新物理学Higgs/Flavor时代的十年任务
Decadal Mission for the New Physics Higgs/Flavor Era
摘要：
除了预期的$h(125)$玻色子之外，大型强子对撞机还没有发现任何新物理学，而开箱即用的搜索或具有多TeV截止的有效场论的新想法比比皆是。但是，我们是否已经穷尽了涉及亚TeV粒子的四维算子，这些粒子是{ \it not}奇异的（非XLP）？我们主张存在一个额外的希格斯双重带，携带额外的温伯格耦合，其中{ \it涌现}质量混合层次结构{ \it和}对齐隐藏他们的影响非常好，到目前为止。${\cal O}(1)$ Higgs四次方能诱导一级电弱相变，并蕴含亚TeV的$H, A, H^\pm$能谱。由${\cal O}(1)$中的$ρ_{tt}$和$ρ_{tc}$导致的额外的温伯格耦合可以驱动电弱重子生成，而$|ρ_{ee}/ρ_{tt}| \propto λ_e/λ_t$，普通电子和顶部温伯格耦合的比率，可以驯服电子EDM。在大型强子对撞机上通过$cg \to tH/A \to tt\bar c$、$tt\bar t$和$cg \to bH^+ \to bt\bar b$过程（以及希格斯玻色子分裂所允许的过程）找到这些额外的希格斯玻色子，并推动味道边界以打破味道密码，将迎来一个新的希格斯/味道时代。一个新的规模在10- 20 TeV，可能与朗道极的标量部门，可能会出现。
英文摘要：
The LHC has not discovered any New Physics beyond the anticipated $h(125)$ boson, and new ideas abound for out-of-the-box searches, or Effective Field Theories with multi-TeV cutoff. But, have we exhausted dimension-4 operators involving sub-TeV particles that are {\it not} exotic (non-XLP)? We advocate the existence of an extra Higgs doublet that carry extra Weinberg couplings, where {\it emergent} mass-mixing hierarchies {\it and} alignment have hidden their effects very well so far. ${\cal O}(1)$ Higgs quartics can induce first order electroweak phase transition and imply sub-TeV $H, A, H^\pm$ spectrum. The extra Weinberg couplings, led by $ρ_{tt}$ and $ρ_{tc}$ at ${\cal O}(1)$, can drive electroweak baryogenesis, while $|ρ_{ee}/ρ_{tt}| \propto λ_e/λ_t$, the ratio of usual electron and top Weinberg couplings, can tame electron EDM. Finding these extra Higgs bosons via $cg \to tH/A \to tt\bar c$, $tt\bar t$ and $cg \to bH^+ \to bt\bar b$ processes (and those allowed by Higgs boson splittings) at the LHC, and pushing the flavor frontier to break the flavor code, would usher in a new Higgs/flavor era. A new scale at 10--20 TeV, possibly related to the Landau pole of the scalar sector, may emerge.
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