cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.144335.v1/t10
title: "Cross-section limits for vvbb, ggF, tanbeta=1" of "Search for a CP-odd Higgs boson decaying into a heavy CP-even Higgs boson and a $Z$ boson in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states using 140 fb$^{-1}$ of data collected with the ATLAS detector"

description: Expected and observed upper limits at 95% CL on sigma(gg-&gt;A)*B(A-&gt;ZH)*B(H-&gt;bb) in the (mA,mH) plane. The limits are shown for tanbeta=1. The tanbeta value is relevant only for the choice of the A boson width. <br><br>return to overview
description: A search for a heavy CP-odd Higgs boson, $A$, decaying into a $Z$ boson and a heavy CP-even Higgs boson, $H$, is presented using the full LHC Run 2 dataset of $pp$ collisions at $\sqrt{s}=13$ TeV collected with the ATLAS detector, corresponding to an integrated luminosity of $140$ fb$^{-1}$. The search for $A\to ZH$ is performed in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states and extends the reach of previous searches into different final states in the region with $m_H&gt;350$ GeV and $m_A&gt;800$ GeV. No significant deviation from the Standard Model expectation is found. Upper limits on the production cross-section times the decay branching ratios are set. Limits with a reduced model dependence are also presented as functions of the reconstructed $m(t\bar{t})$ and $m(b\bar{b})$ distributions in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ channel, respectively. In addition, an interpretation of the results in the context of two-Higgs-doublet models is given.
DOI: 10.17182/hepdata.144335.v1/t11
title: "Cross-section limits for vvbb, bbA, tanbeta=10" of "Search for a CP-odd Higgs boson decaying into a heavy CP-even Higgs boson and a $Z$ boson in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states using 140 fb$^{-1}$ of data collected with the ATLAS detector"

description: Expected and observed upper limits at 95% CL on sigma(bbA)*B(A-&gt;ZH)*B(H-&gt;bb) in the (mA,mH) plane. The limits are shown for tanbeta=10. The tanbeta value is relevant only for the choice of the A boson width. <br><br>return to overview
description: A search for a heavy CP-odd Higgs boson, $A$, decaying into a $Z$ boson and a heavy CP-even Higgs boson, $H$, is presented using the full LHC Run 2 dataset of $pp$ collisions at $\sqrt{s}=13$ TeV collected with the ATLAS detector, corresponding to an integrated luminosity of $140$ fb$^{-1}$. The search for $A\to ZH$ is performed in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states and extends the reach of previous searches into different final states in the region with $m_H&gt;350$ GeV and $m_A&gt;800$ GeV. No significant deviation from the Standard Model expectation is found. Upper limits on the production cross-section times the decay branching ratios are set. Limits with a reduced model dependence are also presented as functions of the reconstructed $m(t\bar{t})$ and $m(b\bar{b})$ distributions in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ channel, respectively. In addition, an interpretation of the results in the context of two-Higgs-doublet models is given.
DOI: 10.17182/hepdata.144335.v1/t12
title: "Cross-section limits for lltt, ggF, tanbeta=0.5" of "Search for a CP-odd Higgs boson decaying into a heavy CP-even Higgs boson and a $Z$ boson in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states using 140 fb$^{-1}$ of data collected with the ATLAS detector"

description: Expected and observed upper limits at 95% CL on sigma(gg-&gt;A)*B(A-&gt;ZH)*B(H-&gt;tt) in he (mA,mH) plane. The limits are shown for tanbeta=0.5. The tanbeta value is relevant only for the choice of the A boson width. <br>return to overview
description: A search for a heavy CP-odd Higgs boson, $A$, decaying into a $Z$ boson and a heavy CP-even Higgs boson, $H$, is presented using the full LHC Run 2 dataset of $pp$ collisions at $\sqrt{s}=13$ TeV collected with the ATLAS detector, corresponding to an integrated luminosity of $140$ fb$^{-1}$. The search for $A\to ZH$ is performed in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states and extends the reach of previous searches into different final states in the region with $m_H&gt;350$ GeV and $m_A&gt;800$ GeV. No significant deviation from the Standard Model expectation is found. Upper limits on the production cross-section times the decay branching ratios are set. Limits with a reduced model dependence are also presented as functions of the reconstructed $m(t\bar{t})$ and $m(b\bar{b})$ distributions in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ channel, respectively. In addition, an interpretation of the results in the context of two-Higgs-doublet models is given.
DOI: 10.17182/hepdata.144335.v1/t13
title: "Cross-section limits for lltt, ggF, tanbeta=5" of "Search for a CP-odd Higgs boson decaying into a heavy CP-even Higgs boson and a $Z$ boson in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states using 140 fb$^{-1}$ of data collected with the ATLAS detector"

