论文标题
有效田间理论中介体的长期重型中性瘦素
Long-lived heavy neutral leptons from mesons in effective field theory
论文作者
论文摘要
在用重中性瘦素（HNLS）扩展的标准模型的低能量有效场理论的框架中，我们计算了由尺寸六算子触发的介子衰变的HNL的生产率。我们认为涉及一对HNL或单个HNL的Lepton-number Continving和Lepton-number-number-violation侵入四flimion操作员。假设HNL是长寿的，我们进行了模拟，并研究了高发光性LHC处提出的远处检测器的覆盖率（i）（i）（i）活跃的中微子混合，以及（ii）（ii）与有效操作员相关的Wilson系数，用于低于$ b $ - $ - $ - $ - 米森的HNL质量。我们将后者进一步转换为相关的新物理量表。我们的结果表明，这些实验可以探测出超过数百个TEV的尺度和高达$ 10^{ - 15} $的活跃混合平方。
In the framework of the low-energy effective field theory of the Standard Model extended with heavy neutral leptons (HNLs), we calculate the production rates of HNLs from meson decays triggered by dimension-six operators. We consider both lepton-number-conserving and lepton-number-violating four-fermion operators involving either a pair of HNLs or a single HNL. Assuming that HNLs are long-lived, we perform simulations and investigate the reach of the proposed far detectors at the high-luminosity LHC to (i) active-heavy neutrino mixing and (ii) the Wilson coefficients associated with the effective operators, for HNL masses below the mass of the $B$-meson. We further convert the latter to the associated new-physics scales. Our results show that scales in excess of hundreds of TeV and the active-heavy mixing squared as small as $10^{-15}$ can be probed by these experiments.
