Shape coexistence at the proton drip-line: First identification of excited states in 180Pb

P. Rahkila (1) , D. G. Jenkins (2) , J. Pakarinen (3) , C. Gray-Jones (3) , P. T. Greenlees (1) , U. Jakobsson (1) , P. Jones (1) , R. Julin (1)

show 29 more authors

S. Juutinen (1) S. Ketelhut (1) H. Koivisto (1) M. Leino (1) P. Nieminen (1) M. Nyman (1) P. Papadakis (3) S. Paschalis (3) M. Petri (3) P. Peura (1) O. J. Roberts (2) T. Ropponen (1) P. Ruotsalainen (1) J. Saren (1) C. Scholey (1) J. Sorri (1) A. G. Tuff (2) J. Uusitalo (1) R. Wadsworth (2) M. Bender (4) P.-H. Heenen (5) ((1) University of Jyvaskyla Finland (2) University of York U.K. (3) University of Liverpool (4) Universite Bordeaux/CNRS/IN2P3 France (5) Universite Libre de Bruxelles Belgium)

Authors on Pith no claims yet

classification ⚛️ nucl-ex

keywords beyondexcitedfirststatesacceleratorachievablearraybeen

0 comments

read the original abstract

Excited states in the extremely neutron-deficient nucleus, 180Pb, have been identified for the first time using the JUROGAM II array in conjunction with the RITU recoil separator at the Accelerator Laboratory of the University of Jyvaskyla. This study lies at the limit of what is presently achievable with in-beam spectroscopy, with an estimated cross-section of only 10 nb for the 92Mo(90Zr,2n)180Pb reaction. A continuation of the trend observed in 182Pb and 184Pb is seen, where the prolate minimum continues to rise beyond the N=104 mid-shell with respect to the spherical ground state. Beyond mean-field calculations are in reasonable correspondence with the trends deduced from experiment.

This paper has not been read by Pith yet.

Shape coexistence at the proton drip-line: First identification of excited states in 180Pb

discussion (0)