Abstract.
Energy spectra of light charged particles emitted in the reaction \(p + {}^{27}\mathrm{Al} \rightarrow {}^{28}\mathrm{Si}^{\ast}\) have been studied and compared with statistical model calculation. Unlike 16O + 12C where a large deformation was observed in 28Si*, the energy spectra of \(\alpha\)-particles were well explained by the statistical model calculation with standard “deformability parameters” obtained using the rotating liquid drop model. It seems that the \(\alpha\)-clustering in the entrance channel causes extra deformation in 28Si* in the case of 16O + 12C, but the reanalysis of other published data shows that there are several cases where extra deformation was observed for composites produced via non-\(\alpha\)-cluster entrance channels also. An empirical relation was found between mass-asymmetry in the entrance channel and deformation, which indicates that along with \(\alpha\)-clustering, mass-asymmetry may also affect the emission of a light charged particle.
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Kundu, S., Bhattacharya, C., Rana, T.K. et al. Effect of clustering on the emission of light charged particles. Eur. Phys. J. A 54, 63 (2018). https://doi.org/10.1140/epja/i2018-12494-5
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DOI: https://doi.org/10.1140/epja/i2018-12494-5