论文标题

关于哈德子局部空间密度的定义

On the definition of local spatial densities in hadrons

论文作者

Epelbaum, E., Gegelia, J., Lange, N., Meißner, U. -G., Polyakov, M. V.

论文摘要

我们表明,辐射状态之间的本地操作员的矩阵元素产生了对相关空间密度的明确定义。作为一个明确的例子,我们考虑了其余无旋转粒子的电荷密度并移动框架,并阐明了其与电饰面的关系。我们的结果表明,需要修改对当地运营商的空间密度及其时刻的解释,例如均方根电荷半径。

We show that the matrix element of a local operator between hadronic states gives rise to an unambiguous definition of the associated spatial density. As an explicit example, we consider the charge density of a spinless particle in the rest and moving frames and clarify its relationship to the electric form factor. Our results suggest that the interpretation of the spatial densities of local operators and their moments such as the mean square charge radius needs to be revised.

扫码加入交流群

加入微信交流群

微信交流群二维码

扫码加入学术交流群,获取更多资源