从高能散射数据得到的中子尺寸
Neutron size from high energy scattering data
摘要：
Alvarado、Aranda和Bonilla提出了一个亚GeV U（1）R规范玻色子模型来解释质子电荷半径的差异。他们的模型假设核子中上夸克和下夸克的U（1）R电荷分配符号相反。我指出，这可能会导致中子和质子质量半径之间的差异，与现有的p-p和n-p散射数据相矛盾。使用现有的中子和质子散射数据，我表明，中子和质子的质量半径是相等的约2%。这对试图通过修改夸克耦合来解释这种差异的模型构成了挑战。
英文摘要：
Alvarado, Aranda, and Bonilla propose a sub-GeV U(1)R gauge boson model to explain the proton charge radius discrepancy. Their model assumes opposite sign U(1)R charge assignments for up and down quarks in the nucleon. I point out that might cause a difference between neutron and proton mass radii that contradicts existing p-p and n-p scattering data. Using existing neutron and proton scattering data I show that the neutron and proton mass radii are equal within about 2%. This constitutes a challenge to models that attempt to explain the discrepancy by modifying the quark couplings.
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。
