GeV 能量下中性流(反)中微子弹性散射中的辐射修正 I:核子靶
Radiative corrections in neutral-current (anti)neutrino elastic scattering at $\text{GeV}$ energies I: Nucleon targets
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中文总结 AI 辅助
研究 GeV 能量下中性流(反)中微子弹性散射的辐射修正,通过有效场论框架将截面分解,明确味依赖性并改进 QCD 贡献,单核子水平修正与奇异夸克贡献相当,结果与实验数据高度吻合。
中文摘要 AI 辅助
我们在有效场论框架内引入 GeV 能量下中性流(反)中微子 - 核子弹性散射的辐射修正。将截面分解为软函数和硬函数,阐明了(反)中微子味在振幅和截面水平上的依赖性,并改进了量子色动力学对低能中性流过程的贡献。单核子水平的辐射修正幅度与奇异夸克的贡献相当。还将结果与 BNL E734 和 MiniBooNE 合作组的实验数据比较,发现与实验数据高度吻合。
英文摘要
We introduce radiative corrections in neutral-current (anti)neutrino-nucleon elastic scattering at $\text{GeV}$ energies within the effective field theory framework. We factorize cross sections into soft and hard functions, clarify the (anti)neutrino flavor dependence at both amplitude and cross-section levels, and improve the quantum chromodynamics (QCD) contributions to low-energy neutral-current processes. The radiative corrections at the single-nucleon level reach a magnitude comparable to the contributions from strange quarks. We also compare our results with the experimental data from BNL E734 and MiniBooNE collaborations, finding excellent agreements with the experimental data.