description: Expected and observed upper limits at 95% CL on sigma(gg-&gt;A)*B(A-&gt;ZH)*B(H-&gt;tt) in the (mA,mH) plane. The limits are shown for tanbeta=5. The tanbeta value is relevant only for the choice of the A boson width. <br>return to overview
description: A search for a heavy CP-odd Higgs boson, $A$, decaying into a $Z$ boson and a heavy CP-even Higgs boson, $H$, is presented using the full LHC Run 2 dataset of $pp$ collisions at $\sqrt{s}=13$ TeV collected with the ATLAS detector, corresponding to an integrated luminosity of $140$ fb$^{-1}$. The search for $A\to ZH$ is performed in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states and extends the reach of previous searches into different final states in the region with $m_H&gt;350$ GeV and $m_A&gt;800$ GeV. No significant deviation from the Standard Model expectation is found. Upper limits on the production cross-section times the decay branching ratios are set. Limits with a reduced model dependence are also presented as functions of the reconstructed $m(t\bar{t})$ and $m(b\bar{b})$ distributions in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ channel, respectively. In addition, an interpretation of the results in the context of two-Higgs-doublet models is given.
DOI: 10.17182/hepdata.144335.v1/t14
title: "Cross-section limits for lltt, bbA, tanbeta=1" of "Search for a CP-odd Higgs boson decaying into a heavy CP-even Higgs boson and a $Z$ boson in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states using 140 fb$^{-1}$ of data collected with the ATLAS detector"

description: Expected and observed upper limits at 95% CL on sigma(bbA)*B(A-&gt;ZH)*B(H-&gt;tt) in the (mA,mH) plane. The limits are shown for tanbeta=1. The tanbeta value is relevant only for the choice of the A boson width. <br><br>return to overview
description: A search for a heavy CP-odd Higgs boson, $A$, decaying into a $Z$ boson and a heavy CP-even Higgs boson, $H$, is presented using the full LHC Run 2 dataset of $pp$ collisions at $\sqrt{s}=13$ TeV collected with the ATLAS detector, corresponding to an integrated luminosity of $140$ fb$^{-1}$. The search for $A\to ZH$ is performed in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states and extends the reach of previous searches into different final states in the region with $m_H&gt;350$ GeV and $m_A&gt;800$ GeV. No significant deviation from the Standard Model expectation is found. Upper limits on the production cross-section times the decay branching ratios are set. Limits with a reduced model dependence are also presented as functions of the reconstructed $m(t\bar{t})$ and $m(b\bar{b})$ distributions in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ channel, respectively. In addition, an interpretation of the results in the context of two-Higgs-doublet models is given.
DOI: 10.17182/hepdata.144335.v1/t15
title: "Cross-section limits for lltt, bbA, tanbeta=5" of "Search for a CP-odd Higgs boson decaying into a heavy CP-even Higgs boson and a $Z$ boson in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states using 140 fb$^{-1}$ of data collected with the ATLAS detector"

description: Expected and observed upper limits at 95% CL on sigma(bbA)*B(A-&gt;ZH)*B(H-&gt;tt)$ in the (mA,mH) plane. The limits are shown for tanbeta=5. The tanbeta value is relevant only for the choice of the A boson width. <br><br>return to overview
description: A search for a heavy CP-odd Higgs boson, $A$, decaying into a $Z$ boson and a heavy CP-even Higgs boson, $H$, is presented using the full LHC Run 2 dataset of $pp$ collisions at $\sqrt{s}=13$ TeV collected with the ATLAS detector, corresponding to an integrated luminosity of $140$ fb$^{-1}$. The search for $A\to ZH$ is performed in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states and extends the reach of previous searches into different final states in the region with $m_H&gt;350$ GeV and $m_A&gt;800$ GeV. No significant deviation from the Standard Model expectation is found. Upper limits on the production cross-section times the decay branching ratios are set. Limits with a reduced model dependence are also presented as functions of the reconstructed $m(t\bar{t})$ and $m(b\bar{b})$ distributions in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ channel, respectively. In addition, an interpretation of the results in the context of two-Higgs-doublet models is given.
DOI: 10.17182/hepdata.144335.v1/t16
title: "Cross-section limits for vvbb, ggF, tanbeta=0.5" of "Search for a CP-odd Higgs boson decaying into a heavy CP-even Higgs boson and a $Z$ boson in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states using 140 fb$^{-1}$ of data collected with the ATLAS detector"

