Speaker
Dr
Marine Vandebrouck
(GANIL)
Description
The study of the Isoscalar Giant Monopole Resonance (ISGMR) and the Isoscalar Giant Quadrupole Resonance (ISGQR) in stable nuclei provided relevant information on both nuclear matter and nuclear structure in past decades. For instance the ISGMR centroid can be linked to the incompressibility modulus of the infinite nuclear matter. Values for exotic nuclei would help in constraining it. In unstable nuclei, measurements in $^{56}$Ni have been performed [1-2]. In order to study the evolution of the ISGMR and the ISGQR along an isotopic chain, measurements in neutron-rich Ni are called for.
To reach this goal, a dedicated experiment was performed at GANIL. A $^{68}$Ni beam at 50AMeV and with an intensity of 10000pps has been produced on LISE beamline. The inelastic scattering of deuteron and alpha particles on $^{68}$Ni in inverse kinematics has been studied with the active target MAYA [3-4]. It is the first attempt to measure the ISGMR in an unstable neutron-rich nucleus. Results concerning the inelastic scattering reaction in deuterons gas and in alpha gas will be shown, and the measurement of the ISGQR, ISGMR and indication of a soft mode will be discussed.
REFERENCES
[1] C. Monrozeau et al., Phys. Rev. Lett. 100, 042501 (2008).
[2] S. Bagchi et al. Phys. Lett. B 751, 371 (2015)
[3] M. Vandebrouck et al., Phys. Rev. Lett. 113, 032504 (2014).
[4] M. Vandebrouck et al. Phys. Rev. C 92, 024316 (2015)
Primary authors
Prof.
Elias Khan
(IPNO)
Dr
Julien Gibelin
(LPC Caen)
Dr
Marine Vandebrouck
(GANIL)
Co-authors
Dr
B. Fernandez-Dominguez
(Universidade de Compostela)
Dr
C. Stodel
(GANIL)
Dr
D. Beaumel
(IPNO)
Dr
D. Suzuki
(IPNO)
Dr
F. Delaunay
(LPC Caen)
Prof.
G. Colò
(INFN)
Dr
G. F. Grinyer
(GANIL)
Dr
H. Baba
(RIKEN)
Dr
H. Savajols
(GANIL)
Dr
J. C. Thomas
(GANIL)
Dr
J. Pancin
(GANIL)
Dr
L. Càceres
(GANIL)
Dr
M. Caamano
(Universidade de Compostela)
Prof.
M. N. Harakeh
(KVI-CART)
Dr
N. Kalantar-Nayestanaki
(KVI-CART)
Dr
N. Keeley
(National Centre for Nuclear Research ul. Andrzeja Soltana)
Dr
N. L. Achouri
(LPC Caen)
Dr
O. Sorlin
(GANIL)
Dr
P. Roussel-Chomaz
(CEA Saclay)
Prof.
R. Raabe
(KU Leuven)
Dr
T. Roger
(GANIL)
Prof.
U. Garg
(University of Notre Dame)
Prof.
W. Mittig
(NSCL MSU)
Dr
Y. Blumenfeld
(IPNO)
