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arXiv 0812.2781nucl-th
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$^{14}$ Be的单中子敲除反应的光谱学

Spectroscopy of the unbound: One-neutron knockout reaction of $^{14}$Be

R. Crespo, A. Deltuva, M. Rodríguez-Gallardo, E. Cravo, A. C. Fonseca

摘要:

对入射能量为69 MeV/u的$^{14}$ Be与质子靶的单中子敲除反应进行了全Faddeev型计算。给出了出射($^{12}$ Be + n)系统的包含横动量分布和半包含截面。一个显着的质子核单散射的贡献出现在价中子有非零角动量相对于核心。这表明,扭曲波脉冲近似是不够的,完整的多次散射系列必须考虑所考虑的反应。在准自由散射条件下,半包含截面的大小是价核子角动量的明显标志。

英文摘要:

Full Faddeev-type calculations are performed for one-neutron knockout reaction of $^{14}$Be on proton target at 69 MeV/u incident energy. Inclusive transverse momentum distributions for the outgoing ($^{12}$Be + n) system and semi-inclusive cross sections are presented. A significant proton-core single scattering contribution emerges where the valence neutron has non zero angular momentum relative to the core. This indicates that distorted-wave impulse approximation is inadequate and the complete multiple scattering series must be taken into account for the considered reaction. The magnitude of the semi-inclusive cross section at quasifree scattering conditions is a clear signature of the angular momentum of the valence nucleon.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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