Yrast 6 + seniority isomers of 136,138 Sn

G. S. Simpson, G. Gey, A. Jungclaus, J. Taprogge, S. Nishimura, K. Sieja, P. Doornenbal, G. Lorusso, P. A. Söderström, T. Sumikama, Z. Y. Xu, H. Baba, F. Browne, N. Fukuda, N. Inabe, T. Isobe, H. S. Jung, D. Kameda, G. D. Kim, Y. K. KimI. Kojouharov, T. Kubo, N. Kurz, Y. K. Kwon, Z. Li, H. Sakurai, H. Schaffner, Y. Shimizu, H. Suzuki, H. Takeda, Z. Vajta, H. Watanabe, J. Wu, A. Yagi, K. Yoshinaga, S. Bönig, J. M. Daugas, F. Drouet, R. Gernhäuser, S. Ilieva, T. Kröll, A. Montaner-Pizá, K. Moschner, D. Mücher, H. Naïdja, H. Nishibata, F. Nowacki, A. Odahara, R. Orlandi, K. Steiger, A. Wendt

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

Delayed γ-ray cascades, originating from the decay of (6+) isomeric states, in the very neutron-rich, semimagic isotopes 136,138Sn have been observed following the projectile fission of a 238U beam at RIBF, RIKEN. The wave functions of these isomeric states are proposed to be predominantly a fully aligned pair of f7/2 neutrons. Shell-model calculations, performed using a realistic effective interaction, reproduce well the energies of the excited states of these nuclei and the measured transition rates, with the exception of the B(E2;6+→4+) rate of 136Sn, which deviates from a simple seniority scheme. Empirically reducing the νf7/22 orbit matrix elements produces a 41+ state with almost equal seniority 2 and 4 components, correctly reproducing the experimental B(E2;6+→4+) rate of 136Sn. These data provide a key benchmark for shell-model interactions far from stability.

Original languageEnglish
Article number132502
JournalPhysical Review Letters
Volume113
Issue number3
DOIs
Publication statusPublished - Sep 26 2014

Fingerprint

isomers
neutrons
fission
projectiles
rays
cascades
isotopes
interactions
wave functions
orbits
nuclei
decay
matrices
excitation
energy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Simpson, G. S., Gey, G., Jungclaus, A., Taprogge, J., Nishimura, S., Sieja, K., ... Wendt, A. (2014). Yrast 6 + seniority isomers of 136,138 Sn. Physical Review Letters, 113(3), [132502]. https://doi.org/10.1103/PhysRevLett.113.132502

Yrast 6 + seniority isomers of 136,138 Sn. / Simpson, G. S.; Gey, G.; Jungclaus, A.; Taprogge, J.; Nishimura, S.; Sieja, K.; Doornenbal, P.; Lorusso, G.; Söderström, P. A.; Sumikama, T.; Xu, Z. Y.; Baba, H.; Browne, F.; Fukuda, N.; Inabe, N.; Isobe, T.; Jung, H. S.; Kameda, D.; Kim, G. D.; Kim, Y. K.; Kojouharov, I.; Kubo, T.; Kurz, N.; Kwon, Y. K.; Li, Z.; Sakurai, H.; Schaffner, H.; Shimizu, Y.; Suzuki, H.; Takeda, H.; Vajta, Z.; Watanabe, H.; Wu, J.; Yagi, A.; Yoshinaga, K.; Bönig, S.; Daugas, J. M.; Drouet, F.; Gernhäuser, R.; Ilieva, S.; Kröll, T.; Montaner-Pizá, A.; Moschner, K.; Mücher, D.; Naïdja, H.; Nishibata, H.; Nowacki, F.; Odahara, A.; Orlandi, R.; Steiger, K.; Wendt, A.

In: Physical Review Letters, Vol. 113, No. 3, 132502, 26.09.2014.

