Experimental investigation of a linear-chain structure in the nucleus 14C
It is a well-known fact that a cluster of nucleons can be formed in the interior of an atomic nucleus, and such clusters may occupy molecular-like orbitals, showing characteristics similar to normal molecules consisting of atoms. Chemical molecules having a linear alignment are commonly seen in natu...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2017-03-01
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| Series: | Physics Letters B |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269316307961 |
| _version_ | 1818694501200297984 |
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| author | H. Yamaguchi D. Kahl S. Hayakawa Y. Sakaguchi K. Abe T. Nakao T. Suhara N. Iwasa A. Kim D.H. Kim S.M. Cha M.S. Kwag J.H. Lee E.J. Lee K.Y. Chae Y. Wakabayashi N. Imai N. Kitamura P. Lee J.Y. Moon K.B. Lee C. Akers H.S. Jung N.N. Duy L.H. Khiem C.S. Lee |
| author_facet | H. Yamaguchi D. Kahl S. Hayakawa Y. Sakaguchi K. Abe T. Nakao T. Suhara N. Iwasa A. Kim D.H. Kim S.M. Cha M.S. Kwag J.H. Lee E.J. Lee K.Y. Chae Y. Wakabayashi N. Imai N. Kitamura P. Lee J.Y. Moon K.B. Lee C. Akers H.S. Jung N.N. Duy L.H. Khiem C.S. Lee |
| author_sort | H. Yamaguchi |
| collection | DOAJ |
| description | It is a well-known fact that a cluster of nucleons can be formed in the interior of an atomic nucleus, and such clusters may occupy molecular-like orbitals, showing characteristics similar to normal molecules consisting of atoms. Chemical molecules having a linear alignment are commonly seen in nature, such as carbon dioxide. A similar linear alignment of the nuclear clusters, referred to as linear-chain cluster state (LCCS), has been studied since the 1950s, however, up to now there is no clear experimental evidence demonstrating the existence of such a state. Recently, it was proposed that an excess of neutrons may offer just such a stabilizing mechanism, revitalizing interest in the nuclear LCCS, specifically with predictions for their emergence in neutron-rich carbon isotopes. Here we present the experimental observation of α-cluster states in the radioactive 14C nucleus. Using the Be10+α resonant scattering method with a radioactive beam, we observed a series of levels which completely agree with theoretically predicted levels having an explicit linear-chain cluster configuration. We regard this as the first strong indication of the linear-chain clustered nucleus. |
| first_indexed | 2024-12-17T13:30:35Z |
| format | Article |
| id | doaj.art-e9d2d47fd0474ca0b36d12d7967f5ccd |
| institution | Directory Open Access Journal |
| issn | 0370-2693 1873-2445 |
| language | English |
| last_indexed | 2024-12-17T13:30:35Z |
| publishDate | 2017-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-e9d2d47fd0474ca0b36d12d7967f5ccd2022-12-21T21:46:35ZengElsevierPhysics Letters B0370-26931873-24452017-03-01766C111610.1016/j.physletb.2016.12.050Experimental investigation of a linear-chain structure in the nucleus 14CH. Yamaguchi0D. Kahl1S. Hayakawa2Y. Sakaguchi3K. Abe4T. Nakao5T. Suhara6N. Iwasa7A. Kim8D.H. Kim9S.M. Cha10M.S. Kwag11J.H. Lee12E.J. Lee13K.Y. Chae14Y. Wakabayashi15N. Imai16N. Kitamura17P. Lee18J.Y. Moon19K.B. Lee20C. Akers21H.S. Jung22N.N. Duy23L.H. Khiem24C.S. Lee25Center for Nuclear Study (CNS), University of Tokyo, RIKEN campus, 2-1 Hirosawa, Wako, Saitama 351-0198, JapanCenter for Nuclear Study (CNS), University of Tokyo, RIKEN campus, 2-1 Hirosawa, Wako, Saitama 351-0198, JapanCenter for Nuclear Study (CNS), University of Tokyo, RIKEN campus, 2-1 Hirosawa, Wako, Saitama 351-0198, JapanCenter for Nuclear Study (CNS), University of Tokyo, RIKEN campus, 2-1 Hirosawa, Wako, Saitama 351-0198, JapanCenter for Nuclear Study (CNS), University of Tokyo, RIKEN campus, 2-1 Hirosawa, Wako, Saitama 351-0198, JapanCenter for Nuclear Study (CNS), University of Tokyo, RIKEN campus, 2-1 Hirosawa, Wako, Saitama 351-0198, JapanMatsue College of Technology, Matsue, Shimane 690-8518, JapanDepartment of Physics, Tohoku University, Aoba, Sendai, Miyagi 980-8578, JapanDepartment of Physics, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, Republic of KoreaDepartment of Physics, Ewha Womans University, Seoul 