High spin states above the $\alpha$-decaying isomer in $^{211}$Po

B. Fornal; R. Broda; W. Królas; T. Pawłat; J. Wrzesiński; P.J. Daly; P. Bhattacharyya; Z.W. Grabowski; C.T. Zhang; D. Bazzacco; S. Lunardi; C. Rossi Alvarez; G. de Angelis; D.R. Napoli

doi:doi:10.1007/s100500050069

EPJ

High spin states above the $\alpha$ -decaying isomer in ²¹¹Po

B. Fornal¹ - R. Broda¹ - W. Królas¹ - T. Paw $\l$ at¹ - J. Wrzesinski¹ - P.J. Daly² - P. Bhattacharyya² - Z.W. Grabowski² - C.T. Zhang² - D. Bazzacco³ - S. Lunardi³ - C. Rossi Alvarez³ - G. de Angelis⁴ - D.R. Napoli⁴

¹ H. Niewodniczanski Institute of Nuclear Physics, PL-31-342 Kraków, Poland
² Chemistry and Physics Departments, Purdue University, West Lafayette, IN 47907, USA
³ Dipartimento di Fisica dell'Universitá and INFN Sezione di Padova, I-35131 Padova, Italy
⁴ INFN Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy

Received: 22 September 1997 Communicated by C. Singorini

Abstract
Prompt and delayed $\gamma$ -rays in nuclei of the ²⁰⁸Pb region produced in 450 MeV ⁷⁶Ge + ²⁰⁸Pb collisions have been studied at GASP. Yrast states above the $\alpha$ -decaying isomer in ²¹¹Po have been located including a 0.25 $\mu$ s 31/2^- isomer at 2135 keV and a 2 $\mu$ s isomer at 4874 keV.

PACS
21.60.Cs Shell model - 23.20.Lv Gamma transitions and level energies - 27.80.+w $190 \le A \le 219$ - 25.70.Lm Strongly damped collisions

12 Internat. Congress of the Balkan Physical Union
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High spin states above the $\alpha$ -decaying isomer in ²¹¹Po

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High spin states above the -decaying isomer in 211Po

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High spin states above the $\alpha$ -decaying isomer in ²¹¹Po