description: Expected and observed upper limits at 95% CL on sigma(gg-&gt;A)*B(A-&gt;ZH)*B(H-&gt;bb) in the (mA,mH) plane. The limits are shown for tanbeta=0.5. The tanbeta value is relevant only for the choice of the A boson width. <br><br>return to overview
description: A search for a heavy CP-odd Higgs boson, $A$, decaying into a $Z$ boson and a heavy CP-even Higgs boson, $H$, is presented using the full LHC Run 2 dataset of $pp$ collisions at $\sqrt{s}=13$ TeV collected with the ATLAS detector, corresponding to an integrated luminosity of $140$ fb$^{-1}$. The search for $A\to ZH$ is performed in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states and extends the reach of previous searches into different final states in the region with $m_H&gt;350$ GeV and $m_A&gt;800$ GeV. No significant deviation from the Standard Model expectation is found. Upper limits on the production cross-section times the decay branching ratios are set. Limits with a reduced model dependence are also presented as functions of the reconstructed $m(t\bar{t})$ and $m(b\bar{b})$ distributions in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ channel, respectively. In addition, an interpretation of the results in the context of two-Higgs-doublet models is given.
DOI: 10.17182/hepdata.144335.v1/t17
title: "Cross-section limits for vvbb, ggF, tanbeta=5" of "Search for a CP-odd Higgs boson decaying into a heavy CP-even Higgs boson and a $Z$ boson in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states using 140 fb$^{-1}$ of data collected with the ATLAS detector"

description: Expected and observed upper limits at 95% CL on sigma(gg-&gt;A)*B(A-&gt;ZH)*B(H-&gt;bb) in the (mA,mH) plane. The limits are shown for tanbeta=5. The tanbeta value is relevant only for the choice of the A boson width. <br><br>return to overview
description: A search for a heavy CP-odd Higgs boson, $A$, decaying into a $Z$ boson and a heavy CP-even Higgs boson, $H$, is presented using the full LHC Run 2 dataset of $pp$ collisions at $\sqrt{s}=13$ TeV collected with the ATLAS detector, corresponding to an integrated luminosity of $140$ fb$^{-1}$. The search for $A\to ZH$ is performed in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states and extends the reach of previous searches into different final states in the region with $m_H&gt;350$ GeV and $m_A&gt;800$ GeV. No significant deviation from the Standard Model expectation is found. Upper limits on the production cross-section times the decay branching ratios are set. Limits with a reduced model dependence are also presented as functions of the reconstructed $m(t\bar{t})$ and $m(b\bar{b})$ distributions in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ channel, respectively. In addition, an interpretation of the results in the context of two-Higgs-doublet models is given.
DOI: 10.17182/hepdata.144335.v1/t18
title: "Cross-section limits for vvbb, bbA, tanbeta=1" of "Search for a CP-odd Higgs boson decaying into a heavy CP-even Higgs boson and a $Z$ boson in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states using 140 fb$^{-1}$ of data collected with the ATLAS detector"

description: Expected and observed upper limits at 95% CL on sigma(bbA)*B(A-&gt;ZH)*B(H-&gt;bb) in the (mA,mH) plane. The limits are shown for tanbeta=1. The tanbeta value is relevant only for the choice of the A boson width. <br><br>return to overview
description: A search for a heavy CP-odd Higgs boson, $A$, decaying into a $Z$ boson and a heavy CP-even Higgs boson, $H$, is presented using the full LHC Run 2 dataset of $pp$ collisions at $\sqrt{s}=13$ TeV collected with the ATLAS detector, corresponding to an integrated luminosity of $140$ fb$^{-1}$. The search for $A\to ZH$ is performed in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states and extends the reach of previous searches into different final states in the region with $m_H&gt;350$ GeV and $m_A&gt;800$ GeV. No significant deviation from the Standard Model expectation is found. Upper limits on the production cross-section times the decay branching ratios are set. Limits with a reduced model dependence are also presented as functions of the reconstructed $m(t\bar{t})$ and $m(b\bar{b})$ distributions in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ channel, respectively. In addition, an interpretation of the results in the context of two-Higgs-doublet models is given.
DOI: 10.17182/hepdata.144335.v1/t19
title: "Cross-section limits for vvbb, bbA, tanbeta=5" of "Search for a CP-odd Higgs boson decaying into a heavy CP-even Higgs boson and a $Z$ boson in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states using 140 fb$^{-1}$ of data collected with the ATLAS detector"

