在CCM上检验介子门户暗 sector 对MiniBooNE反常的解释
高能物理 - 唯象学
2024-11-27 v6 高能物理 - 实验
摘要
近期提出了一种针对MiniBooNE超出事件的解释，其援引带电π介子与K介子到MeV质量尺度新态的稀有三体衰变作为暗 sector 解释。此类解释揭示了一个事实：在靶模式运行中带电π介子被聚焦，而在未观测到超出的束流_dump模式运行中其衰变产物被各向同性地抑制。这暗示了一种与介子 sector 相关的新物理解决方案。我们研究了一组扩展的现象学模型，其可将MiniBooNE超出事件解释为暗 sector 解决方案，利用可能在带电介子三体衰变与中性介子双体反常衰变中产生的长寿命粒子。在长寿命粒子相互作用的广泛集合中，我们表明这些情形可与来自LSND、KARMEN与MicroBooNE的约束相容，并评估了Coherent CAPTAIN Mills实验（CCM）正在进行与未来的数据在此参数空间内潜在发现的灵敏度。参见附录以获取更新的未来MicroBooNE灵敏度预测。
引用
@article{arxiv.2309.02599,
title = {Testing Meson Portal Dark Sector Solutions to the MiniBooNE Anomaly at CCM},
author = {A. A. Aguilar-Arevalo and S. Biedron and J. Boissevain and M. Borrego and L. Bugel and M. Chavez-Estrada and J. M. Conrad and R. L. Cooper and A. Diaz and J. R. Distel and J. C. D'Olivo and E. Dunton and B. Dutta and D. Fields and J. R. Gochanour and M. Gold and E. Guardincerri and E. C. Huang and N. Kamp and D. Kim and K. Knickerbocker and W. C. Louis and J. T. M. Lyles and R. Mahapatra and S. Maludze and J. Mirabal and D. Newmark and P. deNiverville and V. Pandey and D. Poulson and H. Ray and E. Renner and T. J. Schaub and A. Schneider and M. H. Shaevitz and D. Smith and W. Sondheim and A. M. Szelc and C. Taylor and A. Thompson and W. H. Thompson and M. Tripathi and R. T. Thornton and R. Van Berg and R. G. Van de Water},
journal= {arXiv preprint arXiv:2309.02599},
year = {2024}
}
备注
Addendum (in preparation for PRD) appended with forecast for MicroBooNE sensitivity to the MiniBooNE excess. Added reference to open source code for simulation of the horn-focused charged mesons