Shell structure of the neutron-rich isotopes Co 69,71,73

T. Lokotko; S. Leblond; J. Lee; P. Doornenbal; A. Obertelli; A. Poves; F. Nowacki; K. Ogata; K. Yoshida; G. Authelet; H. Baba; D. Calvet; F. Château; S. Chen; A. Corsi; A. Delbart; J. M. Gheller; A. Gillibert; T. Isobe; V. Lapoux; M. Matsushita; S. Momiyama; T. Motobayashi; M. Niikura; H. Otsu; C. Péron; A. Peyaud; E. C. Pollacco; J. Y. Roussé; H. Sakurai; C. Santamaria; Z. Y. Xu; M. Sasano; Y. Shiga; S. Takeuchi; R. Taniuchi; T. Uesaka; H. Wang; V. Werner; F. Browne; L. X. Chung; Zs Dombradi; S. Franchoo; F. Giacoppo; A. Gottardo; K. Hadynska-Klek; Z. Korkulu; S. Koyama; Y. Kubota; M. Lettmann; C. Louchart; R. Lozeva; K. Matsui; T. Miyazaki; S. Nishimura; L. Olivier; S. Ota; Z. Patel; E. Sahin; C. Shand; P. A. Söderström; I. Stefan; D. Steppenbeck; T. Sumikama; D. Suzuki; Zs Vajta; J. Wu

doi:10.1103/PhysRevC.101.034314

Shell structure of the neutron-rich isotopes Co 69,71,73

T. Lokotko, S. Leblond, J. Lee, P. Doornenbal, A. Obertelli, A. Poves, F. Nowacki, K. Ogata, K. Yoshida, G. Authelet, H. Baba, D. Calvet, F. Château, S. Chen, A. Corsi, A. Delbart, J. M. Gheller, A. Gillibert, T. Isobe, V. LapouxM. Matsushita, S. Momiyama, T. Motobayashi, M. Niikura, H. Otsu, C. Péron, A. Peyaud, E. C. Pollacco, J. Y. Roussé, H. Sakurai, C. Santamaria, Z. Y. Xu, M. Sasano, Y. Shiga, S. Takeuchi, R. Taniuchi, T. Uesaka, H. Wang, V. Werner, F. Browne, L. X. Chung, Zs Dombradi, S. Franchoo, F. Giacoppo, A. Gottardo, K. Hadynska-Klek, Z. Korkulu, S. Koyama, Y. Kubota, M. Lettmann, C. Louchart, R. Lozeva, K. Matsui, T. Miyazaki, S. Nishimura, L. Olivier, S. Ota, Z. Patel, E. Sahin, C. Shand, P. A. Söderström, I. Stefan, D. Steppenbeck, T. Sumikama, D. Suzuki, Zs Vajta, J. Wu

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Abstract

The structures of the neutron-rich Co69,71,73 isotopes were investigated via (p,2p) knockout reactions at the Radioactive Isotope Beam Factory, RIKEN. Isotopes of interest were studied using the DALI2 γ-ray detector array combined with the MINOS target and tracker system. Level schemes were reconstructed using the γ-γ coincidence technique, with tentative spin-parity assignments based on the measured inclusive and exclusive cross sections. Comparison with shell-model calculations using the Lenzi-Nowacki-Poves-Sieja LNPS and PFSDG-U interactions suggests coexistence of spherical and deformed shapes at low excitation energies in the Co69,71,73 isotopes. The distorted-wave impulse approximation (DWIA) framework was used to calculate the single-particle cross sections. These values were compared with the experimental findings.

Original language	English
Article number	034314
Journal	Physical Review C
Volume	101
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevC.101.034314
Publication status	Published - Mar 2020
Externally published	Yes

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1103/PhysRevC.101.034314

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Lokotko, T., Leblond, S., Lee, J., Doornenbal, P., Obertelli, A., Poves, A., Nowacki, F., Ogata, K., Yoshida, K., Authelet, G., Baba, H., Calvet, D., Château, F., Chen, S., Corsi, A., Delbart, A., Gheller, J. M., Gillibert, A., Isobe, T., ... Wu, J. (2020). Shell structure of the neutron-rich isotopes Co 69,71,73. Physical Review C, 101(3), [034314]. https://doi.org/10.1103/PhysRevC.101.034314