description: Expected and observed upper limits at 95% CL on sigma(bbA)*B(A-&gt;ZH)*B(H-&gt;bb) in the (mA,mH) plane. The limits are shown for tanbeta=5. The tanbeta value is relevant only for the choice of the A boson width. <br><br>return to overview
description: A search for a heavy CP-odd Higgs boson, $A$, decaying into a $Z$ boson and a heavy CP-even Higgs boson, $H$, is presented using the full LHC Run 2 dataset of $pp$ collisions at $\sqrt{s}=13$ TeV collected with the ATLAS detector, corresponding to an integrated luminosity of $140$ fb$^{-1}$. The search for $A\to ZH$ is performed in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states and extends the reach of previous searches into different final states in the region with $m_H&gt;350$ GeV and $m_A&gt;800$ GeV. No significant deviation from the Standard Model expectation is found. Upper limits on the production cross-section times the decay branching ratios are set. Limits with a reduced model dependence are also presented as functions of the reconstructed $m(t\bar{t})$ and $m(b\bar{b})$ distributions in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ channel, respectively. In addition, an interpretation of the results in the context of two-Higgs-doublet models is given.
DOI: 10.17182/hepdata.144335.v1/t20
title: "Cross-section limits for vvbb, bbA, tanbeta=20" of "Search for a CP-odd Higgs boson decaying into a heavy CP-even Higgs boson and a $Z$ boson in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states using 140 fb$^{-1}$ of data collected with the ATLAS detector"

description: Expected and observed upper limits at 95% CL on sigma(bbA)*B(A-&gt;ZH)*B(H-&gt;bb) in the (mA,mH) plane. The limits are shown for tanbeta=20. The tanbeta value is relevant only for the choice of the A boson width. <br><br>return to overview
description: A search for a heavy CP-odd Higgs boson, $A$, decaying into a $Z$ boson and a heavy CP-even Higgs boson, $H$, is presented using the full LHC Run 2 dataset of $pp$ collisions at $\sqrt{s}=13$ TeV collected with the ATLAS detector, corresponding to an integrated luminosity of $140$ fb$^{-1}$. The search for $A\to ZH$ is performed in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states and extends the reach of previous searches into different final states in the region with $m_H&gt;350$ GeV and $m_A&gt;800$ GeV. No significant deviation from the Standard Model expectation is found. Upper limits on the production cross-section times the decay branching ratios are set. Limits with a reduced model dependence are also presented as functions of the reconstructed $m(t\bar{t})$ and $m(b\bar{b})$ distributions in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ channel, respectively. In addition, an interpretation of the results in the context of two-Higgs-doublet models is given.
DOI: 10.17182/hepdata.144335.v1/t21
title: "m(lltt)-m(tt),L3hi_Zin_Hin450,bbA-production" of "Search for a CP-odd Higgs boson decaying into a heavy CP-even Higgs boson and a $Z$ boson in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states using 140 fb$^{-1}$ of data collected with the ATLAS detector"

description: The distribution of the fit discriminant m(lltt)-m(tt) in the signal region of the lltt channel for the mH=450 GeV hypothesis with the bbA signal shown for comparison. <br><br>return to overview
description: A search for a heavy CP-odd Higgs boson, $A$, decaying into a $Z$ boson and a heavy CP-even Higgs boson, $H$, is presented using the full LHC Run 2 dataset of $pp$ collisions at $\sqrt{s}=13$ TeV collected with the ATLAS detector, corresponding to an integrated luminosity of $140$ fb$^{-1}$. The search for $A\to ZH$ is performed in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states and extends the reach of previous searches into different final states in the region with $m_H&gt;350$ GeV and $m_A&gt;800$ GeV. No significant deviation from the Standard Model expectation is found. Upper limits on the production cross-section times the decay branching ratios are set. Limits with a reduced model dependence are also presented as functions of the reconstructed $m(t\bar{t})$ and $m(b\bar{b})$ distributions in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ channel, respectively. In addition, an interpretation of the results in the context of two-Higgs-doublet models is given.
DOI: 10.17182/hepdata.144335.v1/t22
title: "m(tt),L3hi_Zin,bbA-production" of "Search for a CP-odd Higgs boson decaying into a heavy CP-even Higgs boson and a $Z$ boson in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states using 140 fb$^{-1}$ of data collected with the ATLAS detector"

