标题： 未来直线对撞机中2HDM中性希格斯玻色子在完全强子衰变中的可观测性 显示英文标题

标题： Observability of 2HDM Neutral Higgs Bosons in fully hadronic decay at future linear collider

摘要： 该研究旨在研究赝标量希格斯玻色子$A$和中性重CP偶宇称希格斯玻色子$H$在不同类型基准点下的可观测性，在类型-I 2HDM 框架下。 该研究是在$e^{-}e^{+}$碰撞下进行的，中心质能为$\sqrt{s}$= 1000 GeV，这是未来轻子对撞机的一种可能情景。 在两种不同的通道中，研究了$A$和$H$在$e+ e-$碰撞中的联合产生，在完全强子最终态中。 The first one is $AH \to ZHH \to j\bar{j} b \bar{b}b\bar{b}$ while the other one is $AH \to b \bar{b}b\bar{b}$. The observability of neutral heavy Higgs and pseudoscalar Higgs signal is possible within the parameter space $ (\tan \beta, m_{A}) $ which satisfies all experimental and theoretical constraints. The CP odd and CP even Higgs bosons in all scenarios are observable when signal exceeds $ 5\sigma $, which is the final extracted value of signal significance. The signal significance is calculated at different integrated luminosities. It is concluded from current analysis that fully hadronic channel is promising for search and measurement of the neutral Higgs Bosons in 2HDM. 显示英文摘要

摘要： The study aims to investigate the observability of pseudoscalar Higgs boson $A$ and neutral heavy CP even Higgs boson $H$, at different benchmark points, in the framework of type-I 2HDM. The study is done for $e^{-}e^{+}$ collisions at $\sqrt{s}$ = 1000 GeV centre of mass energy (c.o.m.) a possible scenario in future lepton collider. The associated production of $A$ and $H$ in $e+ e-$ collisions are investigated in fully hadronic final state in two different channels. The first one is $AH \to ZHH \to j\bar{j} b \bar{b}b\bar{b}$ while the other one is $AH \to b \bar{b}b\bar{b}$. The observability of neutral heavy Higgs and pseudoscalar Higgs signal is possible within the parameter space $ (\tan \beta, m_{A}) $ which satisfies all experimental and theoretical constraints. The CP odd and CP even Higgs bosons in all scenarios are observable when signal exceeds $ 5\sigma $, which is the final extracted value of signal significance. The signal significance is calculated at different integrated luminosities. It is concluded from current analysis that fully hadronic channel is promising for search and measurement of the neutral Higgs Bosons in 2HDM.