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Exploring leptoquark effects in hyperon and kaon decays with missing energy

机译：探索Hyperon和Kaon Decays的Leptoquark效应与缺失能量

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We entertain the possibility that scalar leptoquarks (LQs) generate consequential effects on the strangeness-changing decays of hyperons and kaons involving missing energy carried away by a pair of invisible fermions. Although such processes have suppressed rates in the standard model (SM), they could get significant enhancement in the presence of the LQs. In order to respect the available data on the kaon modes K → π ν ν ˉ and increase the rates of the hyperon decays substantially at the same time, two different scalar LQs are needed. If the LQs have Yukawa couplings solely to SM fermions, we find that the hyperon rates cannot attain values within the reach of ongoing or near-future experiments because of the combined constraints from the measurements on kaon mixing and lepton-flavor-violating processes. However, if we include light right-handed neutrinos in the LQ interactions, their contributions can evade the leading restrictions and translate into hyperon rates which may be big enough to be probed by upcoming searches. Thus, these hyperon modes could provide a new avenue for seeking sterile neutrinos.
机译：我们娱乐标量leptoquarks（LQs）对涉及一对无形的费用遗传的陌生症和卡尔的陌生感和卡尔的陌生感衰减产生了相应的影响。尽管这些过程在标准模型（SM）中具有抑制率，但它们可以在LQ的存在下显着增强。为了尊重KAON模式的可用数据k→πννˉ并基本上同时增加超谐振衰减，需要两个不同的标量lqs。如果LQS仅对SM Fermions有Yukawa联轴器，我们发现高速率无法在持续或接近未来实验范围内获得价值，因为来自KAON混合和LEPTON风味违规过程的测量结果的组合限制。但是，如果我们在LQ互动中包含灯右手中微子，他们的贡献可以避免领先的限制并转化为超级速率，这可能是即将到来的搜索探究的大量速率。因此，这些超速模式可以为寻找无菌中微子提供的新大道。

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