发表机构
D.V. Skobeltsyn Institute of Nuclear Physics, M.V. Lomonosov Moscow State University（德·维·斯科别尔岑核物理研究所，莫斯科国立大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
提出一种通过测量伴随波过程的群速度和相速度来表征深非弹性散射中介质特性的新方法，并从HERA数据中提取了相互作用载体的群速度模值。
AI 中文摘要
我们提出了一种测量深非弹性粒子散射过程中形成的费米子-玻色子介质若干特性的新方法。该方法涉及测量伴随波过程的群速度和相速度。波过程的相速度和群速度通过瑞利微分条件相关联。介质的折射率由相速度决定，而群速度表征介质的色散特性。在所考虑的深非弹性 $ep$ 散射情形下，单个事件中的波过程被理解为电子与质子之间交换一个具有中性流量子数的有效非微扰相互作用中介体（${\cal B}$）。在第一篇报告中，我们展示了关于相互作用载体 ${\cal B}$ 群速度的新数据。我们利用基于修正的海森堡不确定性关系推导的公式，并应用间接测量方法，从 HERA 对撞机数据中提取了群速度模值 $U_{_{\cal B}}^*$。
英文摘要
We propose a new method for measuring several characteristics of a fermion-boson medium formed during deep inelastic particle scattering. This method involves measuring the group and phase velocities of the accompanying wave process. The phase and group velocities of a wave process are related by the Rayleigh differential condition. The refractive index of a medium is determined by the phase velocity, while the group velocity characterises the medium's dispersion properties. In the case of deep inelastic $ep$ scattering under consideration, the wave process in an individual event is understood to be the exchange between an electron and a proton of an effective, non-perturbative mediator of interaction (${\cal B}$) with the quantum numbers of a neutral current. In the first report, we present new data on the group velocity of interaction carriers ${\cal B}$. We extracted the group velocity modulus values, $U_{_{\cal B}}^*$, from the HERA collider data using a formula derived from modified Heisenberg uncertainty relations and applying the indirect measurement method. The HERA data demonstrate that in the selected kinematic domain the speed of the mediator ${\cal B}$ exceeds the speed of light $c$ in free space, $U_{_{\cal B}}^* > c$. To compare with the obtained data on group velocity, we analyse a simplest model of dispersion relation occurring due to the relativistic relationship between the energy, mass and momentum of a particle, supplemented by de Broglie relations.
Comments10 pages, 5 figures, 1 table. Updated the Abstract, Conclusions, the style of references. RevTex4-2
