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

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 ar...

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Bibliographic Details
Published in:arXiv.org 2024-07
Main Authors: Bharathan, Resmi K, Midhun, C V, Musthafa, M M, Sreena, M, Ajaykumar, Silpa, Farhana Thesni M P, Swapna, B, Vafiya Thaslim T T, Shaima, A, Nived, K, Akhil, R, Anagha, P K, Arunima, Dev T, Keerthi, E S, Akshay, K S, Arun, P V, Ghugre, S
Format: Article
Language:English
Subjects:
Alpha rays
Cross-sections
Electromagnetic coupling
Kinematics
Photodissociation
Radiation therapy
Online Access:Get full text
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Summary: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.
ISSN:2331-8422