高能物理实验中地球自转和引力的表现
Manifestations of the rotation and gravity of the Earth in high-energy physics experiments
摘要:
地球的惯性(由于自转)和引力场影响基本粒子的运动及其自旋动力学。这种影响是不可忽略的,在高能物理实验中应加以考虑。地球的影响表现在粒子运动的扰动、自旋的额外进动以及麦克斯韦电动力学的本构张量的变化。较大的修正是振荡的,它们的贡献平均为零。由于惯性场的不均匀性引起的其他修正不是振荡的,但它们非常小,可能只对储存环电偶极矩实验很重要。地球的引力产生了类似牛顿的力,即聚焦系统提供的反作用力,以及作用在自旋上的附加扭矩。然而,没有可观察到的迹象表明地球引力引起的电磁效应。
英文摘要:
The inertial (due to rotation) and gravitational fields of the Earth affect the motion of an elementary particle and its spin dynamics. This influence is not negligible and should be taken into account in high-energy physics experiments. Earth's influence is manifest in perturbations in the particle motion, in an additional precession of the spin, and in a change of the constitutive tensor of the Maxwell electrodynamics. Bigger corrections are oscillatory, and their contributions average to zero. Other corrections due to the inhomogeneity of the inertial field are not oscillatory but they are very small and may be important only for the storage ring electric dipole moment experiments. Earth's gravity causes the Newton-like force, the reaction force provided by a focusing system, and additional torques acting on the spin. However, there are no observable indications of the electromagnetic effects due to Earth's gravity.
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