论文标题
光Sgoldstino现象学：Muon $（G-2）$偏差和koto异常的解释
The Light Sgoldstino Phenomenology: Explanations for the Muon $(g-2)$ Deviation and KOTO Anomaly
论文作者
论文摘要
在这项工作中，我们研究了Muon $（G-2）$的长期实验性异常，并且在J-Parc koto koto koto实验中，$ k_l \ to $ k_l \至π^0+bbarν$最近的异常过量。超对称性破裂后，Quarks和Sgoldstino（$ s $）之间的相互作用使衰减$ k \ toπ+s $通过环图size size size s size size size size size size size size size size size s s size size op tailgrampss op n of tos nesears的测量值$ k \ toπ+\ \ \ \ \ \ \ \ m athrm {invesible} $。此外，光子和sgoldstino之间的耦合有助于$ΔA_μ$以及Bino-Slepton的贡献。通过满足所有已知的实验约束，例如Na62，e949，e137，Orsay，KTEV和Charm实验，可以同时解释这两个异常。 CP-even Sgoldstino的质量接近中性亲质量，这不违反Grossman-Nir结合。可以在未来的NA62，Dune实验以及LHC中进一步测试参数空间。
In this work, we study the long-standing experimental anomaly in muon $(g-2)$ and also recent anomalous excess in $K_L\to π^0+ν\barν$ at the J-PARC KOTO experiment with sgoldstino. After supersymmetry breaking, the interactions between quarks and sgoldstino ($s$) make the decays $K\to π+s$ sizable through loop diagrams, which affects the measurements of decays $K\to π+\mathrm{invisible}$. Furthermore, the couplings between photons and sgoldstino contribute to $Δa_μ$ as well as the bino-slepton contribution. With satisfying all known experimental constraints such as from NA62, E949, E137, Orsay, KTEV and CHARM experiments, these two anomalies can be explained simultaneously. The mass of CP-even sgoldstino is close to the neutral pion mass which does not violate the Grossman-Nir bound. The parameter space can be further tested in future NA62, DUNE experiments, as well as experiments in the LHC.
