Deconstructing the emission order of protons, neutrons and $\alpha$-particles following fusion in $^{28,30,32}$Si + $^{28}$Si

Rohit Kumar; H. Desilets; J. E. Johnstone; S. Hudan; D. Chattopadhyay; R. T. deSouza; D. Ackermann; M. Basson; K. W. Brown; A. Chbihi; K. J. Cook; M. Famiano; T. Genard; I. M. Harca; S. N. Paneru

arXiv · 2501.00963

Deconstructing the emission order of protons, neutrons and $\alpha$-particles following fusion in $^{28,30,32}$Si + $^{28}$Si

Rohit Kumar·H. Desilets·J. E. Johnstone·S. Hudan·D. Chattopadhyay·R. T. deSouza·D. Ackermann·M. Basson·K. W. Brown·A. Chbihi·K. J. Cook·M. Famiano·T. Genard·I. M. Harca·S. N. Paneru

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Abstract

A high-quality measurement of proton and $\alpha$-particle emission associated with fusion of $^{28,30,32}$Si with a $^{28}$Si target is described. Evaporation residues produced by de-excitation of the compound nucleus were identified by an energy time-of-flight (ETOF) measurement while emitted light-charged particles were identified using the $\Delta$E-E technique. Comparison of the experimentally measured charged particle multiplicities and energy spectra with the predictions of the statistical decay model code, GEMINI++, allows one to deduce interesting details of the de-excitation cascade and its dependence on neutron-excess. The impact of modifying the sequence of particle emissions on the average energy and multiplicity is examined.

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Rohit Kumar, H. Desilets, J. E. Johnstone, S. Hudan, D. Chattopadhyay, R. T. deSouza, D. Ackermann, M. Basson, K. W. Brown, A. Chbihi, K. J. Cook, M. Famiano, T. Genard, I. M. Harca, S. N. Paneru. 2025-01-01. Deconstructing the emission order of protons, neutrons and $\alpha$-particles following fusion in $^{28,30,32}$Si + $^{28}$Si. https://arxiv.org/abs/2501.00963

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