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Influence of nuclear size on nuclear dynamics, peak mass production’s energy and onset of multifragmentation

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Abstract

The effect of nuclear size on different observables in fragmentation reactions is investigated using the quantum molecular dynamics approach. The present study is carried out using \(^{36, 37}\)Mg projectiles on various target nuclei ranging from \(^{27}\)Al to \(^{80}\)Br over a wide range of incident energies. Our findings revealed a significant influence (\(\sim \)20\(\%\)) of nuclear size on the energy of peak mass production in reactions involving lighter nuclei and this effect of nuclear size decreases for heavier targets. The role of nuclear size on the onset of multifragmentation is also investigated. Various order parameters, such as slopes of charge distribution and moments are seen to get influenced by this initialisation effect. However, the energy of the onset of multifragmentation in \(^{37}\)Mg\(\,+\,^{27}\)Al reaction is observed to be independent of nuclear size.

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Acknowledgements

SG acknowledges the partial support of Council of Scientific and Industrial Research (CSIR) vide Project No. 03/1513/2023/EMR-II.

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Authors and Affiliations

  1. Department of Physics, Panjab University, Chandigarh, 160 014, India

    Sucheta & Sakshi Gautam

  2. Department of Physics, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Secunderabad, 500 078, India

    Sakshi Gautam

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  1. Sucheta
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Correspondence to Sucheta.

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Sucheta, Gautam, S. Influence of nuclear size on nuclear dynamics, peak mass production’s energy and onset of multifragmentation. Pramana - J Phys 98, 56 (2024). https://doi.org/10.1007/s12043-024-02729-y

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