Alpha cluster structure in $^{56}$Ni
H. Akimune
,
M. Fujiwara
,
J. Gibelin
(1)
,
M.N. Harakeh
,
N.L. Achouri
(1)
,
S. Bagchi
,
B. Bastin
(2)
,
K. Boretzky
,
H. Bouzomita
(2)
,
L. Caceres
(2)
,
S. Damoy
(2)
,
F. Delaunay
(1)
,
B. Fernández-Domínguez
,
M. Caamano
,
U. Garg
,
G.F. Grinyer
(2)
,
N. Kalantar-Nayestanaki
,
O. Kamalou
(2)
,
E. Khan
(3)
,
A. Krasznahorkay
,
G. Lhoutellier
(1)
,
S. Lukyanov
,
K. Mazurek
,
M. Najafi
,
J. Pancin
(2)
,
Y. Penionzkhevich
,
L. Perrot
(3)
,
R. Raabe
,
C.E. Rigollet
,
T. Roger
(2)
,
S. Sambi
,
H. Savajols
(2)
,
M. Senoville
(1)
,
C. Stodel
(2)
,
L. Suen
,
J.C. Thomas
(2)
,
J. van de Walle
,
M. Vandebrouck
(3)
H. Akimune
- Function : Author
M. Fujiwara
- Function : Author
J. Gibelin
- Function : Author
- PersonId : 11987
- IdHAL : julien-gibelin
- ORCID : 0000-0001-6751-3714
- IdRef : 105736708
M.N. Harakeh
- Function : Author
N.L. Achouri
- Function : Author
- PersonId : 940560
- ORCID : 0000-0003-4411-6796
- IdRef : 069739773
S. Bagchi
- Function : Author
B. Bastin
- Function : Author
- PersonId : 738704
- IdHAL : beyhan-bastin
- ORCID : 0000-0001-5959-0875
- IdRef : 123532752
K. Boretzky
- Function : Author
F. Delaunay
- Function : Author
- PersonId : 740010
- IdHAL : franck-l-delaunay
- ORCID : 0000-0002-1703-2434
- IdRef : 089345819
B. Fernández-Domínguez
- Function : Author
M. Caamano
- Function : Author
U. Garg
- Function : Author
N. Kalantar-Nayestanaki
- Function : Author
A. Krasznahorkay
- Function : Author
- PersonId : 755220
- ORCID : 0000-0002-6252-6070
S. Lukyanov
- Function : Author
K. Mazurek
- Function : Author
M. Najafi
- Function : Author
Y. Penionzkhevich
- Function : Author
R. Raabe
- Function : Author
C.E. Rigollet
- Function : Author
T. Roger
- Function : Author
- PersonId : 738433
- IdHAL : thomas-roger
- ORCID : 0000-0003-4646-5076
S. Sambi
- Function : Author
H. Savajols
- Function : Author
- PersonId : 741727
- IdHAL : herve-savajols
- ORCID : 0000-0003-0534-0920
- IdRef : 180822993
C. Stodel
- Function : Author
- PersonId : 177922
- IdHAL : christelle-stodel
- ORCID : 0000-0003-4658-2213
- IdRef : 227006291
L. Suen
- Function : Author
J.C. Thomas
- Function : Author
- PersonId : 738662
- IdHAL : jean-charles-thomas
- ORCID : 0000-0001-6618-9772
J. van de Walle
- Function : Author
Abstract
The inelastic $\alpha$−scattering experiment on 56Ni in inverse kinematics was performed at an incident energy of 50 MeV/u at GANIL. A very high multiplicity for $\alpha$−particle emission was observed with our phase-space limited experimental set-up. The maximum observed multiplicity, which cannot be explained by means of the statistical decay model, amounted to seven. The ideal classical gas model at kT = 3 MeV fairly well reproduced the experimental momentum distribution and multiplicity of alpha particles. This result strongly suggests that an alpha-gas state in 56Ni may be excited via inelastic alpha scattering.