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Search for a light CP-odd Higgs boson decaying into a pair of $\tau$-leptons in proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector
This paper reports a search for a light CP-odd resonance with a mass of $20\,\mathrm{GeV}$ to $90\,\mathrm{GeV}$ in $13\,\mathrm{TeV}$ proton-proton collision data with an integrated luminosity of $140\,\mathrm{fb}^{-1}$ collected with the ATLAS detector at the Large Hadron Collider. The analysis assumes the resonance is produced via gluon-gluon fusion and decays exclusively into a $\tau^{+}\tau^{-}$ pair which decays into a fully leptonic $\mu^{+}\nu_{\mu} \bar{\nu}_{\tau} e^{-} \bar{\nu}_{e} \nu_{\tau}$ or $e^{+}\nu_{e}\bar{\nu}_{\tau} \mu^-\bar{\nu}_{\mu}\nu_{\tau}$ final state. No significant excess of events above the predicted Standard Model background is observed. The results are interpreted within a flavour-aligned two-Higgs-doublet model, and a model-independent cross-section interpretation is also given. Upper limits between $3.0\,\mathrm{pb}$ and $67.5\,\mathrm{pb}$ at $95\%$ confidence level are set on the cross-section for producing a CP-odd Higgs boson that decays into a $\tau^+\tau^-$ pair.
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$m_\mathrm{MMC}$ distribution in low-mass SR ($m_A$ = 20 GeV)
Data from Figure 6a
10.17182/hepdata.153948.v1/t1
Post-fit $m_\mathrm{MMC}$ distribution in the low-mass SR for the $m_A = 20\,\mathrm{GeV}$ signal mass hypothesis. $m_\mathrm{MMC}$ is the mass reconstructed...
$m_\mathrm{MMC}$ distribution in high-mass SR ($m_A$ = 90 GeV)
Data from Figure 6b
10.17182/hepdata.153948.v1/t2
Post-fit $m_\mathrm{MMC}$ distribution in the high-mass SR for the $m_A = 90\,\mathrm{GeV}$ signal mass hypothesis. $m_\mathrm{MMC}$ is the mass reconstructed...
Upper limits on $gg \rightarrow A \rightarrow \tau\tau$
Data from Figure 7
10.17182/hepdata.153948.v1/t3
Expected and observed $95\%$ CL limits on the production cross-section for $gg\rightarrow A$ times the branching ratio for $A$ decaying...
Upper limits on the up-type quark coupling parameter
Data from Figure 8
10.17182/hepdata.153948.v1/t4
Expected and observed $95\%$ CL limits on the absolute value of the up-type quark coupling parameter $|\zeta_\mathrm{u}|$ for masses of...
$p_0$ value, fit of $gg \rightarrow A \rightarrow \tau\tau$
Data from Aux. Figure 14a
10.17182/hepdata.153948.v1/t5
Observed $p_0$ values for the fits on the production cross-section for $gg\rightarrow A$ times the branching ratio for $A$ decaying...
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When using this data, please cite the original publication:
ATLAS
Collaboration
(2024).
Search for a light CP-odd Higgs boson decaying into a pair of $\tau$-leptons in proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector. CERN-EP-2024-235.
Search for a light CP-odd Higgs boson decaying into a pair of $\tau$-leptons in proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector. HEPData (collection).
https://doi.org/10.17182/hepdata.153948
or, if you prefer, a specific version of the
record:
ATLAS
Collaboration
(2024).
Search for a light CP-odd Higgs boson decaying into a pair of $\tau$-leptons in proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector (Version 1). HEPData (collection).
https://doi.org/10.17182/hepdata.153948.v1
You can also cite the 5 data
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ATLAS
Collaboration
(2024).
“$m_\mathrm{MMC}$ distribution in low-mass SR ($m_A$ = 20 GeV)” of “Search for a light CP-odd Higgs boson decaying into a pair of $\tau$-leptons in proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.153948.v1/t1
ATLAS
Collaboration
(2024).
“$m_\mathrm{MMC}$ distribution in high-mass SR ($m_A$ = 90 GeV)” of “Search for a light CP-odd Higgs boson decaying into a pair of $\tau$-leptons in proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.153948.v1/t2
ATLAS
Collaboration
(2024).
“Upper limits on $gg \rightarrow A \rightarrow \tau\tau$” of “Search for a light CP-odd Higgs boson decaying into a pair of $\tau$-leptons in proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.153948.v1/t3
ATLAS
Collaboration
(2024).
“Upper limits on the up-type quark coupling parameter” of “Search for a light CP-odd Higgs boson decaying into a pair of $\tau$-leptons in proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.153948.v1/t4
ATLAS
Collaboration
(2024).
“$p_0$ value, fit of $gg \rightarrow A \rightarrow \tau\tau$” of “Search for a light CP-odd Higgs boson decaying into a pair of $\tau$-leptons in proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.153948.v1/t5
When using this data, please cite the original publication:
ATLAS
Collaboration
(2024).
Search for a light CP-odd Higgs boson decaying into a pair of $\tau$-leptons in proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector. CERN-EP-2024-235.
or, if you prefer, a specific version of the
record:
You can also cite the 5 data
tables
individually.
Data tables
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