Static versus energy-dependent nucleus-nucleus} potential for description of sub-barrier fusion dynamics of 816O+50112,116,120Sn reactions

Manjeet Singh Gautam

doi:10.1088/1674-1137/39/11/114102

Chinese Physics C> 2015, Vol. 39> Issue(11) : 114102 DOI: 10.1088/1674-1137/39/11/114102

Static versus energy-dependent nucleus-nucleus} potential for description of sub-barrier fusion dynamics of ₈¹⁶O+₅₀^112,116,120Sn reactions

Manjeet Singh Gautam ^,

1.
School of Physics and Material Science, Thapar University, Patiala (Punjab)-147004, India

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Abstract：
The static and energy-dependent nucleus-nucleus potentials are simultaneously used along with the Wong formula for exploration of fusion dynamics of ₈¹⁶O+₅₀^112,116,120Sn reactions. The role of internal structure degrees of freedom of colliding pairs, such as inelastic surface vibrations, are examined within the context of coupled channel calculations performed using the code CCFULL. Theoretical calculations based on the static Woods-Saxon potential along with the one-dimensional Wong formula fail to address the fusion data of ₈¹⁶O+₅₀^112,116,120Sn reactions. Such discrepancies can be removed if one uses couplings to internal structure degrees of freedom of colliding nuclei. However, the energy-dependent Woods-Saxon potential model (EDWSP model) accurately describes the sub-barrier fusion enhancement of ₈¹⁶O+₅₀^112,116,120Sn reactions. Therefore, in sub-barrier fusion dynamics, energy dependence in the nucleus-nucleus potential governs barrier modification effects in a closely similar way to that of the coupled channel approach.
- heavy-ion sub-barrier fusion reactions ,
- depth and diffuseness ,
- {Woods-Saxon} potential ,
- diffuseness anomaly

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Manjeet Singh Gautam. Static versus energy-dependent nucleus-nucleus} potential for description of sub-barrier fusion dynamics of ₈¹⁶O+₅₀^112,116,120Sn reactions[J]. Chinese Physics C, 2015, 39(11): 114102. doi: 10.1088/1674-1137/39/11/114102

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Received: 2015-03-27

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Supported by Dr. D. S. Kothari Post-Doctoral Fellowship Scheme sponsored by University Grants Commission (UGC), New Delhi, India

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沈阳化工大学材料科学与工程学院沈阳 110142

Static versus energy-dependent nucleus-nucleus} potential for description of sub-barrier fusion dynamics of ₈¹⁶O+₅₀^112,116,120Sn reactions

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Static versus energy-dependent nucleus-nucleus} potential for description of sub-barrier fusion dynamics of ₈¹⁶O+₅₀^112,116,120Sn reactions

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