greensboro NC 27411 USA;

Hampton Univ Dept Phys Hampton VA 23668 USA;

Tohoku Univ Grad Sch Sci Sendai Miyagi 9808578 Japan;

Thomas Jefferson Natl Accelerator Facil JLab Newport News VA 23606 USA;

Lanzhou Univ Nucl Phys Inst Lanzhou 730000 Gansu Peoples R China;

Univ Houston Dept Phys Houston TX 77204 USA;

Thomas Jefferson Natl Accelerator Facil JLab Newport News VA 23606 USA;

Tohoku Univ Grad Sch Sci Sendai Miyagi 9808578 Japan;

Tohoku Univ Grad Sch Sci Sendai Miyagi 9808578 Japan;

Yamagata Univ Dept Phys Yamagata 9908560 Japan;

Tohoku Univ Grad Sch Sci Sendai Miyagi 9808578 Japan;

Florida Int Univ Dept Phys Miami FL 27411 USA;

Hampton Univ Dept Phys Hampton VA 23668 USA;

Hampton Univ Dept Phys Hampton VA 23668 USA;

Lanzhou Univ Nucl Phys Inst Lanzhou 730000 Gansu Peoples R China;

Tohoku Univ Grad Sch Sci Sendai Miyagi 9808578 Japan;

AI Alikhanyan Natl Sci Lab Yerevan 0036 Armenia;

Florida Int Univ Dept Phys Miami FL 27411 USA;

Tohoku Univ Grad Sch Sci Sendai Miyagi 9808578 Japan;

Tohoku Univ Grad Sch Sci Sendai Miyagi 9808578 Japan;

Florida Int Univ Dept Phys Miami FL 27411 USA;

Thomas Jefferson Natl Accelerator Facil JLab Newport News VA 23606 USA;

AI Alikhanyan Natl Sci Lab Yerevan 0036 Armenia;

AI Alikhanyan Natl Sci Lab Yerevan 0036 Armenia;

Tohoku Univ Grad Sch Sci Sendai Miyagi 9808578 Japan;

Univ Zagreb Dept Phys HR-10000 Zagreb Croatia;

Johannes Gutenberg Univ Mainz Inst Nucl Phys D-55099 Mainz Germany;

Lanzhou Univ Nucl Phys Inst Lanzhou 730000 Gansu Peoples R China;

Florida Int Univ Dept Phys Miami FL 27411 USA;

James Madison Univ Dept Phys &

Astron Harrisonburg VA 22807 USA;

Florida Int Univ Dept Phys Miami FL 27411 USA;

Mississippi State Univ Mississippi State MS 39762 USA;

Tohoku Univ Grad Sch Sci Sendai Miyagi 9808578 Japan;

Univ Zagreb Dept Phys HR-10000 Zagreb Croatia;

Johannes Gutenberg Univ Mainz Inst Nucl Phys D-55099 Mainz Germany;

Lanzhou Univ Nucl Phys Inst Lanzhou 730000 Gansu Peoples R China;

Florida Int Univ Dept Phys Miami FL 27411 USA;

Univ Ana G Mendez Div Ciencias &

Tecnol San Juan PR 00926 USA;

Virginia Mil Inst Dept Phys &

Astron Lexington VA 24450 USA;

Thomas Jefferson Natl Accelerator Facil JLab Newport News VA 23606 USA;

Univ Zagreb Dept Phys HR-10000 Zagreb Croatia;

Tohoku Univ Grad Sch Sci Sendai Miyagi 9808578 Japan;

AI Alikhanyan Natl Sci Lab Yerevan 0036 Armenia;

Hampton Univ Dept Phys Hampton VA 23668 USA;

Tohoku Univ Grad Sch Sci Sendai Miyagi 9808578 Japan;

Tohoku Univ Grad Sch Sci Sendai Miyagi 9808578 Japan;

Christopher Newport Univ Dept Phys Comp Sci &

Engn Newport News VA 23606 USA;

Thomas Jefferson Natl Accelerator Facil JLab Newport News VA 23606 USA;

Xavier Univ Louisiana Dept Phys New Orleans LA 70125 USA;

Thomas Jefferson Natl Accelerator Facil JLab Newport News VA 23606 USA;

Tohoku Univ Grad Sch Sci Sendai Miyagi 9808578 Japan;

Hampton Univ Dept Phys Hampton VA 23668 USA;

Tohoku Univ Grad Sch Sci Sendai Miyagi 9808578 Japan;

Tohoku Univ Grad Sch Sci Sendai Miyagi 9808578 Japan;

Hampton Univ Dept Phys Hampton VA 23668 USA;

AI Alikhanyan Natl Sci Lab Yerevan 0036 Armenia;

Hampton Univ Dept Phys Hampton VA 23668 USA;

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Spectroscopy of A=9 hyperlithium with the (e, e ' K+) reaction

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