description: The m(tt) distribution in the L3hi_Zin region of the lltt channel for the mH=450 GeV hypothesis with the bbA signal shown for comparison. <br><br>return to overview
description: A search for a heavy CP-odd Higgs boson, $A$, decaying into a $Z$ boson and a heavy CP-even Higgs boson, $H$, is presented using the full LHC Run 2 dataset of $pp$ collisions at $\sqrt{s}=13$ TeV collected with the ATLAS detector, corresponding to an integrated luminosity of $140$ fb$^{-1}$. The search for $A\to ZH$ is performed in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states and extends the reach of previous searches into different final states in the region with $m_H&gt;350$ GeV and $m_A&gt;800$ GeV. No significant deviation from the Standard Model expectation is found. Upper limits on the production cross-section times the decay branching ratios are set. Limits with a reduced model dependence are also presented as functions of the reconstructed $m(t\bar{t})$ and $m(b\bar{b})$ distributions in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ channel, respectively. In addition, an interpretation of the results in the context of two-Higgs-doublet models is given.
DOI: 10.17182/hepdata.144335.v1/t23
title: "m(lltt)-m(tt),L3hi_Zin_Hin350,ggF-production" of "Search for a CP-odd Higgs boson decaying into a heavy CP-even Higgs boson and a $Z$ boson in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states using 140 fb$^{-1}$ of data collected with the ATLAS detector"

description: The distribution of the fit discriminant m(lltt)-m(tt) in the signal region of the lltt channel for the mH=350 GeV hypothesis. <br><br>return to overview
description: A search for a heavy CP-odd Higgs boson, $A$, decaying into a $Z$ boson and a heavy CP-even Higgs boson, $H$, is presented using the full LHC Run 2 dataset of $pp$ collisions at $\sqrt{s}=13$ TeV collected with the ATLAS detector, corresponding to an integrated luminosity of $140$ fb$^{-1}$. The search for $A\to ZH$ is performed in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states and extends the reach of previous searches into different final states in the region with $m_H&gt;350$ GeV and $m_A&gt;800$ GeV. No significant deviation from the Standard Model expectation is found. Upper limits on the production cross-section times the decay branching ratios are set. Limits with a reduced model dependence are also presented as functions of the reconstructed $m(t\bar{t})$ and $m(b\bar{b})$ distributions in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ channel, respectively. In addition, an interpretation of the results in the context of two-Higgs-doublet models is given.
DOI: 10.17182/hepdata.144335.v1/t24
title: "m(lltt)-m(tt),L3hi_Zin_Hin400,ggF-production" of "Search for a CP-odd Higgs boson decaying into a heavy CP-even Higgs boson and a $Z$ boson in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states using 140 fb$^{-1}$ of data collected with the ATLAS detector"

description: The distribution of the fit discriminant m(lltt)-m(tt) in the signal region of the lltt channel for the mH=400 GeV hypothesis. <br><br>return to overview
description: A search for a heavy CP-odd Higgs boson, $A$, decaying into a $Z$ boson and a heavy CP-even Higgs boson, $H$, is presented using the full LHC Run 2 dataset of $pp$ collisions at $\sqrt{s}=13$ TeV collected with the ATLAS detector, corresponding to an integrated luminosity of $140$ fb$^{-1}$. The search for $A\to ZH$ is performed in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ final states and extends the reach of previous searches into different final states in the region with $m_H&gt;350$ GeV and $m_A&gt;800$ GeV. No significant deviation from the Standard Model expectation is found. Upper limits on the production cross-section times the decay branching ratios are set. Limits with a reduced model dependence are also presented as functions of the reconstructed $m(t\bar{t})$ and $m(b\bar{b})$ distributions in the $\ell^+\ell^- t\bar{t}$ and $\nu\bar{\nu}b\bar{b}$ channel, respectively. In addition, an interpretation of the results in the context of two-Higgs-doublet models is given.