Article

Single and multi-quasiparticle states in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow/><mml:mrow><mml:mn>181</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mi mathvariant="normal">Ta</mml:mi></mml:math>from incomplete fusion

G.D. DracoulisDepartment of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, A.C.T. 0200, AustraliaA.P. ByrneDepartment of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, A.C.T. 0200, AustraliaS. M. MullinsDepartment of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, A.C.T. 0200, AustraliaT. KibédiDepartment of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, A.C.T. 0200, AustraliaF. G. KondevDepartment of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, A.C.T. 0200, AustraliaP. M. DavidsonDepartment of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, A.C.T. 0200, Australia

1998lv

ABI

Abstract

Excited states in ${}^{181}\mathrm{Ta}$ have been identified using time-correlated $\ensuremath{\gamma}$-ray spectroscopy and particle-$\ensuremath{\gamma}$ techniques following the incomplete fusion reaction ${}^{176}\mathrm{Yb}{(}^{11}\mathrm{B},\ensuremath{\alpha}{2n)}^{181}\mathrm{Ta}.$ As well as observing the rotational band based on the 11 ns isomer at 482 keV from the ${5/2}^{+}[402]$ proton configuration, which is found to be essentially identical to that associated with its ${7/2}^{+}[404]$ pseudospin partner, several multi-quasiparticle isomers are observed including a $33 \ensuremath{\mu}\mathrm{s}$ state, of probable spin and parity ${21/2}^{\ensuremath{-}},$ at 1483 keV. Experimental states are compared with multi-quasiparticle calculations.

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Identifiers

DOI: 10.1103/physrevc.58.1837

Citations and references

Cited by 20 references

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