High-spin isomer and level structure of 145Sm

A. Odahara; Y. Gono; S. Mitarai; T. Morikawa; T. Shizuma; M. Kidera; M. Shibata; T. Kishida; E. Ideguchi; K. Morita; A. Yoshida; H. Kumagai; Y. H. Zhang; A. Ferragut; T. Murakami; M. Oshima; H. Iimura; S. Hamada; H. Kusakari; M. Sugawara; M. Ogawa; M. Nakajima; B. J. Min; J. C. Kim; S. J. Chae; H. Sagawa

doi:10.1016/S0375-9474(97)00189-9

High-spin isomer and level structure of ¹⁴⁵Sm

A. Odahara, Y. Gono, S. Mitarai, T. Morikawa, T. Shizuma, M. Kidera, M. Shibata, T. Kishida, E. Ideguchi, K. Morita, A. Yoshida, H. Kumagai, Y. H. Zhang, A. Ferragut, T. Murakami, M. Oshima, H. Iimura, S. Hamada, H. Kusakari, M. SugawaraM. Ogawa, M. Nakajima, B. J. Min, J. C. Kim, S. J. Chae, H. Sagawa

Research output: Contribution to journal › Article › peer-review

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Abstract

High-spin states of ¹⁴⁵Sm were studied by using the reactions ²⁰Ne(¹³⁶Xe,α7n), ¹⁶O(¹³⁶Xe,7n), ¹³⁹La(¹⁰B,4n) and ¹³⁸Ba(¹³C,6n). The level scheme was extended up to the state at 14.6 MeV. The excitation energy and the spin-parity of the 0.96 μs high-spin isomer were determined to be 8.8 MeV and (49/2⁺), respectively. Experimental results were discussed comparing with the deformed independent particle model calculation. High-spin isomers observed in N = 83 isotones were interpreted to be caused by the sudden shape change from near spherical to oblate. The Z = 64 shell gap energy was found to decrease from 2.4 to 2.0 MeV as the proton number decreases from Z = 64 to 61.

Original language	English
Pages (from-to)	363-384
Number of pages	22
Journal	Nuclear Physics A
Volume	620
Issue number	3
DOIs	https://doi.org/10.1016/S0375-9474(97)00189-9
Publication status	Published - Jul 14 1997
Externally published	Yes

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1016/S0375-9474(97)00189-9

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Odahara, A., Gono, Y., Mitarai, S., Morikawa, T., Shizuma, T., Kidera, M., Shibata, M., Kishida, T., Ideguchi, E., Morita, K., Yoshida, A., Kumagai, H., Zhang, Y. H., Ferragut, A., Murakami, T., Oshima, M., Iimura, H., Hamada, S., Kusakari, H., ... Sagawa, H. (1997). High-spin isomer and level structure of ¹⁴⁵Sm. Nuclear Physics A, 620(3), 363-384. https://doi.org/10.1016/S0375-9474(97)00189-9

Odahara, A, Gono, Y, Mitarai, S, Morikawa, T, Shizuma, T, Kidera, M, Shibata, M, Kishida, T, Ideguchi, E, Morita, K, Yoshida, A, Kumagai, H, Zhang, YH, Ferragut, A, Murakami, T, Oshima, M, Iimura, H, Hamada, S, Kusakari, H, Sugawara, M, Ogawa, M, Nakajima, M, Min, BJ, Kim, JC, Chae, SJ & Sagawa, H 1997, 'High-spin isomer and level structure of ¹⁴⁵Sm', Nuclear Physics A, vol. 620, no. 3, pp. 363-384. https://doi.org/10.1016/S0375-9474(97)00189-9

