How Robust is the N=34 Subshell Closure? First Spectroscopy of Ar 52

H. N. Liu; A. Obertelli; P. Doornenbal; C. A. Bertulani; G. Hagen; J. D. Holt; G. R. Jansen; T. D. Morris; A. Schwenk; R. Stroberg; N. Achouri; H. Baba; F. Browne; D. Calvet; F. Château; S. Chen; N. Chiga; A. Corsi; M. L. Cortés; A. Delbart; J. M. Gheller; A. Giganon; A. Gillibert; C. Hilaire; T. Isobe; T. Kobayashi; Y. Kubota; V. Lapoux; T. Motobayashi; I. Murray; H. Otsu; V. Panin; N. Paul; W. Rodriguez; H. Sakurai; M. Sasano; D. Steppenbeck; L. Stuhl; Y. L. Sun; Y. Togano; T. Uesaka; K. Wimmer; K. Yoneda; O. Aktas; T. Aumann; L. X. Chung; F. Flavigny; S. Franchoo; I. Gašparić; R. B. Gerst; J. Gibelin; K. I. Hahn; D. Kim; T. Koiwai; Y. Kondo; P. Koseoglou; J. Lee; C. Lehr; B. D. Linh; T. Lokotko; M. Maccormick; K. Moschner; T. Nakamura; S. Y. Park; D. Rossi; E. Sahin; D. Sohler; P. A. Söderström; S. Takeuchi; H. Törnqvist; V. Vaquero; V. Wagner; S. Wang; V. Werner; X. Xu; H. Yamada; D. Yan; Z. Yang; M. Yasuda; L. Zanetti

doi:10.1103/PhysRevLett.122.072502

How Robust is the N=34 Subshell Closure? First Spectroscopy of Ar 52

H. N. Liu, A. Obertelli, P. Doornenbal, C. A. Bertulani, G. Hagen, J. D. Holt, G. R. Jansen, T. D. Morris, A. Schwenk, R. Stroberg, N. Achouri, H. Baba, F. Browne, D. Calvet, F. Château, S. Chen, N. Chiga, A. Corsi, M. L. Cortés, A. DelbartJ. M. Gheller, A. Giganon, A. Gillibert, C. Hilaire, T. Isobe, T. Kobayashi, Y. Kubota, V. Lapoux, T. Motobayashi, I. Murray, H. Otsu, V. Panin, N. Paul, W. Rodriguez, H. Sakurai, M. Sasano, D. Steppenbeck, L. Stuhl, Y. L. Sun, Y. Togano, T. Uesaka, K. Wimmer, K. Yoneda, O. Aktas, T. Aumann, L. X. Chung, F. Flavigny, S. Franchoo, I. Gašparić, R. B. Gerst, J. Gibelin, K. I. Hahn, D. Kim, T. Koiwai, Y. Kondo, P. Koseoglou, J. Lee, C. Lehr, B. D. Linh, T. Lokotko, M. Maccormick, K. Moschner, T. Nakamura, S. Y. Park, D. Rossi, E. Sahin, D. Sohler, P. A. Söderström, S. Takeuchi, H. Törnqvist, V. Vaquero, V. Wagner, S. Wang, V. Werner, X. Xu, H. Yamada, D. Yan, Z. Yang, M. Yasuda, L. Zanetti

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Resumen

The first γ-ray spectroscopy of Ar52, with the neutron number N=34, was measured using the K53(p,2p) one-proton removal reaction at ∼210 MeV/u at the RIBF facility. The 21+ excitation energy is found at 1656(18) keV, the highest among the Ar isotopes with N>20. This result is the first experimental signature of the persistence of the N=34 subshell closure beyond Ca54, i.e., below the magic proton number Z=20. Shell-model calculations with phenomenological and chiral-effective-field-theory interactions both reproduce the measured 21+ systematics of neutron-rich Ar isotopes, and support a N=34 subshell closure in Ar52.

