Search for resonances in the¹⁴C+¹⁶O reaction

Abstract

Elastic excitation functions have been measured for the ' I C + '€0 colliding system at incident energies from 38-54 MeV in energy steps of 1 MeV. Evidence was found for resonances at Ecm = 18.2, 19.1, 22.9 and 23.8 MeV, to which a Legendre polynomial analysis allowed the assignment of L = 11, 13, 17 and (15)respectively. The data were compared to model predictions: good agreement was found with the group theoretical approach to resonances and, equivalently, with the anharmonic vibrator-rotator model.

The resonant behaviour of the heavy-ion reaction14C +16O

“…The changes occur between two valleys, one which remains roughly stationary around 80 ~ and the other which starts near 70 ~ but moves regularly towards smaller angles with increasing energy. 3 where the comparison is with recently published data by Abbondanno et al [5]. At the lowest energy there is only one maximum between the two valleys; at the highest energy there are four.…”

“…These distributions evolve in a simple systematic way. [1] (see also [8]) and d from [5] A comparison between two of these elastic angular distributions and those of other authors is shown in Fig. 2) the angular distributions do not change drastically.…”

“…The 14C + 160 reaction is one of the exceptions to this rule and in spite of the difficulties associated with the use of a radioactive beam or target a number of studies of its resonant behaviour [1][2][3][4][5] have been reported. The 14C + 160 reaction is one of the exceptions to this rule and in spite of the difficulties associated with the use of a radioactive beam or target a number of studies of its resonant behaviour [1][2][3][4][5] have been reported.…”

Role of the number of open channels in the dynamics of the dinucleus binary decay

“…7). The weak absorption allowed by small NOC's permits the quasimolecular structures to show up experimentally inelastic and quasielastic channels of the C+ C [90 -92], C+ C [92 -94], and C+ 0 [84,95] reactions. Similar calculated results have been obtained for the N induced reactions, this nucleus having a relatively stable configuration with a closed neutron shell and a high-energy first excited state.…”

Airy structure in $^{16}$O+$^{14}$C nuclear rainbow scattering

“…From this similarity, Airy minima with orders higher than A3 are likely to exist below E L =115 MeV before the transition into the molecular resonances with the 16 O+ 14 C structure that have been observed in the E c.m. =30 MeV region [34,35].…”