Searches for additional Higgs bosons and for vector leptoquarks in ττ final states in proton-proton collisions at s = 13 TeV

The CMS collaboration [email protected]

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

Three searches are presented for signatures of physics beyond the standard model (SM) in ττ final states in proton-proton collisions at the LHC, using a data sample collected with the CMS detector at s = 13 TeV, corresponding to an integrated luminosity of 138 fb−1. Upper limits at 95% confidence level (CL) are set on the products of the branching fraction for the decay into τ leptons and the cross sections for the production of a new boson ϕ, in addition to the H(125) boson, via gluon fusion (ggϕ) or in association with b quarks, ranging from O(10 pb) for a mass of 60 GeV to 0.3 fb for a mass of 3.5 TeV each. The data reveal two excesses for ggϕ production with local p-values equivalent to about three standard deviations at mϕ = 0.1 and 1.2 TeV. In a search for t-channel exchange of a vector leptoquark U1, 95% CL upper limits are set on the dimensionless U1 leptoquark coupling to quarks and τ leptons ranging from 1 for a mass of 1 TeV to 6 for a mass of 5 TeV, depending on the scenario. In the interpretations of the Mh125 and Mh,EFT125 minimal supersymmetric SM benchmark scenarios, additional Higgs bosons with masses below 350 GeV are excluded at 95% CL.

Original languageEnglish
Article number73
JournalJournal of High Energy Physics
Volume2023
Issue number7
DOIs
Publication statusPublished - Jul 2023
Externally publishedYes

Bibliographical note

Publisher Copyright:
© The Author(s) 2023.

Keywords

  • Beyond Standard Model
  • Hadron-Hadron Scattering
  • Higgs Physics

Fingerprint

Dive into the research topics of 'Searches for additional Higgs bosons and for vector leptoquarks in ττ final states in proton-proton collisions at s = 13 TeV'. Together they form a unique fingerprint.

Cite this