120-750, Republic of KoreaDepartment of Physics, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, Republic of KoreaDepartment of Physics, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, Republic of KoreaDepartment of Physics, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, Republic of KoreaDepartment of Physics, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, Republic of KoreaDepartment of Physics, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, Republic of KoreaThe Institute of Physical and Chemical Research (RIKEN), 2-1 Hirosawa, Wako, Saitama 351-0198, JapanCenter for Nuclear Study (CNS), University of Tokyo, RIKEN campus, 2-1 Hirosawa, Wako, Saitama 351-0198, JapanCenter for Nuclear Study (CNS), University of Tokyo, RIKEN campus, 2-1 Hirosawa, Wako, Saitama 351-0198, JapanDepartment of Physics, Chung-Ang University, Seoul 156-756, Republic of KoreaInstitute for Basic Science, 70, Yuseong-daero 1689-gil, Yuseong-gu, Daejeon 305-811, Republic of KoreaInstitute for Basic Science, 70, Yuseong-daero 1689-gil, Yuseong-gu, Daejeon 305-811, Republic of KoreaInstitute for Basic Science, 70, Yuseong-daero 1689-gil, Yuseong-gu, Daejeon 305-811, Republic of KoreaWako Nuclear Science Center (WNSC), KEK, 2-1 Hirosawa, Wako, Saitama 351-0198, JapanInstitute of Physics, Vietnam Academy of Science and Technology, 10 Dao Tan, Ba Dinh, Ha Noi, Viet NamInstitute of Physics, Vietnam Academy of Science and Technology, 10 Dao Tan, Ba Dinh, Ha Noi, Viet NamDepartment of Physics, Chung-Ang University, Seoul 156-756, Republic of KoreaIt is a well-known fact that a cluster of nucleons can be formed in the interior of an atomic nucleus, and such clusters may occupy molecular-like orbitals, showing characteristics similar to normal molecules consisting of atoms. Chemical molecules having a linear alignment are commonly seen in nature, such as carbon dioxide. A similar linear alignment of the nuclear clusters, referred to as linear-chain cluster state (LCCS), has been studied since the 1950s, however, up to now there is no clear experimental evidence demonstrating the existence of such a state. Recently, it was proposed that an excess of neutrons may offer just such a stabilizing mechanism, revitalizing interest in the nuclear LCCS, specifically with predictions for their emergence in neutron-rich carbon isotopes. Here we present the experimental observation of α-cluster states in the radioactive 14C nucleus. Using the Be10+α resonant scattering method with a radioactive beam, we observed a series of levels which completely agree with theoretically predicted levels having an explicit linear-chain cluster configuration. We regard this as the first strong indication of the linear-chain clustered nucleus.http://www.sciencedirect.com/science/article/pii/S0370269316307961Nuclear clusterLinear-chain cluster stateResonant elastic scatteringThick-target method in inverse kinematicsRI beam |
| spellingShingle | H. Yamaguchi D. Kahl S. Hayakawa Y. Sakaguchi K. Abe T. Nakao T. Suhara N. Iwasa A. Kim D.H. Kim S.M. Cha M.S. Kwag J.H. Lee E.J. Lee K.Y. Chae Y. Wakabayashi N. Imai N. Kitamura P. Lee J.Y. Moon K.B. Lee C. Akers H.S. Jung N.N. Duy L.H. Khiem C.S. Lee Experimental investigation of a linear-chain structure in the nucleus 14C Physics Letters B Nuclear cluster Linear-chain cluster state Resonant elastic scattering Thick-target method in inverse kinematics RI beam |
| title | Experimental investigation of a linear-chain structure in the nucleus 14C |
| title_full | Experimental investigation of a linear-chain structure in the nucleus 14C |
| title_fullStr | Experimental investigation of a linear-chain structure in the nucleus 14C |
| title_full_unstemmed | Experimental investigation of a linear-chain structure in the nucleus 14C |
| title_short | Experimental investigation of a linear-chain structure in the nucleus 14C |
| title_sort | experimental investigation of a linear chain structure in the nucleus 14c |
| topic | Nuclear cluster Linear-chain cluster state Resonant elastic scattering Thick-target method in inverse kinematics RI beam |
| url | http://www.sciencedirect.com/science/article/pii/S0370269316307961 |
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