Lokotko, T, Leblond, S, Lee, J, Doornenbal, P, Obertelli, A, Poves, A, Nowacki, F, Ogata, K, Yoshida, K, Authelet, G, Baba, H, Calvet, D, Château, F, Chen, S, Corsi, A, Delbart, A, Gheller, JM, Gillibert, A, Isobe, T, Lapoux, V, Matsushita, M, Momiyama, S, Motobayashi, T, Niikura, M, Otsu, H, Péron, C, Peyaud, A, Pollacco, EC, Roussé, JY, Sakurai, H, Santamaria, C, Xu, ZY, Sasano, M, Shiga, Y, Takeuchi, S, Taniuchi, R, Uesaka, T, Wang, H, Werner, V, Browne, F, Chung, LX, Dombradi, Z, Franchoo, S, Giacoppo, F, Gottardo, A, Hadynska-Klek, K, Korkulu, Z, Koyama, S, Kubota, Y, Lettmann, M, Louchart, C, Lozeva, R, Matsui, K, Miyazaki, T, Nishimura, S, Olivier, L, Ota, S, Patel, Z, Sahin, E, Shand, C, Söderström, PA, Stefan, I, Steppenbeck, D, Sumikama, T, Suzuki, D, Vajta, Z & Wu, J 2020, 'Shell structure of the neutron-rich isotopes Co 69,71,73', Physical Review C, vol. 101, no. 3, 034314. https://doi.org/10.1103/PhysRevC.101.034314

@article{275c9172c997466eafea16a436b708ee,

title = "Shell structure of the neutron-rich isotopes Co 69,71,73",

abstract = "The structures of the neutron-rich Co69,71,73 isotopes were investigated via (p,2p) knockout reactions at the Radioactive Isotope Beam Factory, RIKEN. Isotopes of interest were studied using the DALI2 γ-ray detector array combined with the MINOS target and tracker system. Level schemes were reconstructed using the γ-γ coincidence technique, with tentative spin-parity assignments based on the measured inclusive and exclusive cross sections. Comparison with shell-model calculations using the Lenzi-Nowacki-Poves-Sieja LNPS and PFSDG-U interactions suggests coexistence of spherical and deformed shapes at low excitation energies in the Co69,71,73 isotopes. The distorted-wave impulse approximation (DWIA) framework was used to calculate the single-particle cross sections. These values were compared with the experimental findings.",

author = "T. Lokotko and S. Leblond and J. Lee and P. Doornenbal and A. Obertelli and A. Poves and F. Nowacki and K. Ogata and K. Yoshida and G. Authelet and H. Baba and D. Calvet and F. Ch{\^a}teau and S. Chen and A. Corsi and A. Delbart and Gheller, {J. M.} and A. Gillibert and T. Isobe and V. Lapoux and M. Matsushita and S. Momiyama and T. Motobayashi and M. Niikura and H. Otsu and C. P{\'e}ron and A. Peyaud and Pollacco, {E. C.} and Rouss{\'e}, {J. Y.} and H. Sakurai and C. Santamaria and Xu, {Z. Y.} and M. Sasano and Y. Shiga and S. Takeuchi and R. Taniuchi and T. Uesaka and H. Wang and V. Werner and F. Browne and Chung, {L. X.} and Zs Dombradi and S. Franchoo and F. Giacoppo and A. Gottardo and K. Hadynska-Klek and Z. Korkulu and S. Koyama and Y. Kubota and M. Lettmann and C. Louchart and R. Lozeva and K. Matsui and T. Miyazaki and S. Nishimura and L. Olivier and S. Ota and Z. Patel and E. Sahin and C. Shand and S{\"o}derstr{\"o}m, {P. A.} and I. Stefan and D. Steppenbeck and T. Sumikama and D. Suzuki and Zs Vajta and J. Wu",

note = "Funding Information: The authors are thankful to the RIBF and RIKEN accelerator teams for stable operation of the uranium primary beam during the experiment and the production of the secondary beams. We acknowledge the support by the University of Hong Kong within RGC Early Career Scheme (ECS) (Contract No. 27303915). The development of MINOS and the core MINOS team have been supported by the European Research Council through the ERC Grant No. MINOS-258567. A.O. has been supported by the JSPS long-term fellowship L-13520 at the RIKEN Nishina Center. C.S. has been supported by the IPA program at the RIKEN Nishina Center. A.P. has been supported by the Ministerio de Ciencia, Innovacion y Universidades (Spain), Severo Ochoa Prog. SEV-2016-0597 and Grant No. PGC-2018-94583. L.X.C would like to thank MOST for its support through the Physics Development Program Grant No. {\D}T{\D}LCN.25/18. R.T. has been supported by the JSPS Grant-in-Aid for JSPS Research Fellows JP14J08718. K.O. acknowledges the support by Grant-in-Aid for Scientific Research JP16K05352. Publisher Copyright: {\textcopyright} 2020 American Physical Society.",

year = "2020",

month = mar,

doi = "10.1103/PhysRevC.101.034314",

language = "English",

volume = "101",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "3",

}

TY - JOUR

T1 - Shell structure of the neutron-rich isotopes Co 69,71,73

AU - Lokotko, T.

AU - Leblond, S.

AU - Lee, J.

AU - Doornenbal, P.

AU - Obertelli, A.

AU - Poves, A.

AU - Nowacki, F.

AU - Ogata, K.

