Resonant structures in the excitation functions of the 20Ne(16O, 12C)24Mg reaction

Possible hyperdeformed band inAr36observed inC12Sciani1, Otani2, Lépine‐Szily3 et al. 2009Phys. Rev. C360110View full textAdd to dashboardCite

“…We have found that the experimental data could be nicely reproduced by taking into account five resonances with spins 2, 4, 6, 7, and 8. These states, together with resonances observed previously in the 20 Ne + 16 O reactions [44][45][46], determine a rotational band. Its moment of inertia is very close to that of a hyperdeformed band, provided by α-cluster [49] and Nilsson [30] calculations.…”

Excitation Function for 16O+24Mg Elastic Scattering at ?c.m. = 90°

“…= 90° excitation functions which are out of phase with one another and so allow one to distinguish the sign of the parity-dependent term. One system for which this situation may occur is 160+20Ne (Schimizu et al 1983 for which the elastic scattering at backward angles is not only considerably larger than for 160+24Mg elastic scattering but also exhibits gross structures as a function of energy, unlike 160+24Mg.…”

“…(MeV) The parameters of the absorptive potential were then determined by least-squares fitting of angular distributions at 27·8 and 36· 1 MeV for which both forward and backward angle data are available Siwek-Wilczynska et al 1974). The latter angular distribution comprises forward angle data at 36·0 MeV and backward angle data at 36· 2 MeV.…”

Nonstatistical structures in the excitation functions of20Ne(16O,12C)24Mg and20Ne(16O,20Ne)16O reactions

“…In A = 36 system resonances have been observed through the studies of Z4Mg(lZC, 4He)3ZS reaction [5], and of Z4Mg + l zC and 16 0 + ZONe elastic and inelastic scattering [6,7]. A recent experimental investigation [8] of Z~ lzc)zgMg and Z~ 2~…”

“…The resonant structures in 2~ lzc)zgMg and Z~ 2~ excitation functions were located by calculating the corresponding deviation functions [8]. From the analysis of the data the authors obtained a value of >0.95 for the fraction of cross section contributed by direct reaction (non-compound) by assuming the number of effective channels to be one [8].…”