论文标题
光子 - 光子融合和tau g-2测量
Photon-photon fusion and tau g-2 measurement in ATLAS
论文作者
论文摘要
LHC处的相对论重离子束伴随着大量的等效光子通量。讨论了ATLAS实验进行的新的DILEPTON生产（电子，MUON和TAU对）的新测量。我们介绍了Tau Lepton异常磁偶极矩的光子诱导的Tau对产生和约束。此外，还提出了光子诱导的电子和兆子对产生的测量，这对核光子通量及其对冲击参数和光子能量的依赖性提供了强大的限制。正向中子可用于为事件中采样的冲击参数范围提供实验手柄。
Relativistic heavy-ion beams at the LHC are accompanied by a large flux of equivalent photons. New measurements of exclusive dilepton production (electron, muon, and tau pairs) performed by the ATLAS experiment are discussed. We present the photon-induced production of tau pairs and constraints on the tau lepton's anomalous magnetic dipole moment. In addition, measurements of photon-induced electron and muon pair production are presented, which provide strong constraints on the nuclear photon flux and its dependence on the impact parameter and photon energy. Forward neutrons are utilised to provide an experimental handle on the impact parameter range sampled in the events.
