Selective population and neutron decay of an excited state of 23O

被引:69
作者
Schiller, A. [1 ]
Frank, N.
Baumann, T.
Bazin, D.
Brown, B. A.
Brown, J.
DeYoung, P. A.
Finck, J. E.
Gade, A.
Hinnefeld, J.
Howes, R.
Lecouey, J. -L.
Luther, B.
Peters, W. A.
Scheit, H.
Thoennessen, M.
Tostevin, J. A.
机构
[1] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA
[2] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA
[3] Concordia Coll, Dept Phys, Moorhead, MN 56562 USA
[4] Wabash Coll, Dept Phys, Crawfordsville, IN 47933 USA
[5] Hope Coll, Dept Phys, Holland, MI 49423 USA
[6] Cent Michigan Univ, Dept Phys, Mt Pleasant, MI 48859 USA
[7] Indiana Univ, Dept Phys & Astron, South Bend, IN 46634 USA
[8] Marquette Univ, Dept Phys, Milwaukee, WI 53201 USA
[9] Univ Surrey, Sch Elect & Phys Sci, Guildford GU2 7XH, Surrey, England
基金
英国工程与自然科学研究理事会;
关键词
D O I
10.1103/PhysRevLett.99.112501
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We have observed a resonance in neutron-fragment coincidence measurements that is presumably the first excited state of O-23 at 2.8(1) MeV excitation energy which decays into the ground state of O-22. This interpretation is consistent with theory. The reaction mechanism supports the assignment of the observed state as the 5/2(+) hole state. This assignment and the recently observed 3/2(+) particle state advance the understanding of O-23.
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页数:4
相关论文
共 25 条
[11]   Coulomb and nuclear breakup of a halo nucleus 11Be -: art. no. 054606 [J].
Fukuda, N ;
Nakamura, T ;
Aoi, N ;
Imai, N ;
Ishihara, M ;
Kobayashi, T ;
Iwasaki, H ;
Kubo, T ;
Mengoni, A ;
Notani, M ;
Otsu, H ;
Sakurai, H ;
Shimoura, S ;
Teranishi, T ;
Watanabe, YX ;
Yoneda, K .
PHYSICAL REVIEW C, 2004, 70 (05) :054606-1
[12]   MoNA - The Modular Neutron Array [J].
Luther, B ;
Baumann, T ;
Thoennessen, M ;
Brown, J ;
DeYoung, P ;
Finck, J ;
Hinnefeld, J ;
Howes, R ;
Kemper, K ;
Pancella, P ;
Peaslee, G ;
Rogers, W ;
Tabor, S .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2003, 505 (1-2) :33-35
[13]   Two-neutron interferometry as a probe of the nuclear halo [J].
Marqués, FM ;
Labiche, M ;
Angélique, JC ;
Axelsson, L ;
Benoit, B ;
Bergmann, UC ;
Borge, MJG ;
Catford, WN ;
Chappell, SPG ;
Clarke, NM ;
Costa, G ;
Curtis, N ;
D'Arrigo, A ;
Santos, FD ;
Brennand, ED ;
Dorvaux, O ;
Freer, M ;
Fulton, BR ;
Giardina, G ;
Gregori, C ;
Grévy, S ;
Guillemaud-Mueller, D ;
Hanappe, F ;
Heusch, B ;
Jonson, B ;
Le Brun, C ;
Leenhardt, S ;
Lewitowicz, M ;
López, MJ ;
Markenroth, K ;
Motta, M ;
Mueller, AC ;
Nilsson, T ;
Ninane, A ;
Nyman, G ;
Piqueras, I ;
Riisager, K ;
Saint Laurent, MG ;
Sarazin, F ;
Singer, SM ;
Sorlin, O ;
Stuttgé, L .
PHYSICS LETTERS B, 2000, 476 (3-4) :219-225
[14]   Commissioning the A1900 projectile fragment separator [J].
Morrissey, DJ ;
Sherrill, BM ;
Steiner, M ;
Stolz, A ;
Wiedenhoever, I .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2003, 204 :90-96
[15]   Evolution of nuclear shells due to the tensor force [J].
Otsuka, T ;
Suzuki, T ;
Fujimoto, R ;
Grawe, H ;
Akaishi, Y .
PHYSICAL REVIEW LETTERS, 2005, 95 (23)
[16]   Magic numbers in exotic nuclei and spin-isospin properties of the NN interaction -: art. no. 082502 [J].
Otsuka, T ;
Fujimoto, R ;
Utsuno, Y ;
Brown, BA ;
Honma, M ;
Mizusaki, T .
PHYSICAL REVIEW LETTERS, 2001, 87 (08) :825021-825024
[17]   Mean field with tensor force and shell structure of exotic nuclei [J].
Otsuka, Takaharu ;
Matsuo, Toshiaki ;
Abe, Daisuke .
PHYSICAL REVIEW LETTERS, 2006, 97 (16)
[18]   New magic number, N=16, near the neutron drip line [J].
Ozawa, A ;
Kobayashi, T ;
Suzuki, T ;
Yoshida, K ;
Tanihata, I .
PHYSICAL REVIEW LETTERS, 2000, 84 (24) :5493-5495
[19]   Structure of 12Be:: Intruder d-wave strength at N=8 -: art. no. 032502 [J].
Pain, SD ;
Catford, WN ;
Orr, NA ;
Angélique, JC ;
Ashwood, NI ;
Bouchat, V ;
Clarke, NM ;
Curtis, N ;
Freer, M ;
Fulton, BR ;
Hanappe, F ;
Labiche, M ;
Lecouey, JL ;
Lemmon, RC ;
Mahboub, D ;
Ninane, A ;
Normand, G ;
Soic, N ;
Stuttge, L ;
Timis, CN ;
Tostevin, JA ;
Winfield, JS ;
Ziman, V .
PHYSICAL REVIEW LETTERS, 2006, 96 (03)
[20]  
Pain SD, 2005, EUR PHYS J A, V25, P349, DOI 10.1140/epjad/i2005-06-186-9