Comparison of superdeformed bands in 61Zn and 60Zn: Possible evidence for Τ=0 pairing

C. H. Yu; C. Baktash; J. Dobaczewski; J. A. Cameron; C. Chitu; M. Devlin; J. Eberth; A. Galindo-Uribarri; D. S. Haslip; D. R. LaFosse; T. J. Lampman; I. Y. Lee; F. Lerma; A. O. Macchiavelli; S. D. Paul; D. C. Radford; D. Rudolph; D. G. Sarantites; C. E. Svensson; J. C. Waddington; J. N. Wilson

doi:10.1103/PhysRevC.60.031305

Comparison of superdeformed bands in ⁶¹Zn and ⁶⁰Zn: Possible evidence for Τ=0 pairing

C. H. Yu, C. Baktash, J. Dobaczewski, J. A. Cameron, C. Chitu, M. Devlin, J. Eberth, A. Galindo-Uribarri, D. S. Haslip, D. R. LaFosse, T. J. Lampman, I. Y. Lee, F. Lerma, A. O. Macchiavelli, S. D. Paul, D. C. Radford, D. Rudolph, D. G. Sarantites, C. E. Svensson, J. C. WaddingtonJ. N. Wilson

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Abstract

The yrast superdeformed band in ⁶¹Zn has been established using ²⁸Si(³⁶Ar, 2pn)⁶¹Zn and ⁴⁰Ca(²⁹Si, 2α)⁶¹Zn fusion-evaporation reactions. The excitation energy of this band was determined via two transitions that link this band to the normally deformed states. Lifetime analysis of this band resulted in a quadrupole moment of Q₁ = 3.0±^0.5_0.4e b, which corresponds to a deformation of β₂ = 0.50±^0.07_0.06. A comparison of the J⁽²⁾ dynamical moments of inertia of the yrast superdeformed band in ⁶¹Zn with those in ⁶⁰Zn shows a nearly complete blocking of the observed alignment in ⁶⁰Zn, indicating that Τ = 0 proton-neutron pair correlations may be present in ⁶⁰Zn.

Original language	English
Article number	031305
Pages (from-to)	313051-313055
Number of pages	5
Journal	Physical Review C - Nuclear Physics
Volume	60
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevC.60.031305
State	Published - Sep 1999

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Yu, C. H., Baktash, C., Dobaczewski, J., Cameron, J. A., Chitu, C., Devlin, M., Eberth, J., Galindo-Uribarri, A., Haslip, D. S., LaFosse, D. R., Lampman, T. J., Lee, I. Y., Lerma, F., Macchiavelli, A. O., Paul, S. D., Radford, D. C., Rudolph, D., Sarantites, D. G., Svensson, C. E., ... Wilson, J. N. (1999). Comparison of superdeformed bands in ⁶¹Zn and ⁶⁰Zn: Possible evidence for Τ=0 pairing. Physical Review C - Nuclear Physics, 60(3), 313051-313055. Article 031305. https://doi.org/10.1103/PhysRevC.60.031305

@article{e67fd887bed44bea97625e5cfff5e867,

title = "Comparison of superdeformed bands in 61Zn and 60Zn: Possible evidence for Τ=0 pairing",

abstract = "The yrast superdeformed band in 61Zn has been established using 28Si(36Ar, 2pn)61Zn and 40Ca(29Si, 2α)61Zn fusion-evaporation reactions. The excitation energy of this band was determined via two transitions that link this band to the normally deformed states. Lifetime analysis of this band resulted in a quadrupole moment of Q1 = 3.0±0.50.4e b, which corresponds to a deformation of β2 = 0.50±0.070.06. A comparison of the J(2) dynamical moments of inertia of the yrast superdeformed band in 61Zn with those in 60Zn shows a nearly complete blocking of the observed alignment in 60Zn, indicating that Τ = 0 proton-neutron pair correlations may be present in 60Zn.",

