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Effect of clustering on the emission of light charged particles

  • Regular Article - Experimental Physics
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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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Authors and Affiliations

  1. Variable Energy Cyclotron Centre, 1/AF, Bidhan Nagar, 700 064, Kolkata, India

    Samir Kundu, C. Bhattacharya, T. K. Rana, S. Bhattacharya, R. Pandey, K. Banerjee, Pratap Roy, J. K. Meena, G. Mukherjee, T. K. Ghosh, S. Mukhopadhyay, A. K. Saha, J. K. Sahoo, R. Mandal Saha, V. Srivastava, M. Sinha & Md. A. Asgar

  2. Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, 400 094, Mumnai, India

    Samir Kundu, C. Bhattacharya, K. Banerjee, Pratap Roy, G. Mukherjee, T. K. Ghosh & S. Mukhopadhyay

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  1. Samir Kundu
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  2. C. Bhattacharya
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Correspondence to Samir Kundu.

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Communicated by A. Di Pietro

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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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