Research output: Contribution to journalArticle

Simpson, GS, Gey, G, Jungclaus, A, Taprogge, J, Nishimura, S, Sieja, K, Doornenbal, P, Lorusso, G, Söderström, PA, Sumikama, T, Xu, ZY, Baba, H, Browne, F, Fukuda, N, Inabe, N, Isobe, T, Jung, HS, Kameda, D, Kim, GD, Kim, YK, Kojouharov, I, Kubo, T, Kurz, N, Kwon, YK, Li, Z, Sakurai, H, Schaffner, H, Shimizu, Y, Suzuki, H, Takeda, H, Vajta, Z, Watanabe, H, Wu, J, Yagi, A, Yoshinaga, K, Bönig, S, Daugas, JM, Drouet, F, Gernhäuser, R, Ilieva, S, Kröll, T, Montaner-Pizá, A, Moschner, K, Mücher, D, Naïdja, H, Nishibata, H, Nowacki, F, Odahara, A, Orlandi, R, Steiger, K & Wendt, A 2014, 'Yrast 6 + seniority isomers of 136,138 Sn', Physical Review Letters, vol. 113, no. 3, 132502. https://doi.org/10.1103/PhysRevLett.113.132502
Simpson GS, Gey G, Jungclaus A, Taprogge J, Nishimura S, Sieja K et al. Yrast 6 + seniority isomers of 136,138 Sn. Physical Review Letters. 2014 Sep 26;113(3). 132502. https://doi.org/10.1103/PhysRevLett.113.132502
Simpson, G. S. ; Gey, G. ; Jungclaus, A. ; Taprogge, J. ; Nishimura, S. ; Sieja, K. ; Doornenbal, P. ; Lorusso, G. ; Söderström, P. A. ; Sumikama, T. ; Xu, Z. Y. ; Baba, H. ; Browne, F. ; Fukuda, N. ; Inabe, N. ; Isobe, T. ; Jung, H. S. ; Kameda, D. ; Kim, G. D. ; Kim, Y. K. ; Kojouharov, I. ; Kubo, T. ; Kurz, N. ; Kwon, Y. K. ; Li, Z. ; Sakurai, H. ; Schaffner, H. ; Shimizu, Y. ; Suzuki, H. ; Takeda, H. ; Vajta, Z. ; Watanabe, H. ; Wu, J. ; Yagi, A. ; Yoshinaga, K. ; Bönig, S. ; Daugas, J. M. ; Drouet, F. ; Gernhäuser, R. ; Ilieva, S. ; Kröll, T. ; Montaner-Pizá, A. ; Moschner, K. ; Mücher, D. ; Naïdja, H. ; Nishibata, H. ; Nowacki, F. ; Odahara, A. ; Orlandi, R. ; Steiger, K. ; Wendt, A. / Yrast 6 + seniority isomers of 136,138 Sn. In: Physical Review Letters. 2014 ; Vol. 113, No. 3.
@article{0d84ed04ad574f7e8d16c27ec402a106,
title = "Yrast 6 + seniority isomers of 136,138 Sn",
abstract = "Delayed γ-ray cascades, originating from the decay of (6+) isomeric states, in the very neutron-rich, semimagic isotopes 136,138Sn have been observed following the projectile fission of a 238U beam at RIBF, RIKEN. The wave functions of these isomeric states are proposed to be predominantly a fully aligned pair of f7/2 neutrons. Shell-model calculations, performed using a realistic effective interaction, reproduce well the energies of the excited states of these nuclei and the measured transition rates, with the exception of the B(E2;6+→4+) rate of 136Sn, which deviates from a simple seniority scheme. Empirically reducing the νf7/22 orbit matrix elements produces a 41+ state with almost equal seniority 2 and 4 components, correctly reproducing the experimental B(E2;6+→4+) rate of 136Sn. These data provide a key benchmark for shell-model interactions far from stability.",
author = "Simpson, {G. S.} and G. Gey and A. Jungclaus and J. Taprogge and S. Nishimura and K. Sieja and P. Doornenbal and G. Lorusso and S{\"o}derstr{\"o}m, {P. A.} and T. Sumikama and Xu, {Z. Y.} and H. Baba and F. Browne and N. Fukuda and N. Inabe and T. Isobe and Jung, {H. S.} and D. Kameda and Kim, {G. D.} and Kim, {Y. K.} and I. Kojouharov and T. Kubo and N. Kurz and Kwon, {Y. K.} and Z. Li and H. Sakurai and H. Schaffner and Y. Shimizu and H. Suzuki and H. Takeda and Z. Vajta and H. Watanabe and J. Wu and A. Yagi and K. Yoshinaga and S. B{\"o}nig and Daugas, {J. M.} and F. Drouet and R. Gernh{\"a}user and S. Ilieva and T. Kr{\"o}ll and A. Montaner-Piz{\'a} and K. Moschner and D. M{\"u}cher and H. Na{\"i}dja and H. Nishibata and F. Nowacki and A. Odahara and R. Orlandi and K. Steiger and A. Wendt",
year = "2014",
month = "9",
day = "26",
doi = "10.1103/PhysRevLett.113.132502",
language = "English",
volume = "113",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "3",

