标题： 探测$WWγ$顶点在$e^\pm p\toν\gammaX$中的情况 显示英文标题

标题： Probing the $WWγ$ Vertex in $e^\pm p\toν\gammaX$

摘要： 我们研究在HERA和LEP/LHC上测试$WW\gamma$顶点在$e^- p\to\nu\gamma X$和$e^+ p\to\nu\gamma X$中的前景。 标准模型与异常贡献之间的破坏性干涉效应严重限制了这两种过程对非标准$WW\gamma$耦合的敏感度。 考虑到实验截断和不确定性以及非标准耦合的形状因子行为，得到了HERA和LEP/LHC上异常$WW\gamma$耦合$\kappa$和$\lambda$的敏感度限制。 这些限制被发现比在未来几年内其他对撞机过程中可以预期的限制要弱得多。 在HERA，它们与从$S$矩阵单位性得到的限制相当。 显示英文摘要

摘要： We study the prospects of testing the $WW\gamma$ vertex in $e^- p\to\nu\gamma X$ and $e^+ p\to\nu\gamma X$ at HERA and LEP/LHC. Destructive interference effects between the Standard Model and the anomalous contributions to the amplitude severely limit the sensitivity of both processes to non-standard $WW\gamma$ couplings. Sensitivity limits for the anomalous $WW\gamma$ couplings $\kappa$ and $\lambda$ at HERA and LEP/LHC are derived, taking into account experimental cuts and uncertainties, and the form factor behaviour of nonstandard couplings. These limits are found to be significantly weaker than those which can be expected from other collider processes within the next few years. At HERA, they are comparable to bounds obtained from $S$-matrix unitarity.