Idioma original	Inglés
Número de artículo	072502
Publicación	Physical Review Letters
Volumen	122
N.º	7
DOI	https://doi.org/10.1103/PhysRevLett.122.072502
Estado	Publicada - 21 feb. 2019
Publicado de forma externa	Sí

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Liu, H. N., Obertelli, A., Doornenbal, P., Bertulani, C. A., Hagen, G., Holt, J. D., Jansen, G. R., Morris, T. D., Schwenk, A., Stroberg, R., Achouri, N., Baba, H., Browne, F., Calvet, D., Château, F., Chen, S., Chiga, N., Corsi, A., Cortés, M. L., ... Zanetti, L. (2019). How Robust is the N=34 Subshell Closure? First Spectroscopy of Ar 52. Physical Review Letters, 122(7), Artículo 072502. https://doi.org/10.1103/PhysRevLett.122.072502

@article{2e6e22df941944e8b5f571c704021a2f,

title = "How Robust is the N=34 Subshell Closure? First Spectroscopy of Ar 52",

abstract = "The first γ-ray spectroscopy of Ar52, with the neutron number N=34, was measured using the K53(p,2p) one-proton removal reaction at ∼210 MeV/u at the RIBF facility. The 21+ excitation energy is found at 1656(18) keV, the highest among the Ar isotopes with N>20. This result is the first experimental signature of the persistence of the N=34 subshell closure beyond Ca54, i.e., below the magic proton number Z=20. Shell-model calculations with phenomenological and chiral-effective-field-theory interactions both reproduce the measured 21+ systematics of neutron-rich Ar isotopes, and support a N=34 subshell closure in Ar52.",

author = "Liu, \{H. N.\} and A. Obertelli and P. Doornenbal and Bertulani, \{C. A.\} and G. Hagen and Holt, \{J. D.\} and Jansen, \{G. R.\} and Morris, \{T. D.\} and A. Schwenk and R. Stroberg and N. Achouri and H. Baba and F. Browne and D. Calvet and F. Ch{\^a}teau and S. Chen and N. Chiga and A. Corsi and Cort{\'e}s, \{M. L.\} and A. Delbart and Gheller, \{J. M.\} and A. Giganon and A. Gillibert and C. Hilaire and T. Isobe and T. Kobayashi and Y. Kubota and V. Lapoux and T. Motobayashi and I. Murray and H. Otsu and V. Panin and N. Paul and W. Rodriguez and H. Sakurai and M. Sasano and D. Steppenbeck and L. Stuhl and Sun, \{Y. L.\} and Y. Togano and T. Uesaka and K. Wimmer and K. Yoneda and O. Aktas and T. Aumann and Chung, \{L. X.\} and F. Flavigny and S. Franchoo and I. Ga{\v s}pari{\'c} and Gerst, \{R. B.\} and J. Gibelin and Hahn, \{K. I.\} and D. Kim and T. Koiwai and Y. Kondo and P. Koseoglou and J. Lee and C. Lehr and Linh, \{B. D.\} and T. Lokotko and M. Maccormick and K. Moschner and T. Nakamura and Park, \{S. Y.\} and D. Rossi and E. Sahin and D. Sohler and S{\"o}derstr{\"o}m, \{P. A.\} and S. Takeuchi and H. T{\"o}rnqvist and V. Vaquero and V. Wagner and S. Wang and V. Werner and X. Xu and H. Yamada and D. Yan and Z. Yang and M. Yasuda and L. Zanetti",

note = "Publisher Copyright: {\textcopyright} 2019 authors. Published by the American Physical Society.",

year = "2019",

month = feb,

day = "21",

doi = "10.1103/PhysRevLett.122.072502",

language = "English",

volume = "122",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "7",

}

Liu, HN, Obertelli, A, Doornenbal, P, Bertulani, CA, Hagen, G, Holt, JD, Jansen, GR, Morris, TD, Schwenk, A, Stroberg, R, Achouri, N, Baba, H, Browne, F, Calvet, D, Château, F, Chen, S, Chiga, N, Corsi, A, Cortés, ML, Delbart, A, Gheller, JM, Giganon, A, Gillibert, A, Hilaire, C, Isobe, T, Kobayashi, T, Kubota, Y, Lapoux, V, Motobayashi, T, Murray, I, Otsu, H, Panin, V, Paul, N, Rodriguez, W, Sakurai, H, Sasano, M, Steppenbeck, D, Stuhl, L, Sun, YL, Togano, Y, Uesaka, T, Wimmer, K, Yoneda, K, Aktas, O, Aumann, T, Chung, LX, Flavigny, F, Franchoo, S, Gašparić, I, Gerst, RB, Gibelin, J, Hahn, KI, Kim, D, Koiwai, T, Kondo, Y, Koseoglou, P, Lee, J, Lehr, C, Linh, BD, Lokotko, T, Maccormick, M, Moschner, K, Nakamura, T, Park, SY, Rossi, D, Sahin, E, Sohler, D, Söderström, PA, Takeuchi, S, Törnqvist, H, Vaquero, V, Wagner, V, Wang, S, Werner, V, Xu, X, Yamada, H, Yan, D, Yang, Z, Yasuda, M & Zanetti, L 2019, 'How Robust is the N=34 Subshell Closure? First Spectroscopy of Ar 52', Physical Review Letters, vol. 122, n.º 7, 072502. https://doi.org/10.1103/PhysRevLett.122.072502

TY - JOUR

T1 - How Robust is the N=34 Subshell Closure? First Spectroscopy of Ar 52

AU - Liu, H. N.

