Lifetime measurement of the first excited 2+ state in 16C.
The lifetime of the 2_+(1) state in 16C has been measured with the recoil distance method using the 9Be(9Be,2p) fusion-evaporation reaction at a beam energy of 40 MeV. The mean lifetime was measured to be 11.7(20) ps corresponding to a B(E2;2_+(1)-->0+) value of 4.15(73)e_2 fm_4 [1.73(30) W.u.], consistent with other even-even closed shell nuclei. Our result does not support an interpretation for "decoupled" valence neutrons.
Wiedeking
M
M
Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
Fallon
P
P
Macchiavelli
A O
AO
Gibelin
J
J
Basunia
M S
MS
Clark
R M
RM
Cromaz
M
M
Deleplanque
M-A
MA
Gros
S
S
Jeppesen
H B
HB
Lake
P T
PT
Lee
I-Y
IY
Moretto
L G
LG
Pavan
J
J
Phair
L
L
Rodriguez-Vietiez
E
E
Bernstein
L A
LA
Bleuel
D L
DL
Burke
J T
JT
Lesher
S R
SR
Lyles
B F
BF
Scielzo
N D
ND