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arXiv 0710.3537nucl-th
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$pp\to ppπ^0$反应中的双π交换效应

Two-pion-exchange effects in the $pp\to ppπ^0$ reaction

F. Myhrer

摘要:

基于重子手征微扰理论研究了pp \to ppπ^0反应阈值附近的性质。结果表明,在温伯格计数方案中,双π交换图比手征级较低的单π交换图贡献大得多。我们还讨论了我们的结果与动量计数方案的关系。

英文摘要:

We study the pp \to ppπ^0 reaction near threshold based on heavy-baryon chiral perturbation theory. We show that the two-pion-exchange diagrams give much larger contribution than the one-pion-exchange diagram which is of lower chiral order in Weinberg's counting scheme. We also discuss the relation of our results to the momentum counting scheme.

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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