Search for an isomeric state in 19C

Ritu Kanungo; Z. Elekes; H. Baba; Zs Dombrádi; Zs Fülöp; J. Gibelin; Á Horváth; Y. Ichikawa; E. Ideguchi; N. Iwasa; H. Iwasaki; S. Kawai; Y. Kondo; T. Motobayashi; M. Notani; T. Ohnishi; A. Ozawa; H. Sakurai; S. Shimoura; E. Takeshita; S. Takeuchi; I. Tanihata; Y. Togano; C. Wu; Y. Yamaguchi; Y. Yanagisawa; A. Yoshida; K. Yoshida

doi:10.1016/j.nuclphysa.2005.04.015

Search for an isomeric state in ¹⁹C

Ritu Kanungo, Z. Elekes, H. Baba, Zs Dombrádi, Zs Fülöp, J. Gibelin, Á Horváth, Y. Ichikawa, E. Ideguchi, N. Iwasa, H. Iwasaki, S. Kawai, Y. Kondo, T. Motobayashi, M. Notani, T. Ohnishi, A. Ozawa, H. Sakurai, S. Shimoura, E. TakeshitaS. Takeuchi, I. Tanihata, Y. Togano, C. Wu, Y. Yamaguchi, Y. Yanagisawa, A. Yoshida, K. Yoshida

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Abstract

A search for an isomeric state in the neutron-rich nucleus ¹⁹C is reported. The existence of an isomer in the nucleus is predicted by shell model calculations which also predicts the ground-state of the nucleus to be 1/2⁺. An isomeric transition is however not observed in the present investigation. An estimation of upper limit of isomer ratio in the beam is discussed. Furthermore, the non-observation of an isomer includes the possibility of ¹⁹C having a different ground state spin. The ¹⁷C and ¹⁷B nuclei were also investigated for delayed gamma transitions but do not exhibit any isomeric transition.

Original language	English
Pages (from-to)	315-328
Number of pages	14
Journal	Nuclear Physics A
Volume	757
Issue number	3-4
DOIs	https://doi.org/10.1016/j.nuclphysa.2005.04.015
Publication status	Published - Aug 22 2005
Externally published	Yes

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1016/j.nuclphysa.2005.04.015

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Kanungo, R., Elekes, Z., Baba, H., Dombrádi, Z., Fülöp, Z., Gibelin, J., Horváth, Á., Ichikawa, Y., Ideguchi, E., Iwasa, N., Iwasaki, H., Kawai, S., Kondo, Y., Motobayashi, T., Notani, M., Ohnishi, T., Ozawa, A., Sakurai, H., Shimoura, S., ... Yoshida, K. (2005). Search for an isomeric state in ¹⁹C. Nuclear Physics A, 757(3-4), 315-328. https://doi.org/10.1016/j.nuclphysa.2005.04.015

Kanungo, R, Elekes, Z, Baba, H, Dombrádi, Z, Fülöp, Z, Gibelin, J, Horváth, Á, Ichikawa, Y, Ideguchi, E, Iwasa, N, Iwasaki, H, Kawai, S, Kondo, Y, Motobayashi, T, Notani, M, Ohnishi, T, Ozawa, A, Sakurai, H, Shimoura, S, Takeshita, E, Takeuchi, S, Tanihata, I, Togano, Y, Wu, C, Yamaguchi, Y, Yanagisawa, Y, Yoshida, A & Yoshida, K 2005, 'Search for an isomeric state in ¹⁹C', Nuclear Physics A, vol. 757, no. 3-4, pp. 315-328. https://doi.org/10.1016/j.nuclphysa.2005.04.015

