论文标题
未来$ e^+e^ - $ colliders的光线散射
Light-by-Light Scattering at Future $e^+e^-$ Colliders
论文作者
论文摘要
我们研究了对新物理和新物理学的clic和FCC-EE测量值的敏感性，包括标准模型中的海森伯格 - 欧拉格拉班兰吉尼亚人，从其他带电粒子或磁性单极管的循环中可能贡献了可能的贡献，即出生的QED，QED的出生 - QED和有效的dimemension-8运算型领域都可以涉及到型号的领域。 We find that FCC-ee measurements at 365 GeV and CLIC measurements at 350 GeV would be sensitive to new physics scales of half a TeV in the dimension-8 operator coefficients, and that CLIC measurements at 1.4 TeV or 3 TeV would be sensitive to new physics scales {$\sim 2$ TeV or 5 TeV} at 95\% CL, corresponding to probing loops of new particles with masses最多$ \ sim 3.7 $ tev {用于大型费用和/或多种物种}。在出生的攻击理论中，对于高能量clic选项，$ 95 \％$ cl的灵敏度将从$ \ sim 300 $ gev到1.3或2.8 TEV。除了出生的理论背景外，对光线散射的测量不会排除FCC-HH的单极产生。
We study the sensitivity of possible CLIC and FCC-ee measurements of light-by-light scattering to old and new physics, including the Heisenberg-Euler Lagrangian in the Standard Model with possible contributions from loops of additional charged particles or magnetic monopoles, the Born-Infeld extension of QED, and effective dimension-8 operators involving four electromagnetic field strengths as could appear in the Standard Model Effective Field Theory. We find that FCC-ee measurements at 365 GeV and CLIC measurements at 350 GeV would be sensitive to new physics scales of half a TeV in the dimension-8 operator coefficients, and that CLIC measurements at 1.4 TeV or 3 TeV would be sensitive to new physics scales {$\sim 2$ TeV or 5 TeV} at 95\% CL, corresponding to probing loops of new particles with masses up to $\sim 3.7$ TeV {for large charges and/or multiple species}. Within Born-Infeld theory, the $95\%$ CL sensitivities would range from $\sim 300$ GeV to 1.3 or 2.8 TeV for the high-energy CLIC options. Measurements of light-by-light scattering would not exclude monopole production at FCC-hh, except in the context of Born-Infeld theory.
