潘多拉项目：$ a = 60 $的照片 - 核反应

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潘多拉项目：$ a = 60 $的照片 - 核反应

PANDORA project: photo-nuclear reactions below $A=60$

论文作者

Tamii, A., Pellegri, L., Söderström, P. -A., Allard, D., Goriely, S., Inakura, T., Khan, E., Kido, E., Kimura, M., Litvinova, E., Nagataki, S., von Neumann-Cosel, P., Pietralla, N., Shimizu, N., Tsoneva, N., Utsuno, Y., Adachi, S., Adsley, P., Bahini, A., Balabanski, D., Baret, B., Bekker, J. A. C., Binda, S. D., Boicu, E., Bracco, A., Brandherm, I., Brezeanu, M., Brummer, J. W., Camera, F., Crespi, F. C. L., Dalal, R., Donaldson, L. M., Fujikawa, Y., Furuno, T., Haoning, H., Honda, Y., Gavrilescu, A., Inoue, A., Isaak, J., Jivan, H., Jones, P. M., Jongile, S., Just, O., Kawabata, T., Khumalo, T., Kiener, J., Kleemann, J., Kobayashi, N., Koshio, Y., Kuşoğlu, A., Li, K. C. W., Malatji, K. L., Molaeng, R. E., Motoki, H., Murata, M., Netshiya, A. A., Neveling, R., Niina, R., Okamoto, S., Ota, S., Papst, O., Parizot, E., Petruse, T., Reen, M. S., Ring, P., Sakanashi, K., Sideras-Haddad, E., Siem, S., Spall, M., Suda, T., Sudo, T., Taniguchi, Y., Tatischeff, V., Utsunomiya, H., Wang, H., Werner, V., Wibowo, H., Wiedeking, M., Wieland, O., Xu, Y., Yang, Z. H.

论文摘要

Pandora（核的吸收核能吸收和衰减观察到天体物理学中的反应）项目，在实验和理论上研究了质量$ a = 60 $的光核的照片 - 核反应。两种实验方法，即质子散射和真实光子吸收的虚拟光子激发，并通过激光康普顿散射产生的高毛力伽马射线束，用于测量光吸收横截面，以及每个衰减通道的衰减分支比率，每个衰减通道作为光子能量的功能。几种核模型，例如抗对称分子动力学，平均场类型模型，大规模的壳模型和从头算模型将用于预测光核反应。模型预测中的不确定性将从模型预测与实验数据之间的差异中进行评估。数据和预测将在一般反应计算代码中实现。结果将应用于在半乳酸传播中超高能量宇宙射线的光分化过程。

Photo-nuclear reactions of light nuclei below a mass of $A=60$ are studied experimentally and theoretically by the PANDORA (Photo-Absorption of Nuclei and Decay Observation for Reactions in Astrophysics) project. Two experimental methods, virtual-photon excitation by proton scattering and real-photo absorption by a high-brilliance gamma-ray beam produced by laser Compton scattering, will be applied to measure the photo-absorption cross sections and the decay branching ratio of each decay channel as a function of the photon energy. Several nuclear models, e.g. anti-symmetrized molecular dynamics, mean-field type models, a large-scale shell model, and ab initio models, will be employed to predict the photo-nuclear reactions. The uncertainty in the model predictions will be evaluated from the discrepancies between the model predictions and the experimental data. The data and the predictions will be implemented in a general reaction calculation code TALYS . The results will be applied to the simulation of the photo-disintegration process of ultra-high-energy cosmic rays in inter-galactic propagation.

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