LPC Physics Forum

Thursday 13 Nov 2025, 13:00 → 14:00 US/Central

Sunrise (WH11NW) (FNAL/Zoom)

https://cern.zoom.us/j/96898909340

13:00 → 14:00 Observation of the upsilon to ditau process and search for a low mass resonance decaying to ditau using data scouting at CMS

A presentation of the first observation of the upsilon meson decaying to tau leptons at a hadron collider and and the first Run-3 Scouting inclusive search for light resonances using hadronic taus. Data scouting at CMS has lowered thresholds allowing for reco-level trigger limited analyses to gain significant sensitivity at the cost of reduced information per event. An innovative scouting-based hadronic tau object was implemented in 2022-2023 CMS data using particle flow and has been shown to be sensitive down to 5 GeV by opening the tau cone. In addition to observing the upsilon, this object was used to search for a low mass scalar boson decaying to di-tau. This work represents the first inclusive di-tau search with a hadronic signature from 20 to 60 GeV in mass.

Speaker: Connor Houghton (Rutgers State Univ. of New Jersey (US))

LPC_PF_13Nov2025_Connor_Houghton_Recording.mp4

LPCTalk3.pdf