# Probing BSM with the Higgs boson Width at CMS

- Institution: CERN
- Department: LHC Seminar
- Speaker: Ulascan Sarica
- Year: 2021
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3003224)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

Many models of new physics predict BSM particles that couple to the Higgs boson. Measurements of the Higgs boson width are a powerful way to probe these new physics scenarios and are complementary to direct searches for BSM particles. Recent measurements of the Higgs boson width using H->ZZ decays and of the invisible Higgs boson branching ratio have been performed at CMS with the full run 2 data set.

Stringent constraints on the invisible Higgs branching ratio are obtained, and evidence for offshell production of the Higgs boson is presented. The H->ZZ events are also used to set limits on anomalous couplings to vector bosons. These limits are compared with constraints on anomalous couplings obtained in a recent analysis of Higgs boson production in vector boson or gluon fusion, with Higgs boson decays into two tau leptons.

LHC Seminar - CMS: https://cern.zoom.us/j/68331239909?pwd=NHVMWXBNSU5qaW1Ecnl6VEFCRXVHZz09.

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## Lectures

1. [Probing BSM with the Higgs boson Width at CMS](https://invisiblenetwork.ai/learn/cern/3003224/5756fe9fe779), 47 min (CERN's player)