A search is presented for massive narrow-width resonances in the mass range of 1–4.5TeV, decaying into pairs of Higgs bosons (HH). The search uses proton–proton collision data at a center-of-mass energy of 13TeV collected with the CMS detector at the CERN LHC during 2016–2018, corresponding to an integrated luminosity of 138fb-1. The analysis targets final states where one Higgs boson decays into a pair of bottom quarks and the other into a pair of tau leptons, X→HH→bb¯τ+τ-. It uses a single large radius jet to reconstruct the H→bb¯ decay, while the H→τ+τ- decay products can either be contained within a single large radius jet or appear as two isolated tau leptons. The observed data are consistent with standard model background expectations. Upper limits at 95% confidence level are set on the production cross section for resonant HHproduction for masses between 1 and 4.5TeV. This analysis sets the most sensitive limits to date on X→HH→bb¯τ+τ- decays in the mass range of 1.4–4.5TeV.
Search for heavy resonances decaying into two Higgs bosons in the bb̄ τ ⁺ τ ⁻ final state in proton–proton collisions at √s = 13 Te\hspace-.08emV
Abbrescia, M.;Barbieri, M.;Buonsante, M.;Colaleo, A.;De Palma, M.;Elmetenawee, W.;Generoso, L.;Louka, M.;Mastrapasqua, V.;My, S.;Nenna, F.;Nuzzo, S.;Pellecchia, A.;Pompili, A.;Radogna, R.;Stamerra, A.;Troiano, D.;Venditti, R.;Zaza, A.;D'Anzi, B.;
2026-01-01
Abstract
A search is presented for massive narrow-width resonances in the mass range of 1–4.5TeV, decaying into pairs of Higgs bosons (HH). The search uses proton–proton collision data at a center-of-mass energy of 13TeV collected with the CMS detector at the CERN LHC during 2016–2018, corresponding to an integrated luminosity of 138fb-1. The analysis targets final states where one Higgs boson decays into a pair of bottom quarks and the other into a pair of tau leptons, X→HH→bb¯τ+τ-. It uses a single large radius jet to reconstruct the H→bb¯ decay, while the H→τ+τ- decay products can either be contained within a single large radius jet or appear as two isolated tau leptons. The observed data are consistent with standard model background expectations. Upper limits at 95% confidence level are set on the production cross section for resonant HHproduction for masses between 1 and 4.5TeV. This analysis sets the most sensitive limits to date on X→HH→bb¯τ+τ- decays in the mass range of 1.4–4.5TeV.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.


