Nuclear moments of the first excited state of ${}^{22}{Ne}$ from ${}^{22}{Ne}$ (132 MeV) + ${}^{208}{Pb}$ scattering

Elastic and inelastic cross section data for exciting the

{}^{22}{Ne}

2_{1}^{+}

(1.27 MeV) state by 132 MeV

{}^{22}{Ne}

scattering from a

{}^{208}{Pb}

target are presented. The data are analyzed by a rotational model coupled-channels calculation including the

0^{+}

ground state and the

2_{1}^{+}

, and

4_{1}^{+}

states of

{}^{22}{Ne}

. We extract

β_{2}

and

β_{4}

deformation parameters, as well as

M (E 2; 0^{+} - 2_{1}^{+}), M (E 2; 2_{1}^{+} - 2_{1}^{+}), M (E 4; 0^{+} - 4_{1}^{+})

, and

M (E 2; 2_{1}^{+} - 4_{1}^{+})

matrix elements for

{}^{22}{Ne}

and compare these quantities to those obtained for

{}^{20}{Ne}

. The extracted

2_{1}^{+}

reorientation matrix element is considerably larger than shell-model predictions. Addition of a negative spin-orbit potential improves the fit to the

2_{1}^{+}

differential cross section.

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Nuclear moments of the first excited state ofNe22fromNe22(132 MeV) +Pb208scattering