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arXiv 1409.0337nucl-thcond-mat.quant-gasnucl-exphysics.atom-ph
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破裂阈值以上四核子系统多道反应的计算

Calculation of multichannel reactions in the four-nucleon system above breakup threshold

A. Deltuva, A. C. Fonseca

摘要:

在高于四核子破裂阈值的能量范围内,求解了Alt、Grassberger和Sandhas的精确四体方程,计算了中子- ${}^3\mathrm{He}$和质子- ${}^3\mathrm{H}$的散射.弹性,转移,电荷交换和分裂反应的横截面和自旋可观的计算使用现实的核子核子相互作用模型,包括一个有效的多核子力,由于明确的$Δ$ -同量异位素激发。实验数据描述合理,只有少数例外,如矢量分析的权力。

英文摘要:

Exact four-body equations of Alt, Grassberger and Sandhas are solved for neutron-${}^3\mathrm{He}$ and proton-${}^3\mathrm{H}$ scattering in the energy regime above the four-nucleon breakup threshold. Cross sections and spin observables for elastic, transfer, charge-exchange, and breakup reactions are calculated using realistic nucleon-nucleon interaction models, including the one with effective many-nucleon forces due to explicit $Δ$-isobar excitation. The experimental data are described reasonably well with only few exceptions such as vector analyzing powers.

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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