Search for ${{\mathit X}^{0}}$ Resonance in ${{\mathit H}{(125)}}$ Decays

INSPIRE   PDGID:
S056HDC
Spin 1 is assumed for ${{\mathit X}^{0}}$. See neutral Higgs search listing for pseudoscalar ${{\mathit X}^{0}}$.
VALUE DOCUMENT ID TECN  COMMENT
• • We do not use the following data for averages, fits, limits, etc. • •
1
AAD
2022J
 ATLS ${{\mathit X}^{0}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$
2
AABOUD
2018AP
 ATLS ${{\mathit H}{(125)}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit X}^{0}}$
3
AABOUD
2018AP
 ATLS ${{\mathit H}{(125)}}$ $\rightarrow$ ${{\mathit X}^{0}}{{\mathit X}^{0}}$
1  AAD 2022J search for ${{\mathit X}^{0}}$ production via ${{\mathit H}{(125)}}$ $\rightarrow$ ${{\mathit X}^{0}}{{\mathit X}^{0}}$ $/$ ${{\mathit Z}}{{\mathit X}^{0}}$ $\rightarrow$ 4 ${{\mathit \ell}}$ in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV. ${{\mathit X}^{0}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$ decay is assumed. See their Fig. 13 and Fig. 17 for limits on $\sigma \cdot{}B$ in ${{\mathit H}{(125)}}$ $\rightarrow$ ${{\mathit X}^{0}}{{\mathit X}^{0}}$ and ${{\mathit H}{(125)}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit X}^{0}}$ channels.
2  AABOUD 2018AP use ${{\mathit p}}{{\mathit p}}$ collision data at $\sqrt {s }$ = 13 TeV. ${{\mathit X}^{0}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$ decay is assumed. See their Fig. 9 for limits on $\sigma _{{{\mathit H}{(125)}}}\cdot{}$B( ${{\mathit Z}}{{\mathit X}^{0}}$ ).
3  AABOUD 2018AP use ${{\mathit p}}{{\mathit p}}$ collision data at $\sqrt {s }$ = 13 TeV. ${{\mathit X}^{0}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$ decay is assumed. See their Fig. 10 for limits on $\sigma _{{{\mathit H}{(125)}}}\cdot{}$B( ${{\mathit X}^{0}}{{\mathit X}^{0}}$ ).
References:
AAD 2022J
JHEP 2203 041 Search for Higgs bosons decaying into new spin-0 or spin-1 particles in four-lepton final states with the ATLAS detector with 139 fb$^{-1}$ of $pp$ collision data at $\sqrt{s}=13$ TeV
AABOUD 2018AP
JHEP 1806 166 Search for Higgs boson decays to beyond-the-Standard-Model light bosons in four-lepton events with the ATLAS detector at $\sqrt{s}=13$ TeV