Speaker
Description
Motivated by the multi-lepton anomalies at the LHC, a sideband analysis of γγ, Zγ, and WW spectra in Run 2 data reveals a narrow resonance
at mS = 152 ±1 GeV with a global significance of 5.3σ, while the ZZ channel remains SM-
like. This pattern is consistent with the Real Higgs Triplet (RHT) model with hypercharge
Y = 0, in which S does not couple to ZZ at tree level. In this framework, triplet scalars can
be produced by Drell-Yan process and decay into electroweak bosons, leading to enhanced
triboson final states. Intriguingly, ATLAS and CMS measurements exhibit a systematic
elevation in VVV final states, where V= W,Z, including topologies like WWW, WWZ,
and tWZ. We investigate whether the RHT model can account for these features through
electroweak production and decay of triplet scalars, and discuss implications for future high-
precision facilities such as the CEPC.
