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arXiv 2012.15759hep-phhep-ex
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衰变$Σ^0\toΛe^+e^-$的辐射修正

Radiative corrections for the decay $Σ^0\toΛe^+e^-$

Tomáš Husek

摘要:

电磁形状因子用于探索核子及其奇异伙伴的内在结构。对于衰变$Σ^0\toΛe^+e^-$,由于相空间有限,由Σ-λ跃迁形状因子引起的效应与QED辐射修正竞争。这些修正在本工作中得到了解决,超出了软光子近似,即,在Dalitz图的整个范围内,并且对辐射光子的能量没有限制。

英文摘要:

Electromagnetic form factors serve to explore the intrinsic structure of nucleons and their strangeness partners. For the decay $Σ^0\toΛe^+e^-$, due to limited phase space, the effects caused by the Sigma-to-Lambda transition form factors compete with the QED radiative corrections. These corrections are addressed in the present work, evaluated beyond the soft-photon approximation, i.e., over the whole range of the Dalitz plot and with no restrictions on the energy of the radiative photon.

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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