Evidence for collective oblate rotation in N = Z 68 Se

S. M. Fischer; D. P. Balamuth; P. A. Hausladen; C. J. Lister; M. P. Carpenter; D. Seweryniak; J. Schwartz

doi:10.1103/PhysRevLett.84.4064

Evidence for collective oblate rotation in N = Z ⁶⁸ Se

S. M. Fischer, D. P. Balamuth, P. A. Hausladen, C. J. Lister, M. P. Carpenter, D. Seweryniak, J. Schwartz

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

107 Citations (Scopus)

Abstract

A γ-ray spectroscopic measurement of the N=Z nucleus ⁶⁸Se has been made following the ¹²C(⁵⁸Ni,2n) reaction at 185 and 220 MeV using Gammasphere and the Argonne Fragment Mass Analyzer. Despite a very low production cross section of 200(50)μb, two distinct rotational bands were found; the ground state band consistent with oblate collective rotation, and an excited band consistent with prolate rotation. These observations support long-standing predictions that nuclear ground states with substantial oblate (β₂∼ −0.3)deformation should exist in this region.

Original language	English
Pages (from-to)	4064-4067
Number of pages	4
Journal	Physical Review Letters
Volume	84
Issue number	18
DOIs	https://doi.org/10.1103/PhysRevLett.84.4064
Publication status	Published - May 2000

Access to Document

10.1103/PhysRevLett.84.4064

Cite this

@article{7f970227dc8a476485ffdab8eadb241d,

title = "Evidence for collective oblate rotation in N = Z 68 Se",

abstract = "A γ-ray spectroscopic measurement of the N=Z nucleus 68Se has been made following the 12C(58Ni,2n) reaction at 185 and 220 MeV using Gammasphere and the Argonne Fragment Mass Analyzer. Despite a very low production cross section of 200(50)μb, two distinct rotational bands were found; the ground state band consistent with oblate collective rotation, and an excited band consistent with prolate rotation. These observations support long-standing predictions that nuclear ground states with substantial oblate (β2∼ −0.3)deformation should exist in this region.",

author = "Fischer, {S. M.} and Balamuth, {D. P.} and Hausladen, {P. A.} and Lister, {C. J.} and Carpenter, {M. P.} and D. Seweryniak and J. Schwartz",

year = "2000",

month = may,

doi = "10.1103/PhysRevLett.84.4064",

language = "English",

volume = "84",

pages = "4064--4067",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "18",

}

TY - JOUR

T1 - Evidence for collective oblate rotation in N = Z 68 Se

AU - Fischer, S. M.

AU - Balamuth, D. P.

AU - Hausladen, P. A.

AU - Lister, C. J.

AU - Carpenter, M. P.

AU - Seweryniak, D.

AU - Schwartz, J.

PY - 2000/5

Y1 - 2000/5

N2 - A γ-ray spectroscopic measurement of the N=Z nucleus 68Se has been made following the 12C(58Ni,2n) reaction at 185 and 220 MeV using Gammasphere and the Argonne Fragment Mass Analyzer. Despite a very low production cross section of 200(50)μb, two distinct rotational bands were found; the ground state band consistent with oblate collective rotation, and an excited band consistent with prolate rotation. These observations support long-standing predictions that nuclear ground states with substantial oblate (β2∼ −0.3)deformation should exist in this region.

AB - A γ-ray spectroscopic measurement of the N=Z nucleus 68Se has been made following the 12C(58Ni,2n) reaction at 185 and 220 MeV using Gammasphere and the Argonne Fragment Mass Analyzer. Despite a very low production cross section of 200(50)μb, two distinct rotational bands were found; the ground state band consistent with oblate collective rotation, and an excited band consistent with prolate rotation. These observations support long-standing predictions that nuclear ground states with substantial oblate (β2∼ −0.3)deformation should exist in this region.

UR - http://www.scopus.com/inward/record.url?scp=0000762703&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.84.4064

DO - 10.1103/PhysRevLett.84.4064

M3 - Article

SN - 0031-9007

VL - 84

SP - 4064

EP - 4067

JO - Physical Review Letters

JF - Physical Review Letters

IS - 18

ER -

Evidence for collective oblate rotation in N = Z ⁶⁸ Se

Abstract

Access to Document

Other files and links

Fingerprint

Cite this