Elastic scattering and reaction mechanisms of the halo nucleus 11Be around the Coulomb barrier.
Collisions induced by (9,10,11)Be on a 64Zn target at the same c.m. energy were studied. For the first time, strong effects of the 11Be halo structure on elastic-scattering and reaction mechanisms at energies near the Coulomb barrier are evidenced experimentally. The elastic-scattering cross section of the 11Be halo nucleus shows unusual behavior in the Coulomb-nuclear interference peak angular region. The extracted total-reaction cross section for the 11Be collision is more than double the ones measured in the collisions induced by (9,10)Be. It is shown that such a strong enhancement of the total-reaction cross section with 11Be is due to transfer and breakup processes.
Di Pietro
A
A
INFN-Laboratori Nazionali del Sud and Sezione di Catania, Catania, Italy.
Randisi
G
G
Scuderi
V
V
Acosta
L
L
Amorini
F
F
Borge
M J G
MJ
Figuera
P
P
Fisichella
M
M
Fraile
L M
LM
Gomez-Camacho
J
J
Jeppesen
H
H
Lattuada
M
M
Martel
I
I
Milin
M
M
Musumarra
A
A
Papa
M
M
Pellegriti
M G
MG
Perez-Bernal
F
F
Raabe
R
R
Rizzo
F
F
Santonocito
D
D
Scalia
G
G
Tengblad
O
O
Torresi
D
D
Maira Vidal
A
A
Voulot
D
D
Wenander
F
F
Zadro
M
M