OKA 实验中暗光子的搜索
高能物理 - 实验
2026-05-25 v1
摘要
我们对 衰变中的无质量暗光子进行搜索，采用 OKA 检测器接收来自 U70 质子同步抽运堆的 17.7 GeV/c 射频分离次级束。使用高统计量 衰变样本进行缺失质量搜索，以寻找最终状态中稳定的无质量不可见暗光子()。在无显著统计信号的情况下，我们基于该过程的真实矩阵元，在 90% 置信水平下获得该衰变分支比率上限 。目前，这是该假设性衰变通道的最佳上限。
引用
@article{arxiv.2605.23533,
title = {A search for the dark photon in the OKA experiment},
author = {The OKA Collaboration and A. S. Sadovsky and A. P. Filin and A. V. Artamonov and S. V. Donskov and A. M. Gorin and A. V. Inyakin and G. V. Khaustov and S. A. Kholodenko and V. N. Kolosov and A. K. Konoplyannikov and V. F. Kurshetsov and V. A. Lishin and M. V. Medynsky and A. G. Miagkov and V. F. Obraztsov and A. V. Okhotnikov and V. I. Romanovsky and V. I. Rykalin and V. D. Samoylenko and M. M. Shapkin and S. R. Slabospitsky and A. E. Sobol and I. S. Tiurin and V. A. Uvarov and O. P. Yushchenko and S. N. Filippov and E. N. Gushchin and A. A. Khudyakov and V. I. Kravtsov and Yu. G. Kudenko and A. V. Kulik and A. Yu. Polyarush and V. N. Bychkov and G. D. Kekelidze and V. M. Lysan and V. A. Polyakov and B. Zh. Zalikhanov},
journal= {arXiv preprint arXiv:2605.23533},
year = {2026}
}
备注
9 pages 5 figures