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Correlation Between the Intrinsic Fusion Barriers and Observed Excitation Functions of Evaporation Residue

  • Nuclear Physics
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Abstract

A correlation between the intrinsic fusion barriers as a function of the incident energy and the observed excitation functions of fusion-evaporation residues has been obtained by investigating eleven arbitrarily chosen heavy-ion fusion-evaporation reactions forming compound nuclei in the heavy and superheavy mass region. The intrinsic fusion barrier for a given heavy-ion reaction and incident energy is calculated from the fragmentation potential of the compound nucleus at its critical angular momentum. The fragmentation potentials are calculated by assuming that the fragments are spherical in shape for the reactions leading to the formation of compound nuclei in the heavy mass region and deformed and oriented in the superheavy mass region. It is found that the incident energy for which the intrinsic fusion barrier is minimum or close to the minimum value corresponds to the maximum of the measured fusion-evaporation residue cross-section. This calculated energy can be a suitable energy for synthesizing new elements; here, it is done for Z = 119 and is in good agreement with the estimates available in the literature.

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Acknowledgements

The authors are thankful to the Central University of Himachal Pradesh for providing the necessary facility for completing this work.

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Author notes

  1. Vivek and Pooja Chauhan contributed equally to this work.

Authors and Affiliations

  1. Department of Physics and Astronomical Science, Central University of Himachal Pradesh, District Kangra, Dharamshala, (Himachal Pradesh), 176215, India

    Dalip Singh Verma,  Vivek & Pooja Chauhan

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  1. Dalip Singh Verma
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  2. Vivek
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Correspondence to Dalip Singh Verma.

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Verma, D.S., Vivek & Chauhan, P. Correlation Between the Intrinsic Fusion Barriers and Observed Excitation Functions of Evaporation Residue. Braz J Phys 53, 109 (2023). https://doi.org/10.1007/s13538-023-01319-4

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