AU - Yoshida, K.

AU - Authelet, G.

AU - Baba, H.

AU - Calvet, D.

AU - Château, F.

AU - Chen, S.

AU - Corsi, A.

AU - Delbart, A.

AU - Gheller, J. M.

AU - Gillibert, A.

AU - Isobe, T.

AU - Lapoux, V.

AU - Matsushita, M.

AU - Momiyama, S.

AU - Motobayashi, T.

AU - Niikura, M.

AU - Otsu, H.

AU - Péron, C.

AU - Peyaud, A.

AU - Pollacco, E. C.

AU - Roussé, J. Y.

AU - Sakurai, H.

AU - Santamaria, C.

AU - Xu, Z. Y.

AU - Sasano, M.

AU - Shiga, Y.

AU - Takeuchi, S.

AU - Taniuchi, R.

AU - Uesaka, T.

AU - Wang, H.

AU - Werner, V.

AU - Browne, F.

AU - Chung, L. X.

AU - Dombradi, Zs

AU - Franchoo, S.

AU - Giacoppo, F.

AU - Gottardo, A.

AU - Hadynska-Klek, K.

AU - Korkulu, Z.

AU - Koyama, S.

AU - Kubota, Y.

AU - Lettmann, M.

AU - Louchart, C.

AU - Lozeva, R.

AU - Matsui, K.

AU - Miyazaki, T.

AU - Nishimura, S.

AU - Olivier, L.

AU - Ota, S.

AU - Patel, Z.

AU - Sahin, E.

AU - Shand, C.

AU - Söderström, P. A.

AU - Stefan, I.

AU - Steppenbeck, D.

AU - Sumikama, T.

AU - Suzuki, D.

AU - Vajta, Zs

AU - Wu, J.

N1 - Funding Information: The authors are thankful to the RIBF and RIKEN accelerator teams for stable operation of the uranium primary beam during the experiment and the production of the secondary beams. We acknowledge the support by the University of Hong Kong within RGC Early Career Scheme (ECS) (Contract No. 27303915). The development of MINOS and the core MINOS team have been supported by the European Research Council through the ERC Grant No. MINOS-258567. A.O. has been supported by the JSPS long-term fellowship L-13520 at the RIKEN Nishina Center. C.S. has been supported by the IPA program at the RIKEN Nishina Center. A.P. has been supported by the Ministerio de Ciencia, Innovacion y Universidades (Spain), Severo Ochoa Prog. SEV-2016-0597 and Grant No. PGC-2018-94583. L.X.C would like to thank MOST for its support through the Physics Development Program Grant No. ĐTĐLCN.25/18. R.T. has been supported by the JSPS Grant-in-Aid for JSPS Research Fellows JP14J08718. K.O. acknowledges the support by Grant-in-Aid for Scientific Research JP16K05352. Publisher Copyright: © 2020 American Physical Society.

PY - 2020/3

Y1 - 2020/3

N2 - The structures of the neutron-rich Co69,71,73 isotopes were investigated via (p,2p) knockout reactions at the Radioactive Isotope Beam Factory, RIKEN. Isotopes of interest were studied using the DALI2 γ-ray detector array combined with the MINOS target and tracker system. Level schemes were reconstructed using the γ-γ coincidence technique, with tentative spin-parity assignments based on the measured inclusive and exclusive cross sections. Comparison with shell-model calculations using the Lenzi-Nowacki-Poves-Sieja LNPS and PFSDG-U interactions suggests coexistence of spherical and deformed shapes at low excitation energies in the Co69,71,73 isotopes. The distorted-wave impulse approximation (DWIA) framework was used to calculate the single-particle cross sections. These values were compared with the experimental findings.

AB - The structures of the neutron-rich Co69,71,73 isotopes were investigated via (p,2p) knockout reactions at the Radioactive Isotope Beam Factory, RIKEN. Isotopes of interest were studied using the DALI2 γ-ray detector array combined with the MINOS target and tracker system. Level schemes were reconstructed using the γ-γ coincidence technique, with tentative spin-parity assignments based on the measured inclusive and exclusive cross sections. Comparison with shell-model calculations using the Lenzi-Nowacki-Poves-Sieja LNPS and PFSDG-U interactions suggests coexistence of spherical and deformed shapes at low excitation energies in the Co69,71,73 isotopes. The distorted-wave impulse approximation (DWIA) framework was used to calculate the single-particle cross sections. These values were compared with the experimental findings.

UR - http://www.scopus.com/inward/record.url?scp=85083552874&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85083552874&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.101.034314

DO - 10.1103/PhysRevC.101.034314

M3 - Article

AN - SCOPUS:85083552874

VL - 101

JO - Physical Review C

JF - Physical Review C

SN - 2469-9985

IS - 3

M1 - 034314

ER -

Shell structure of the neutron-rich isotopes Co 69,71,73

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