Structure of the unbound <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow></mrow><mrow><mn>11</mn></mrow></msup></mrow><mi mathvariant="normal">N</mi></math></span> nucleus by the <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mo>(</mo></mrow><mrow><mn>3</mn></mrow></msup></mrow><mi mathvariant="normal">He</mi><mrow><msup><mrow><mo>,</mo></mrow><mrow><mn>6</mn></mrow></msup></mrow><mi mathvariant="normal">He</mi><mo>)</mo></math></span> reaction

V. Guimarães; S. Kubono; F. C. Barker; M. Hosaka; S. C. Jeong; I. Katayama; T. Miyachi; T. Nomura; M. H. Tanaka; Y. Fuchi; H. Kawashima; S. Kato; C. C. Yun; K. Ito; H. Orihara; T. Terakawa; T. Kishida; Y. Pu; S. Hamada; M. Hirai; H. Miyatake

doi:10.1103/PhysRevC.67.064601

Structure of the unbound $^{11} N$ nucleus by the $(^{3} He,^{6} He)$ reaction

V. Guimarães, S. Kubono, F. C. Barker, M. Hosaka, S. C. Jeong, I. Katayama, T. Miyachi, T. Nomura, M. H. Tanaka, Y. Fuchi, H. Kawashima, S. Kato, C. C. Yun, K. Ito, H. Orihara, T. Terakawa, T. Kishida, Y. Pu, S. Hamada, M. Hirai, and H. Miyatake

Phys. Rev. C 67, 064601 – Published 3 June 2003

Abstract

The ground state and low-lying levels of the unbound $^{11} N$ nucleus were investigated with the three-neutron pickup reaction $^{14} N (^{3} He,^{6} He)^{11} N .$ The energies and widths of these, experimentally observed, levels are compared with other measurements and calculations. Angular distributions were measured for the first time for this reaction. The distorted-wave Born approximation analysis confirms the spin assignments for the lowest levels.

Received 11 June 2002

DOI:https://doi.org/10.1103/PhysRevC.67.064601

Authors & Affiliations

V. Guimarães¹, S. Kubono², F. C. Barker³, M. Hosaka⁴, S. C. Jeong⁵, I. Katayama⁵, T. Miyachi², T. Nomura⁵, M. H. Tanaka⁵, Y. Fuchi⁵, H. Kawashima⁵, S. Kato⁶, C. C. Yun⁷, K. Ito⁷, H. Orihara⁷, T. Terakawa⁷, T. Kishida⁸, Y. Pu⁸, S. Hamada⁹, M. Hirai¹⁰, and H. Miyatake⁵

¹Instituto de Física, Universidade de São Paulo, P.O. Box 66318, 05389-970 São Paulo, SP, Brazil
²Center for Nuclear Study, University of Tokyo, RIKEN Campus, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
³Department of Theoretical Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra ACT 0200, Australia
⁴Institute for Molecular Science, Okazaki 444, Japan
⁵Institute of Particle and Nuclear Studies, KEK, Tsukuba 305-0801, Japan
⁶Physics Department, Yamagata University, Yamagata 990-0021, Japan
⁷Cyclotron and Radioisotope Center, Tohoku University, Aoba, Miyagi 980-8578, Japan
⁸RIKEN, Wako, Saitama 351-0198, Japan
⁹JAERI, Tokai, Ibaraki 319-1106, Japan
¹⁰Department of Physics, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan

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Vol. 67, Iss. 6 — June 2003

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