We study the complementarity between the Large Hadron Collider (LHC) and future lepton colliders in probing electroweak baryogenesis induced by an additional bottom Yukawa coupling ${\rho }_{bb}$. The context is general two Higgs doublet model (g2HDM) where such additional bottom Yukawa coupling can account for the observed baryon asymmetry of the Universe if $\text{Im}({\rho }_{bb})\gtrsim 0.058$. We find that LHC would probe the nominal $\text{Im}({\rho }_{bb})$ required for baryogenesis to some extent via $bg\to bA\to bZh$ process if $300\text{GeV}\lesssim m_A\lesssim 450$ GeV, where A is the CP-odd scalar in g2HDM. We show that future electron positron collider such as International Linear Collider with 500 GeV and 1 TeV collision energies may offer unique probe for the nominal $\text{Im}({\rho }_{bb})$ via $e^{+}{e}^{-}\to Z^{⁎}\to AH$ process followed by $A,H\to b\overline{b}$ decays in four b-jets signature. For complementarity we also study the resonant diHiggs productions, which may give an insight into strong first-order electroweak phase transition, via $e^{+}{e}^{-}\to Z^{⁎}\to AH\to Ahh$ process in six b-jets signature. We find that 1 TeV collision energy with $\mathcal{O}(1){\text{ab}}^{-1}$ integrated luminosity could offer an ideal environment for the discovery.

我们研究了大型强子对撞机 (LHC) 和未来的轻子对撞机在探测由额外的底部汤川耦合引起的电弱重子发生方面的互补性 ${\rho }_{乙乙}$. 上下文是一般的两个希格斯双峰模型（g2HDM），其中这种额外的底部汤川耦合可以解释观察到的宇宙重子不对称性，如果$\text{我是}({\rho }_{乙乙})\gtrsim 0.058$. 我们发现 LHC 会探测名义上的$\text{我是}({\rho }_{乙乙})$ 在一定程度上需要通过 $乙G\to 乙\mathrm{一种}\to 乙ZH$ 处理如果 $300\text{电子伏特}\lesssim {米}_{\mathrm{一种}}\lesssim 450$GeV，其中A是 g2HDM 中的 CP 奇数标量。我们展示了未来的正电子对撞机，例如具有 500 GeV 和 1 TeV 碰撞能量的国际线性对撞机，可能会为标称值提供独特的探测。$\text{我是}({\rho }_{乙乙})$ 通过 ${\mathrm{电子}}^{+}{\mathrm{电子}}^{-}\to Z^{⁎}\to \mathrm{一种}H$ 过程随后 $\mathrm{一种},H\to 乙\overline{乙}$在四个b喷气机签名中衰减。为了互补，我们还研究了共振 diHiggs 产生，这可能会深入了解强一阶电弱相变，通过${\mathrm{电子}}^{+}{\mathrm{电子}}^{-}\to Z^{⁎}\to \mathrm{一种}H\to \mathrm{一种}HH$在六个b喷气机签名的过程中。我们发现 1 TeV 的碰撞能量与$\mathcal{哦}(1){\text{AB}}^{-1}$ 综合光度可以为这一发现提供理想的环境。