Observation of rotation about the longest principal axis in Zr 89

S. Saha; R. Palit; J. Sethi; S. Biswas; P. Singh; S. Nag; A. K. Singh; I. Ragnarsson; F. S. Babra; U. Garg; A. Goswami; E. Ideguchi; H. C. Jain; S. Kumar; Md S.R. Laskar; G. Mukherjee; Z. Naik; C. S. Palshetkar

doi:10.1103/PhysRevC.99.054301

Observation of rotation about the longest principal axis in Zr 89

S. Saha, R. Palit, J. Sethi, S. Biswas, P. Singh, S. Nag, A. K. Singh, I. Ragnarsson, F. S. Babra, U. Garg, A. Goswami, E. Ideguchi, H. C. Jain, S. Kumar, Md S.R. Laskar, G. Mukherjee, Z. Naik, C. S. Palshetkar

Mathematical Physics

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

Abstract

High-spin states in Zr89 were populated in the Se80(C13,4n) reaction, and γ-ray coincidences were measured using the Indian National Gamma Array. The level scheme of Zr89 has been extended up to spin I=49/2 with the observation of a new dipole band. Directional correlation and polarization asymmetries of the γ rays have been measured to determine spin and parity of the levels. Line shapes of several transitions have been analyzed to determine lifetimes of the levels. Possible configurations of the band have been discussed using the cranked Nilsson-Strutinsky model. The calculations suggest a triaxial shape of the nucleus at high spins, and the band may represent rotation of the nucleus about the longest axis.

Original language	English
Article number	054301
Journal	Physical Review C
Volume	99
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevC.99.054301
Publication status	Published - 2019

Subject classification (UKÄ)

Subatomic Physics

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10.1103/PhysRevC.99.054301

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Saha, S., Palit, R., Sethi, J., Biswas, S., Singh, P., Nag, S., Singh, A. K., Ragnarsson, I., Babra, F. S., Garg, U., Goswami, A., Ideguchi, E., Jain, H. C., Kumar, S., Laskar, M. S. R., Mukherjee, G., Naik, Z., & Palshetkar, C. S. (2019). Observation of rotation about the longest principal axis in Zr 89. Physical Review C, 99(5), Article 054301. https://doi.org/10.1103/PhysRevC.99.054301

@article{86efcaff5c7a42dfb20b42e2d93f7f95,

title = "Observation of rotation about the longest principal axis in Zr 89",

abstract = "High-spin states in Zr89 were populated in the Se80(C13,4n) reaction, and γ-ray coincidences were measured using the Indian National Gamma Array. The level scheme of Zr89 has been extended up to spin I=49/2 with the observation of a new dipole band. Directional correlation and polarization asymmetries of the γ rays have been measured to determine spin and parity of the levels. Line shapes of several transitions have been analyzed to determine lifetimes of the levels. Possible configurations of the band have been discussed using the cranked Nilsson-Strutinsky model. The calculations suggest a triaxial shape of the nucleus at high spins, and the band may represent rotation of the nucleus about the longest axis.",

author = "S. Saha and R. Palit and J. Sethi and S. Biswas and P. Singh and S. Nag and Singh, \{A. K.\} and I. Ragnarsson and Babra, \{F. S.\} and U. Garg and A. Goswami and E. Ideguchi and Jain, \{H. C.\} and S. Kumar and Laskar, \{Md S.R.\} and G. Mukherjee and Z. Naik and Palshetkar, \{C. S.\}",

year = "2019",

doi = "10.1103/PhysRevC.99.054301",

language = "English",

volume = "99",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "5",

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TY - JOUR

T1 - Observation of rotation about the longest principal axis in Zr 89

AU - Saha, S.

AU - Palit, R.

AU - Sethi, J.

AU - Biswas, S.

AU - Singh, P.

AU - Nag, S.

AU - Singh, A. K.

AU - Ragnarsson, I.

AU - Babra, F. S.

AU - Garg, U.

AU - Goswami, A.

AU - Ideguchi, E.

AU - Jain, H. C.

AU - Kumar, S.

AU - Laskar, Md S.R.

AU - Mukherjee, G.

AU - Naik, Z.

AU - Palshetkar, C. S.

PY - 2019

Y1 - 2019

N2 - High-spin states in Zr89 were populated in the Se80(C13,4n) reaction, and γ-ray coincidences were measured using the Indian National Gamma Array. The level scheme of Zr89 has been extended up to spin I=49/2 with the observation of a new dipole band. Directional correlation and polarization asymmetries of the γ rays have been measured to determine spin and parity of the levels. Line shapes of several transitions have been analyzed to determine lifetimes of the levels. Possible configurations of the band have been discussed using the cranked Nilsson-Strutinsky model. The calculations suggest a triaxial shape of the nucleus at high spins, and the band may represent rotation of the nucleus about the longest axis.

AB - High-spin states in Zr89 were populated in the Se80(C13,4n) reaction, and γ-ray coincidences were measured using the Indian National Gamma Array. The level scheme of Zr89 has been extended up to spin I=49/2 with the observation of a new dipole band. Directional correlation and polarization asymmetries of the γ rays have been measured to determine spin and parity of the levels. Line shapes of several transitions have been analyzed to determine lifetimes of the levels. Possible configurations of the band have been discussed using the cranked Nilsson-Strutinsky model. The calculations suggest a triaxial shape of the nucleus at high spins, and the band may represent rotation of the nucleus about the longest axis.

UR - https://www.scopus.com/pages/publications/85065321971

U2 - 10.1103/PhysRevC.99.054301

DO - 10.1103/PhysRevC.99.054301

M3 - Article

AN - SCOPUS:85065321971

SN - 2469-9985

VL - 99

JO - Physical Review C

JF - Physical Review C

IS - 5

M1 - 054301

ER -

Observation of rotation about the longest principal axis in Zr 89

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