$\gamma$ Spectroscopy of $^{209}$Pb with deep inelastic reactions

M. Rejmund; K.H. Maier; R. Broda; B. Fornal; M. Lach; J. Wrzesiński; J. Blomqvist; A. Gadea; J. Gerl; M. Górska; H. Grawe; M. Kaspar; H. Schaffner; Ch. Schlegel; R. Schubart; H.J. Wollersheim

doi:doi:10.1007/s100500050060

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2024 Impact factor 2.8

Hadrons and Nuclei

Eur. Phys. J. A 1, 261-266

$\gamma$ Spectroscopy of ²⁰⁹Pb with deep inelastic reactions

M. Rejmund^1,2 - K.H. Maier³ - R. Broda⁴ - B. Fornal⁴ - M. Lach⁴ - J. Wrzesinski⁴ - J. Blomqvist⁵ - A. Gadea⁶ - J. Gerl¹ - M. Górska^1,2 - H. Grawe¹ - M. Kaspar¹ - H. Schaffner¹ - Ch. Schlegel¹ - R. Schubart¹ - H.J. Wollersheim¹

¹ Gesellschaft für Schwerionenforschung, Planck Strasse 1, D-64291 Darmstadt, Germany
² Nuclear Physics Division, Institute of Experimental Physics, Warsaw University, Poland
³ Hahn-Meitner-Institut, Berlin, Germany
⁴ Niewodniczanski Institute of Nuclear Physics, Cracow, Poland
⁵ Royal Institute of Technology, Physics Department Frescati, Stockholm, Sweden
⁶ Instituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Legnaro, Italy

Received: 22 November 1997 Communicated by D. Schwalm

Abstract
High spin states in nuclei around $^{208}{\rm Pb}$ were populated in deep inelastic collisions of $^{76}{\rm Ge}$ , $^{136}{\rm Xe}$ , and $^{208}{\rm Pb}$ projectiles with $^{208}{\rm Pb}$ targets at beam energies about 12% above the Coulomb barrier. New states in $^{209}{\rm Pb}$ were found by measuring $\gamma$ - $\gamma$ -coincidences. They are interpreted as the yrast states that originate from the coupling of one neutron to the lowest excitations of the $^{208}{\rm Pb}$ core. The results are discussed in the frame of the shell model.

PACS
21.60.Cs Shell model - 23.20.Lv Gamma transitions and level energies - 27.80.+w $190 \le A \le 219$ - 25.70.-z Low and intermediate energy heavy-ion reactions