A search is presented for an extended Higgs sector with two new particles, (Formula presented) and (Formula presented), in the process (Formula presented). Novel neural networks classify events with diphotons that are merged and determine the diphoton masses. The search uses LHC proton-proton collision data at (Formula presented) collected with the CMS detector, corresponding to an integrated luminosity of (Formula presented). No evidence of such resonances is seen. Upper limits are set on the production cross section for (Formula presented) between 300 and 3000 GeV and (Formula presented) between 0.5% and 2.5%, representing the most sensitive search in this channel.

Hayrapetyan, A., Tumasyan, A., Adam, W., Andrejkovic, J., Bergauer, T., Chatterjee, S., et al. (2025). Search for New Resonances Decaying to Pairs of Merged Diphotons in Proton-Proton Collisions at sqrt(s)=13 TeV. PHYSICAL REVIEW LETTERS, 134(4) [10.1103/PhysRevLett.134.041801].

Search for New Resonances Decaying to Pairs of Merged Diphotons in Proton-Proton Collisions at sqrt(s)=13 TeV

Xiao J.;Benaglia A.;Boldrini G.;Brivio F.;Cetorelli F.;De Guio F.;Dinardo M. E.;Gerosa R.;Ghezzi A.;Govoni P.;Guzzi L.;Lucchini M. T.;Malberti M.;Massironi A.;Moroni L.;Paganoni M.;Palluotto S.;Pinolini B. S.;Pizzati G.;Ragazzi S.;Tabarelli de Fatis T.;Zuolo D.;
2025

Abstract

A search is presented for an extended Higgs sector with two new particles, (Formula presented) and (Formula presented), in the process (Formula presented). Novel neural networks classify events with diphotons that are merged and determine the diphoton masses. The search uses LHC proton-proton collision data at (Formula presented) collected with the CMS detector, corresponding to an integrated luminosity of (Formula presented). No evidence of such resonances is seen. Upper limits are set on the production cross section for (Formula presented) between 300 and 3000 GeV and (Formula presented) between 0.5% and 2.5%, representing the most sensitive search in this channel.
Articolo in rivista - Articolo scientifico
High Energy Physics; CMS Experiment; Beyond the Standard Model
English
30-gen-2025
2025
134
4
041801
open
Hayrapetyan, A., Tumasyan, A., Adam, W., Andrejkovic, J., Bergauer, T., Chatterjee, S., et al. (2025). Search for New Resonances Decaying to Pairs of Merged Diphotons in Proton-Proton Collisions at sqrt(s)=13 TeV. PHYSICAL REVIEW LETTERS, 134(4) [10.1103/PhysRevLett.134.041801].
File in questo prodotto:
File Dimensione Formato  
Hayrapetyan-2025-Phys Rev Lett-VoR.pdf

accesso aperto

Tipologia di allegato: Publisher’s Version (Version of Record, VoR)
Licenza: Creative Commons
Dimensione 1.07 MB
Formato Adobe PDF
1.07 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/554669
Citazioni
  • Scopus 1
  • ???jsp.display-item.citation.isi??? ND
Social impact