论文标题
光线散射作为轴的新探针
Light by Light Scattering as a New Probe for Axions
论文作者
论文摘要
我们研究了虚拟轴对高功率激光脉冲相互作用期间腔内光子极化的影响。研究了一种新的检测方案，用于测量在光（LBL）散射过程中轴突诱导的椭圆性信号。我们表明，探针激光束和高强度靶束之间的光子之间的动量交换可能会导致轴心物理质量的共振。因此，真空双折射的谐振增强产生了较大的椭圆信号。可以应用此信号增强，以区分轴突对LBL散射的贡献以及由于电子峰值对而引起的标准模型贡献。研究了该方案的灵敏度，以实验可行的探针光源和超高强度激光背景。结果表明，该技术有可能在质量范围内探测QCD轴$ 10^{ - 2} \ textrm {ev} \ sillssim m_ {a} \ sillsim 1 \ textrm {evtrm {ev} $。在该区域，轴突诱导的信号超过了标准模型背景。
We study the impact of virtual axions on the polarization of photons inside a cavity during the interaction of high-power laser pulses. A novel detection scheme for measuring the axion-induced ellipticity signal during the Light-by-Light (LBL) scattering process is investigated. We show that a momentum exchange between photons in a probe laser beam and a high-intensity target beam may lead to a resonance at the physical mass of the axion. Consequently, the resonant enhancement of vacuum birefringence gives rise to a large ellipticity signal. This signal enhancement can be applied in order to discriminate between the axion contribution to LBL scattering and the standard model contribution due to electron-positron pairs. The sensitivity of the scheme is studied for experimentally feasible probe light sources and ultrahigh intensity laser backgrounds. It is shown that this technique has the potential to probe the QCD axion in the mass range $10^{-2} \textrm{eV} \lesssim m_{a} \lesssim 1 \textrm{eV}$. In this region the axion induced signal surpasses the standard model background.