AU - Obertelli, A.

AU - Doornenbal, P.

AU - Bertulani, C. A.

AU - Hagen, G.

AU - Holt, J. D.

AU - Jansen, G. R.

AU - Morris, T. D.

AU - Schwenk, A.

AU - Stroberg, R.

AU - Achouri, N.

AU - Baba, H.

AU - Browne, F.

AU - Calvet, D.

AU - Château, F.

AU - Chen, S.

AU - Chiga, N.

AU - Corsi, A.

AU - Cortés, M. L.

AU - Delbart, A.

AU - Gheller, J. M.

AU - Giganon, A.

AU - Gillibert, A.

AU - Hilaire, C.

AU - Isobe, T.

AU - Kobayashi, T.

AU - Kubota, Y.

AU - Lapoux, V.

AU - Motobayashi, T.

AU - Murray, I.

AU - Otsu, H.

AU - Panin, V.

AU - Paul, N.

AU - Rodriguez, W.

AU - Sakurai, H.

AU - Sasano, M.

AU - Steppenbeck, D.

AU - Stuhl, L.

AU - Sun, Y. L.

AU - Togano, Y.

AU - Uesaka, T.

AU - Wimmer, K.

AU - Yoneda, K.

AU - Aktas, O.

AU - Aumann, T.

AU - Chung, L. X.

AU - Flavigny, F.

AU - Franchoo, S.

AU - Gašparić, I.

AU - Gerst, R. B.

AU - Gibelin, J.

AU - Hahn, K. I.

AU - Kim, D.

AU - Koiwai, T.

AU - Kondo, Y.

AU - Koseoglou, P.

AU - Lee, J.

AU - Lehr, C.

AU - Linh, B. D.

AU - Lokotko, T.

AU - Maccormick, M.

AU - Moschner, K.

AU - Nakamura, T.

AU - Park, S. Y.

AU - Rossi, D.

AU - Sahin, E.

AU - Sohler, D.

AU - Söderström, P. A.

AU - Takeuchi, S.

AU - Törnqvist, H.

AU - Vaquero, V.

AU - Wagner, V.

AU - Wang, S.

AU - Werner, V.

AU - Xu, X.

AU - Yamada, H.

AU - Yan, D.

AU - Yang, Z.

AU - Yasuda, M.

AU - Zanetti, L.

PY - 2019/2/21

Y1 - 2019/2/21

N2 - The first γ-ray spectroscopy of Ar52, with the neutron number N=34, was measured using the K53(p,2p) one-proton removal reaction at ∼210 MeV/u at the RIBF facility. The 21+ excitation energy is found at 1656(18) keV, the highest among the Ar isotopes with N>20. This result is the first experimental signature of the persistence of the N=34 subshell closure beyond Ca54, i.e., below the magic proton number Z=20. Shell-model calculations with phenomenological and chiral-effective-field-theory interactions both reproduce the measured 21+ systematics of neutron-rich Ar isotopes, and support a N=34 subshell closure in Ar52.

AB - The first γ-ray spectroscopy of Ar52, with the neutron number N=34, was measured using the K53(p,2p) one-proton removal reaction at ∼210 MeV/u at the RIBF facility. The 21+ excitation energy is found at 1656(18) keV, the highest among the Ar isotopes with N>20. This result is the first experimental signature of the persistence of the N=34 subshell closure beyond Ca54, i.e., below the magic proton number Z=20. Shell-model calculations with phenomenological and chiral-effective-field-theory interactions both reproduce the measured 21+ systematics of neutron-rich Ar isotopes, and support a N=34 subshell closure in Ar52.

UR - https://www.scopus.com/pages/publications/85062034151

U2 - 10.1103/PhysRevLett.122.072502

DO - 10.1103/PhysRevLett.122.072502

M3 - Article

C2 - 30848641

AN - SCOPUS:85062034151

SN - 0031-9007

VL - 122

JO - Physical Review Letters

JF - Physical Review Letters

IS - 7

M1 - 072502

ER -

How Robust is the N=34 Subshell Closure? First Spectroscopy of Ar 52

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