论文标题
质子梁实验中的深色扇形 - 光子相互作用
Dark sector-photon interactions in proton-beam experiments
论文作者
论文摘要
我们考虑通过较高的尺寸有效算子（例如电气和磁偶极矩，Anapole矩和电荷半径算子）将电磁性中性暗状态逐渐融合到光子。我们研究了在几个代表性的质子梁实验中以dirac fermion $χ$为例，以这种黑暗状态探测存在的可能性。由于尚未报告正信号，因此我们在相应的电磁形态上获得了比几个GEV的高态电磁形式因子的上限（或投影敏感性）。我们证明，尽管质子梁实验的当前限制最多与高能电子乘员的限制相当，但由于其高强度，未来的实验（例如沙丘和船舶）将能够提高对电和磁性偶极矩相互作用的敏感性。
We consider electromagnetically neutral dark states that couple to the photon through higher dimensional effective operators, such as electric and magnetic dipole moment, anapole moment and charge radius operators. We investigate the possibility of probing the existence of such dark states, taking a Dirac fermion $χ$ as an example, at several representative proton-beam experiments. As no positive signal has been reported, we obtain upper limits (or projected sensitivities) on the corresponding electromagnetic form factors for dark states lighter than several GeV. We demonstrate that while the current limits from proton-beam experiments are at most comparable with those from high-energy electron colliders, future experiments, such as DUNE and SHiP, will be able to improve the sensitivities to electric and magnetic dipole moment interactions, owing to their high intensity.