author = "Yu, {C. H.} and C. Baktash and J. Dobaczewski and Cameron, {J. A.} and C. Chitu and M. Devlin and J. Eberth and A. Galindo-Uribarri and Haslip, {D. S.} and LaFosse, {D. R.} and Lampman, {T. J.} and Lee, {I. Y.} and F. Lerma and Macchiavelli, {A. O.} and Paul, {S. D.} and Radford, {D. C.} and D. Rudolph and Sarantites, {D. G.} and Svensson, {C. E.} and Waddington, {J. C.} and Wilson, {J. N.}",

year = "1999",

month = sep,

doi = "10.1103/PhysRevC.60.031305",

language = "English",

volume = "60",

pages = "313051--313055",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

number = "3",

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Yu, CH, Baktash, C, Dobaczewski, J, Cameron, JA, Chitu, C, Devlin, M, Eberth, J, Galindo-Uribarri, A, Haslip, DS, LaFosse, DR, Lampman, TJ, Lee, IY, Lerma, F, Macchiavelli, AO, Paul, SD, Radford, DC, Rudolph, D, Sarantites, DG, Svensson, CE, Waddington, JC & Wilson, JN 1999, 'Comparison of superdeformed bands in ⁶¹Zn and ⁶⁰Zn: Possible evidence for Τ=0 pairing', Physical Review C - Nuclear Physics, vol. 60, no. 3, 031305, pp. 313051-313055. https://doi.org/10.1103/PhysRevC.60.031305

TY - JOUR

T1 - Comparison of superdeformed bands in 61Zn and 60Zn

T2 - Possible evidence for Τ=0 pairing

AU - Yu, C. H.

AU - Baktash, C.

AU - Dobaczewski, J.

AU - Cameron, J. A.

AU - Chitu, C.

AU - Devlin, M.

AU - Eberth, J.

AU - Galindo-Uribarri, A.

AU - Haslip, D. S.

AU - LaFosse, D. R.

AU - Lampman, T. J.

AU - Lee, I. Y.

AU - Lerma, F.

AU - Macchiavelli, A. O.

AU - Paul, S. D.

AU - Radford, D. C.

AU - Rudolph, D.

AU - Sarantites, D. G.

AU - Svensson, C. E.

AU - Waddington, J. C.

AU - Wilson, J. N.

PY - 1999/9

Y1 - 1999/9

N2 - The yrast superdeformed band in 61Zn has been established using 28Si(36Ar, 2pn)61Zn and 40Ca(29Si, 2α)61Zn fusion-evaporation reactions. The excitation energy of this band was determined via two transitions that link this band to the normally deformed states. Lifetime analysis of this band resulted in a quadrupole moment of Q1 = 3.0±0.50.4e b, which corresponds to a deformation of β2 = 0.50±0.070.06. A comparison of the J(2) dynamical moments of inertia of the yrast superdeformed band in 61Zn with those in 60Zn shows a nearly complete blocking of the observed alignment in 60Zn, indicating that Τ = 0 proton-neutron pair correlations may be present in 60Zn.

AB - The yrast superdeformed band in 61Zn has been established using 28Si(36Ar, 2pn)61Zn and 40Ca(29Si, 2α)61Zn fusion-evaporation reactions. The excitation energy of this band was determined via two transitions that link this band to the normally deformed states. Lifetime analysis of this band resulted in a quadrupole moment of Q1 = 3.0±0.50.4e b, which corresponds to a deformation of β2 = 0.50±0.070.06. A comparison of the J(2) dynamical moments of inertia of the yrast superdeformed band in 61Zn with those in 60Zn shows a nearly complete blocking of the observed alignment in 60Zn, indicating that Τ = 0 proton-neutron pair correlations may be present in 60Zn.

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SP - 313051

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JF - Physical Review C - Nuclear Physics

IS - 3

M1 - 031305

ER -

Comparison of superdeformed bands in ⁶¹Zn and ⁶⁰Zn: Possible evidence for Τ=0 pairing

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