Entry distribution, fission barrier, and formation mechanism of 254102No
The entry distribution in angular momentum and excitation energy for the formation of 254No has been measured after the 208Pb(48Ca,2n) reaction at 215 and 219 MeV. This nucleus is populated up to spin 22Planck's over 2pi and excitation energy greater, similar6 MeV above the yrast line, with the half-maximum points of the energy distributions at approximately 5 MeV for spins between 12Planck's over 2pi and 22Planck's over 2pi. This suggests that the fission barrier is greater, similar5 MeV and that the shell-correction energy persists to high spin.
Reiter
P
Argonne National Laboratory, Argonne, Illinois 60439 and Ludwig-Maximilians-Universitat, Am Coulombwall 1, D-85748 Garching, Germany.
Khoo
TL
Lauritsen
T
Lister
CJ
Seweryniak
D
Sonzogni
AA
Ahmad
I
Amzal
N
Bhattacharyya
P
Butler
PA
Carpenter
MP
Chewter
AJ
Cizewski
JA
Davids
CN
Ding
KY
Fotiades
N
Greene
JP
Greenlees
PT
Heinz
A
Henning
WF
Herzberg
R
Janssens
RV
Jones
GD
Kondev
FG
Korten
W
Leino
M