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arXiv · 2407.19792

Measurement of the Sequential $3\alpha$ Process in the Photodissociation of $^{12}\mathrm{C}$

Resmi K. Bharathan·Midhun C. V·M. M Musthafa·Sreena M·Silpa Ajaykumar·Farhana Thesni M. P·Swapna B·Vafiya Thaslim T. T·Shaima A·Nived K·Akhil R·Anagha P. K·Arunima Dev T. V·Keerthi E. S·Akshay K. S·Arun P. V·S. Ghugre
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Abstract

The cross sections for the $^{12}\mathrm{C}(\gamma,\alpha)^{8}\mathrm{Be}\rightarrow 3\alpha$ reaction have been successfully measured using exclusive coincidence between three $\alpha$ particles, minimizing Compton background. Sequential breakup kinematics are evident, and the cross sections are presented as locally averaged histogram values. Theoretical \textsc{Fresco} CDCC-CRC calculations reproduce the experimental data, showing that the process involves electromagnetic coupling to both $^{8}\mathrm{Be}^{0^+}$ and $^{8}\mathrm{Be}^{2^+}$ states. This study confirms that the $^{12}\mathrm{C}(\gamma,\alpha)^{8}\mathrm{Be}\rightarrow 3\alpha$ reaction proceeds via a sequential mechanism, crucial for understanding its significance in radiotherapy dosimetry.

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Resmi K. Bharathan, Midhun C. V, M. M Musthafa, Sreena M, Silpa Ajaykumar, Farhana Thesni M. P, Swapna B, Vafiya Thaslim T. T, Shaima A, Nived K, Akhil R, Anagha P. K, Arunima Dev T. V, Keerthi E. S, Akshay K. S, Arun P. V, S. Ghugre. 2024-07-29. Measurement of the Sequential $3\alpha$ Process in the Photodissociation of $^{12}\mathrm{C}$. https://arxiv.org/abs/2407.19792

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