Neutron quadrupole transition strength in C10 deduced from the C10(α,

Abstract

Elastic and inelastic alpha scatterings on 10 C were measured using a 68-MeV/u radioactive 10 C beam incident on the recently developed MAIKo active target system. The phenomenological effective α-N interaction and the point-nucleon density distribution in the ground state were determined from the elastic scattering data. The cross sections of the inelastic alpha scattering were calculated using this interaction and density distribution and were compared with the experiment to determine the neutron quadrupole transition matrix element M n between the ground state and the 2 + 1 state at E x = 3.35 MeV in 10 C. The deduced neutron transition matrix element is M n = 6.9 ± 0.7 (fit) ± 1.2 (sys) fm 2. The ratio of the neutron transition strength to proton transition strength was determined as M n /M p = 1.05 ± 0.11 (fit) ± 0.17 (sys), which indicates that the quadrupole transition between the ground state and the 2 + 1 state in 10 C is less neutron dominant compared to that in 16 C.

Photodisintegration cross section of He4 in the giant dipole resonance energy region

“…In addition, the uncertainty from the efficiency estimations due to the incompleteness of the Monte Carlo simulations was approximately 10%, which is taken from Ref. [52]. As discussed in Sec.…”

Comprehensive examination of the elastic scattering angular distributions of 10C+4He, 27Al, 58Ni and 208Pb using various potentials.

“…In this context, the same observations have been reported in Refs. [47][48][49][50][51]62,63]. The neglect of transferring nucleon from projectile to the target during the breakdown process might be the cause of the discrepancy, as stated in Ref.…”

“…The available experimental elastic scattering angular distributions for the 10 C + 4 He, 10 C + 27 Al, 10 C + 58 Ni and 10 C + 208 Pb systems at different energies [47][48][49][50][51] are subjected to a detailed analysis using different phenomenological, semimicroscopic, and microscopic potentials in order to observe the weak nature of the 10 C projectile on the elastic scattering data.…”

“…Many reactions involving 10 C have been thoroughly investigated using both experimental and theoretical methods. Furuno et al [47], for example published elastic and inelastic scattering measurements of 10 C on 4 He reaction at 68 MeV/n as well as thorough analysis. At 35.5 MeV, V. Guimarães et al [48] measured and examined the elastic scattering cross sections of 10 C on 58 Ni.…”

Search for $α$ condensed states in $^{13}$C using $α$ inelastic scattering

“…However, the recent systematic analysis of the α inelastic scattering demonstrated that the cross sections for the IS0 transitions tended to be overestimated when the density-dependent interaction was used [26]. A more recent analysis of the α inelastic scattering off 10 C employed the density-independent interaction to deduce the IS2 transition strength from the ground state to the 2 + 1 state [44].…”