Effective Charge of the <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi mathvariant="italic">π</mi><mrow><msub><mrow><mi mathvariant="italic">h</mi></mrow><mrow><mn>11</mn><mi>/</mi><mn>2</mn></mrow></msub></mrow></math></span> Orbital and the Electric Field Gradient of Hg from the Yrast Structure of <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi>H</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>206</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow><mi>g</mi></math></span>

B. Fornal; R. Broda; K. H. Maier; J. Wrzesiński; G. J. Lane; M. Cromaz; A. O. Macchiavelli; R. M. Clark; K. Vetter; A. P. Byrne; G. D. Dracoulis; M. P. Carpenter; R. V. F. Janssens; I. Wiedenhoever; M. Rejmund; J. Blomqvist

doi:10.1103/PhysRevLett.87.212501

Effective Charge of the $π h_{11 / 2}$ Orbital and the Electric Field Gradient of Hg from the Yrast Structure of ${}^{206}H g$

B. Fornal, R. Broda, K. H. Maier, J. Wrzesiński, G. J. Lane, M. Cromaz, A. O. Macchiavelli, R. M. Clark, K. Vetter, A. P. Byrne, G. D. Dracoulis, M. P. Carpenter, R. V. F. Janssens, I. Wiedenhoever, M. Rejmund, and J. Blomqvist

Phys. Rev. Lett. 87, 212501 – Published 2 November 2001

Abstract

The $γ$ -ray decay of excited states of the two-proton hole nucleus, $^{206} Hg$ , has been identified using Gammasphere and $^{208} Pb +^{238} U$ collisions. The yrast states found include a $T_{1 / 2} = 92 (8) ns$ $10^{+}$ isomer located above the known $5^{-}$ isomer. The $B ({E 2; 10}^{+} \to 8^{+})$ strength is used to derive the quadrupole polarization charge induced by the $h_{11 / 2}$ proton hole. Also, the implied quadrupole moment has been used to provide an absolute scale for the electric field gradient of Hg in Hg metal.

Received 30 April 2001

DOI:https://doi.org/10.1103/PhysRevLett.87.212501

Authors & Affiliations

B. Fornal, R. Broda, K. H. Maier^*, and J. Wrzesiński

Niewodniczański Institute of Nuclear Physics, PL-31342 Cracow, Poland

G. J. Lane, M. Cromaz, A. O. Macchiavelli, R. M. Clark, and K. Vetter

Lawrence Berkeley National Laboratory, Berkeley, California 94720

A. P. Byrne^† and G. D. Dracoulis

Department of Nuclear Physics, Australian National University, Canberra ACT 0200, Australia

M. P. Carpenter, R. V. F. Janssens, and I. Wiedenhoever

Physics Division, Argonne National Laboratory, Argonne, Illinois 60439

M. Rejmund

Dapnia/SPhN, CEA Saclay, F91191 Gif-sur-Yvette Cedex, France

J. Blomqvist

Department of Physics Frescati, Royal Institute of Technology, S-10405 Stockholm, Sweden

^*On leave from Hahn-Meitner Institute, Berlin, Germany.
^†Also at Department of Physics, Australian National University, Canberra ACT 0200, Australia.