@article{f940120ba16b49b9882ee83ff5233d8a,

title = "High-spin isomer and level structure of 145Sm",

abstract = "High-spin states of 145Sm were studied by using the reactions 20Ne(136Xe,α7n), 16O(136Xe,7n), 139La(10B,4n) and 138Ba(13C,6n). The level scheme was extended up to the state at 14.6 MeV. The excitation energy and the spin-parity of the 0.96 μs high-spin isomer were determined to be 8.8 MeV and (49/2+), respectively. Experimental results were discussed comparing with the deformed independent particle model calculation. High-spin isomers observed in N = 83 isotones were interpreted to be caused by the sudden shape change from near spherical to oblate. The Z = 64 shell gap energy was found to decrease from 2.4 to 2.0 MeV as the proton number decreases from Z = 64 to 61.",

author = "A. Odahara and Y. Gono and S. Mitarai and T. Morikawa and T. Shizuma and M. Kidera and M. Shibata and T. Kishida and E. Ideguchi and K. Morita and A. Yoshida and H. Kumagai and Zhang, {Y. H.} and A. Ferragut and T. Murakami and M. Oshima and H. Iimura and S. Hamada and H. Kusakari and M. Sugawara and M. Ogawa and M. Nakajima and Min, {B. J.} and Kim, {J. C.} and Chae, {S. J.} and H. Sagawa",

year = "1997",

month = jul,

day = "14",

doi = "10.1016/S0375-9474(97)00189-9",

language = "English",

volume = "620",

pages = "363--384",

journal = "Nuclear Physics A",

issn = "0375-9474",

publisher = "Elsevier",

number = "3",

}

TY - JOUR

T1 - High-spin isomer and level structure of 145Sm

AU - Odahara, A.

AU - Gono, Y.

AU - Mitarai, S.

AU - Morikawa, T.

AU - Shizuma, T.

AU - Kidera, M.

AU - Shibata, M.

AU - Kishida, T.

AU - Ideguchi, E.

AU - Morita, K.

AU - Yoshida, A.

AU - Kumagai, H.

AU - Zhang, Y. H.

AU - Ferragut, A.

AU - Murakami, T.

AU - Oshima, M.

AU - Iimura, H.

AU - Hamada, S.

AU - Kusakari, H.

AU - Sugawara, M.

AU - Ogawa, M.

AU - Nakajima, M.

AU - Min, B. J.

AU - Kim, J. C.

AU - Chae, S. J.

AU - Sagawa, H.

PY - 1997/7/14

Y1 - 1997/7/14

N2 - High-spin states of 145Sm were studied by using the reactions 20Ne(136Xe,α7n), 16O(136Xe,7n), 139La(10B,4n) and 138Ba(13C,6n). The level scheme was extended up to the state at 14.6 MeV. The excitation energy and the spin-parity of the 0.96 μs high-spin isomer were determined to be 8.8 MeV and (49/2+), respectively. Experimental results were discussed comparing with the deformed independent particle model calculation. High-spin isomers observed in N = 83 isotones were interpreted to be caused by the sudden shape change from near spherical to oblate. The Z = 64 shell gap energy was found to decrease from 2.4 to 2.0 MeV as the proton number decreases from Z = 64 to 61.

AB - High-spin states of 145Sm were studied by using the reactions 20Ne(136Xe,α7n), 16O(136Xe,7n), 139La(10B,4n) and 138Ba(13C,6n). The level scheme was extended up to the state at 14.6 MeV. The excitation energy and the spin-parity of the 0.96 μs high-spin isomer were determined to be 8.8 MeV and (49/2+), respectively. Experimental results were discussed comparing with the deformed independent particle model calculation. High-spin isomers observed in N = 83 isotones were interpreted to be caused by the sudden shape change from near spherical to oblate. The Z = 64 shell gap energy was found to decrease from 2.4 to 2.0 MeV as the proton number decreases from Z = 64 to 61.

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DO - 10.1016/S0375-9474(97)00189-9

M3 - Article

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SN - 0375-9474

VL - 620

SP - 363

EP - 384

JO - Nuclear Physics A

JF - Nuclear Physics A

IS - 3

ER -

High-spin isomer and level structure of ¹⁴⁵Sm

Abstract

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