基础中子物理：美国进展与前景白皮书
核实验
2023-08-21 v1 高能物理 - 实验
摘要
基础中子物理结合精密测量与理论，探测短程粒子物理，其触及范围远超 LHC 所探测的最高能标。美国正开展重大工作，将以数量级更高的灵敏度探测 BSM CP 破坏，提供关于 Cabibbo 异常的新数据，更精密测量中子寿命与衰变，并探索强子宇称破坏。自上次长期规划以来，美国基础中子物理界取得了世界领先成果，包括 UCN 对中子寿命的最精密测量、UCNA 关于 beta 不对称性的最终结果，以及来自 FNPB（基础中子物理束线）的 NPDGamma 与 n-He 运行的强子宇称破坏新结果、对辐射中子衰变模式与 n-He 的精密测量。通过开发 BL3、Nab、LANL nEDM 和 nEDM@SNS 等新重大影响实验，确保了美国的领导地位与发现潜力。理论方面，过去几年取得了来自 QCD 项的中子 EDM 结果，beta 衰变内辐射修正不确定性减半（影响 CKM 幺正性），以及针对中重核核结构的 {\it ab initio} 计算进展，最终可改善核与核子 EDM 间的联系。为维持这一激动人心的计划，利用既往投资并开拓新思路、在美国新领域建立领导地位，基础中子物理界已确定若干优先事项与机遇，涵盖正在制定的上次长期规划（LRP）时间框架。本白皮书详述这些优先事项。
引用
@article{arxiv.2308.09059,
title = {Fundamental Neutron Physics: a White Paper on Progress and Prospects in the US},
author = {R. Alarcon and A. Aleksandrova and S. Baeßler and D. H. Beck and T. Bhattacharya and M. Blatnik and T. J. Bowles and J. D. Bowman and J. Brewington and L. J. Broussard and A. Bryant and J. F. Burdine and J. Caylor and Y. Chen and J. H. Choi and L. Christie and T. E. Chupp and V. Cianciolo and V. Cirigliano and S. M. Clayton and B. Collett and C. Crawford and W. Dekens and M. Demarteau and D. DeMille and G. Dodson and B. W. Filippone and N. Floyd and N. Fomin and J Fry and K. Fuyuto and S. Gardner and R. Godri and R. Golub and F. Gonzalez and G. L. Greene and V. Gudkov and R. Gupta and J. Hamblen and L. Hayen and J C. Hendrus and K. Hickerson and F. B. Hills and A. T. Holley and S. Hoogerheide and M. Hubert and P. R. Huffman and S. K. Imam and T. M. Ito and L. Jin and G. Jones and A. Komives and E. Korobkina and W. Korsch and K. K. H. Leung and C. -Y. Liu and K. -F. Liu and J. C. Long and D. Mathews and A. Mendelsohn and E. Mereghetti and P. Mohanmurthy and C. L. Morris and P. Mueller and H. P. Mumm and A. Nelsen and A. Nicholson and J. Nico and C. M. O'Shaughnessy and P. A. Palamure and S. Pastore and R. W. Pattie and N. S. Phan and J. A. Pioquinto and B. Plaster and D. Počanić and H. Rahangdale and R. Redwine and A. Reid and D. J. Salvat and A. Saunders and D. Schaper and C. -Y. Seng and M. Singh and A. Shindler and W. M. Snow and Z. Tang and A. Walker-Loud and D. K. -T. Wong and F. Wietfeldt and A. R. Young},
journal= {arXiv preprint arXiv:2308.09059},
year = {2023}
}
备注
arXiv admin note: text overlap with arXiv:2304.03451