@article{126ba79909134134a233ae7ce0b74fc1,

title = "Search for an isomeric state in 19C",

abstract = "A search for an isomeric state in the neutron-rich nucleus 19C is reported. The existence of an isomer in the nucleus is predicted by shell model calculations which also predicts the ground-state of the nucleus to be 1/2+. An isomeric transition is however not observed in the present investigation. An estimation of upper limit of isomer ratio in the beam is discussed. Furthermore, the non-observation of an isomer includes the possibility of 19C having a different ground state spin. The 17C and 17B nuclei were also investigated for delayed gamma transitions but do not exhibit any isomeric transition.",

author = "Ritu Kanungo and Z. Elekes and H. Baba and Zs Dombr{\'a}di and Zs F{\"u}l{\"o}p and J. Gibelin and {\'A} Horv{\'a}th and Y. Ichikawa and E. Ideguchi and N. Iwasa and H. Iwasaki and S. Kawai and Y. Kondo and T. Motobayashi and M. Notani and T. Ohnishi and A. Ozawa and H. Sakurai and S. Shimoura and E. Takeshita and S. Takeuchi and I. Tanihata and Y. Togano and C. Wu and Y. Yamaguchi and Y. Yanagisawa and A. Yoshida and K. Yoshida",

note = "Funding Information: The authors gratefully acknowledge the support of the cyclotron staff of RRC for a smooth accelerator operation. One of authors (Z.E.) is grateful for the JSPS Fellowship Program in RIKEN and the Bolyai grant in Hungary. The European authors thank the kind hospitality and support from RIKEN. The present work was partly supported by the Grant-in-Aid for Scientific Research (No. 1520417) by the Ministry of Education, Culture, Sports, Science and Technology and by OTKA T42733, T46901 and T032113.",

year = "2005",

month = aug,

day = "22",

doi = "10.1016/j.nuclphysa.2005.04.015",

language = "English",

volume = "757",

pages = "315--328",

journal = "Nuclear Physics A",

issn = "0375-9474",

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number = "3-4",

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T1 - Search for an isomeric state in 19C

AU - Kanungo, Ritu

AU - Elekes, Z.

AU - Baba, H.

AU - Dombrádi, Zs

AU - Fülöp, Zs

AU - Gibelin, J.

AU - Horváth, Á

AU - Ichikawa, Y.

AU - Ideguchi, E.

AU - Iwasa, N.

AU - Iwasaki, H.

AU - Kawai, S.

AU - Kondo, Y.

AU - Motobayashi, T.

AU - Notani, M.

AU - Ohnishi, T.

AU - Ozawa, A.

AU - Sakurai, H.

AU - Shimoura, S.

AU - Takeshita, E.

AU - Takeuchi, S.

AU - Tanihata, I.

AU - Togano, Y.

AU - Wu, C.

AU - Yamaguchi, Y.

AU - Yanagisawa, Y.

AU - Yoshida, A.

AU - Yoshida, K.

N1 - Funding Information: The authors gratefully acknowledge the support of the cyclotron staff of RRC for a smooth accelerator operation. One of authors (Z.E.) is grateful for the JSPS Fellowship Program in RIKEN and the Bolyai grant in Hungary. The European authors thank the kind hospitality and support from RIKEN. The present work was partly supported by the Grant-in-Aid for Scientific Research (No. 1520417) by the Ministry of Education, Culture, Sports, Science and Technology and by OTKA T42733, T46901 and T032113.

PY - 2005/8/22

Y1 - 2005/8/22

N2 - A search for an isomeric state in the neutron-rich nucleus 19C is reported. The existence of an isomer in the nucleus is predicted by shell model calculations which also predicts the ground-state of the nucleus to be 1/2+. An isomeric transition is however not observed in the present investigation. An estimation of upper limit of isomer ratio in the beam is discussed. Furthermore, the non-observation of an isomer includes the possibility of 19C having a different ground state spin. The 17C and 17B nuclei were also investigated for delayed gamma transitions but do not exhibit any isomeric transition.

AB - A search for an isomeric state in the neutron-rich nucleus 19C is reported. The existence of an isomer in the nucleus is predicted by shell model calculations which also predicts the ground-state of the nucleus to be 1/2+. An isomeric transition is however not observed in the present investigation. An estimation of upper limit of isomer ratio in the beam is discussed. Furthermore, the non-observation of an isomer includes the possibility of 19C having a different ground state spin. The 17C and 17B nuclei were also investigated for delayed gamma transitions but do not exhibit any isomeric transition.

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VL - 757

SP - 315

EP - 328

JO - Nuclear Physics A

JF - Nuclear Physics A

IS - 3-4

ER -

Search for an isomeric state in ¹⁹C

Abstract

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