论文标题
分解隐藏的颗粒生产率
Factorizing Hidden Particle Production Rates
论文作者
论文摘要
提出了一种方法来通过将隐藏粒子生产速率分配到i）独立于模型的SM贡献以及II）可观察到的独立的隐藏扇区贡献来简化隐藏粒子生产率的计算。可以为每个可观察到的各种隐藏扇区模型计算一次标准模型（SM）贡献一次，而可以为每个模型计算一次隐藏的扇区贡献，并重复使用各种可观察到的可观测值。 SM贡献还促进了对隐藏粒子产生的独立限制提取模型。该方法与有效的现场理论（EFT）和简化的模型方法兼容。通过将带电的KAON腐烂速率分配到带电的Lepton和许多隐藏粒子中来说明它，并且发现单个外形粒子$ f _ {\ ell} $可以参数化一般隐藏扇区的影响。我们对模型$ f_e $的构造构成了模型无关的约束，该构造$ f_e $损失了正电子和隐藏粒子。
A method is proposed to streamline the computation of hidden particle production rates by factorizing them into i) a model-independent SM contribution, and ii) a observable-independent hidden sector contribution. The Standard Model (SM) contribution can be computed once for each observable and re-used for a wide array of hidden sector models, while the hidden sector contribution can be computed once for each model, and re-used for a wide array of observables. The SM contribution also facilitates extracting model independent constraints on hidden particle production. The method is compatible with effective field theory (EFT) and simplified model approaches. It is illustrated by factorizing the rate of charged kaon decays into a charged lepton and a number of hidden particles, and a single form factor $F_{\ell}$ is found to parametrize the impact of general hidden sectors. We derive model-independent constraints on the form factor $F_e$ that governs decays into positrons and hidden particles.
