发表机构
Uppsala University; National Centre for Nuclear Research; University of Cyprus; The Cyprus Institute; Institute of High Energy Physics; Lund University; École Polytechnique Fédérale de Lausanne; University of Graz（乌普萨拉大学; 国家核研究中心; 塞浦路斯大学; 塞浦路斯研究所; 高能物理研究所; 隆德大学; 洛桑联邦理工学院; 格拉茨大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文综述重子电弱跃迁，聚焦超子和粲重子半轻子衰变，强调形状因子确定、$|V_{us}|$精确提取及非标准相互作用搜索，并指出$\u039e_c \u2192 \u039e$半轻子之谜等挑战。
AI 中文摘要
我们提出一份以唯象学为导向的综述，探讨重子电弱跃迁中的机遇和突出挑战，重点关注已有格点QCD结果的超子和粲重子过程，包括半轻子衰变以及选定的辐射、双轻子和中微子诱导通道。我们认为奇异和粲重子的半轻子衰变是唯象学、实验和格点QCD之间协同作用的一个特别有前景的领域。特别强调了矢量与轴矢形状因子的确定、从包含辐射修正的超子半轻子衰变中精确且模型无关地提取$|V_{us}|$，以及通过轻子味和CP破坏观测量寻找非标准相互作用。我们研究了基态跃迁中形状因子的动量依赖性，强调了由格点QCD预言与实验测量之间的张力而浮现的$\u039e_c \u2192 \u039e$半轻子之谜，讨论了包含性衰变率，并概述了将这些研究扩展到涉及激发重子态跃迁的策略。为完整起见，我们还回顾了涉及美重子衰变的结果。
英文摘要
We present a phenomenology-driven overview of opportunities and outstanding challenges in baryon electroweak transitions, focusing on hyperon and charmed-baryon processes for which lattice-QCD results are available, including semileptonic decays and selected radiative, dileptonic, and neutrino-induced channels. We identify semileptonic decays of strange and charmed baryons as a particularly promising domain for synergy between phenomenology, experiment, and lattice QCD. Particular emphasis is placed on the determination of vector and axial form factors, the precision and model-independent extraction of $|V_{us}|$ from hyperon semileptonic decays including radiative corrections, and on searches for non-standard interactions through lepton-flavor- and CP-violating observables. We examine the momentum dependence of form factors in ground-state transitions, highlight the emerging $Ξ_c \to Ξ$ semileptonic puzzle stemming from tensions between lattice-QCD predictions and experimental measurements, discuss inclusive decay rates, and outline strategies for extending these studies to transitions involving excited baryon states. For completeness, we review also results involving beauty-baryon decays.
Comments48 pages,14 figures
