| 在同位旋SU(2)不变耦合模型中研究 p pbar -> n nbar 核子反应的重整化无穷阶链图效应 |
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| 引用本文： | 文毫,陈学文,方祯云,史成业,张家伟.在同位旋SU(2)不变耦合模型中研究 p pbar -> n nbar 核子反应的重整化无穷阶链图效应[J].原子与分子物理学报,2013,30(5):763-773. |
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| 作者姓名： | 文毫 陈学文 方祯云 史成业 张家伟 |
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| 作者单位： | 重庆大学理论物理研究所; 英国南安普敦大学,重庆科技学院,重庆大学理论物理研究所,重庆大学理论物理研究所,重庆科技学院 |
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| 基金项目： | 国家自然科学基金(批准号: 11075224); 重庆科技学院科研基金(批准号: CK2011B34); 中国工程物理研究院科学基金(批准号:2008T0401;2008T0402) |
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| 摘 要： | 本文采用描述中性及荷电 pion 介子（pion0,pion+,pion-）与核子-反核子强相互作用的同位旋SU(2)不变耦合模型,计算出在pion0 及 pion+, pion- 重整化链图传播下 p pbar -> n nbar 核子反应微分截面的“精确”解析结果;并且将此结果与在 pion0 及 pion+, pion- 树图传播下的微分截面作了对比分析,得到相应的辐射修正重要信息。本文完成的工作对进一步深入研究三种荷电状态 pion 介子与核子-反核子强相互作用的同位旋SU(2)不变耦合模型以及深入理论探讨质子-反质子对撞实验,都将提供某些理论研究的参考价值。
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| 关 键 词： | 同位旋SU(2)不变耦合 质子对撞 重整化 链图传播子 微分截面 辐射修正 |
Effect of Renormalized Infinite-Order Chain Propagator Contributing to Nucleon Reaction of p pbar -> n nbar under Isospin-SU(2) Invariant Coupling Model |
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| Wen Hao,and.Effect of Renormalized Infinite-Order Chain Propagator Contributing to Nucleon Reaction of p pbar -> n nbar under Isospin-SU(2) Invariant Coupling Model[J].Journal of Atomic and Molecular Physics,2013,30(5):763-773. |
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| Authors: | Wen Hao and |
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| Institution: | Institute for Theoretical Physics, Chongqing University; University of Southampton.,Chongqing University of Science and Technology,Institute for Theoretical Physics, Chongqing University,Institute for Theoretical Physics, Chongqing University,Chongqing University of Science and Technology |
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| Abstract: | Adopting the isospin-SU(2) invariant coupling model to describe strong interaction between neutral/charged pions and nucleon-antinucleon, we "rigorously"calculate the analytical differential cross section of p pbar -> n nbar reaction (proton-antiproton -> neutron-antineutron) unprecedentedly with renormalized chain propagators of pion0 and pion+,pion- ; Relevant radiative correction is achieved from the comparison of unpolarized differential cross-sections between cases of chain propagator and tree propagator. The results obtained would be referential and contributing to further studies on isospin-SU(2) invariant coupling model for strong interaction between pions (at all three states of charge) and nucleon-antinucleon, and to other in-depth researches on theoretical or experimental investigation regarding nucleon-antinucleon collision. |
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| Keywords: | isospin-SU(2) invariant coupling model proton-antiproton collision renormalization chain propagator differential cross-section radiative correction |
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