}

TY - JOUR

T1 - Yrast 6 + seniority isomers of 136,138 Sn

AU - Simpson, G. S.

AU - Gey, G.

AU - Jungclaus, A.

AU - Taprogge, J.

AU - Nishimura, S.

AU - Sieja, K.

AU - Doornenbal, P.

AU - Lorusso, G.

AU - Söderström, P. A.

AU - Sumikama, T.

AU - Xu, Z. Y.

AU - Baba, H.

AU - Browne, F.

AU - Fukuda, N.

AU - Inabe, N.

AU - Isobe, T.

AU - Jung, H. S.

AU - Kameda, D.

AU - Kim, G. D.

AU - Kim, Y. K.

AU - Kojouharov, I.

AU - Kubo, T.

AU - Kurz, N.

AU - Kwon, Y. K.

AU - Li, Z.

AU - Sakurai, H.

AU - Schaffner, H.

AU - Shimizu, Y.

AU - Suzuki, H.

AU - Takeda, H.

AU - Vajta, Z.

AU - Watanabe, H.

AU - Wu, J.

AU - Yagi, A.

AU - Yoshinaga, K.

AU - Bönig, S.

AU - Daugas, J. M.

AU - Drouet, F.

AU - Gernhäuser, R.

AU - Ilieva, S.

AU - Kröll, T.

AU - Montaner-Pizá, A.

AU - Moschner, K.

AU - Mücher, D.

AU - Naïdja, H.

AU - Nishibata, H.

AU - Nowacki, F.

AU - Odahara, A.

AU - Orlandi, R.

AU - Steiger, K.

AU - Wendt, A.

PY - 2014/9/26

Y1 - 2014/9/26

N2 - Delayed γ-ray cascades, originating from the decay of (6+) isomeric states, in the very neutron-rich, semimagic isotopes 136,138Sn have been observed following the projectile fission of a 238U beam at RIBF, RIKEN. The wave functions of these isomeric states are proposed to be predominantly a fully aligned pair of f7/2 neutrons. Shell-model calculations, performed using a realistic effective interaction, reproduce well the energies of the excited states of these nuclei and the measured transition rates, with the exception of the B(E2;6+→4+) rate of 136Sn, which deviates from a simple seniority scheme. Empirically reducing the νf7/22 orbit matrix elements produces a 41+ state with almost equal seniority 2 and 4 components, correctly reproducing the experimental B(E2;6+→4+) rate of 136Sn. These data provide a key benchmark for shell-model interactions far from stability.

AB - Delayed γ-ray cascades, originating from the decay of (6+) isomeric states, in the very neutron-rich, semimagic isotopes 136,138Sn have been observed following the projectile fission of a 238U beam at RIBF, RIKEN. The wave functions of these isomeric states are proposed to be predominantly a fully aligned pair of f7/2 neutrons. Shell-model calculations, performed using a realistic effective interaction, reproduce well the energies of the excited states of these nuclei and the measured transition rates, with the exception of the B(E2;6+→4+) rate of 136Sn, which deviates from a simple seniority scheme. Empirically reducing the νf7/22 orbit matrix elements produces a 41+ state with almost equal seniority 2 and 4 components, correctly reproducing the experimental B(E2;6+→4+) rate of 136Sn. These data provide a key benchmark for shell-model interactions far from stability.

UR - http://www.scopus.com/inward/record.url?scp=84907432163&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84907432163&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.113.132502

DO - 10.1103/PhysRevLett.113.132502

M3 - Article

AN - SCOPUS:84907432163

VL - 113

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 3

M1 - 132502

ER -