# Evaluating Jet-Plus-Tracks Reconstruction for the CMS NGT Scouting Stream

- Institution: CERN
- Speaker: Weronika Karolina Sobien
- Year: 2026
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3026714)
- Licence: [CERN](https://copyright.web.cern)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

**Project Description**:

The CMS experiment relies on rapid event reconstruction at the High-Level Trigger to select interesting proton–proton collisions in real time. For the upcoming Run 4, the Next Generation Trigger (NGT) scouting stream aims to record events at exceptionally high rates by utilizing dedicated fast reconstruction algorithms and reduced data formats. This presentation evaluates the feasibility of the Jet-Plus-Tracks (JPT) algorithm as a lightweight alternative to the computationally intensive Particle Flow (PF) reconstruction. Using simulated Phase-2 CMS data, the study compares both approaches in terms of basic physics quantities, such as jet energies and event activity, as well as their computing footprint, specifically execution runtime and data size. The results highlight the trade-offs between physics performance and computing costs in the context of the Phase-2 scouting ecosystem.

**Supervisor**: Marco Musich, Marco Rovere

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## Lectures

1. [Evaluating Jet-Plus-Tracks Reconstruction for the CMS NGT Scouting Stream](https://invisiblenetwork.ai/learn/cern/3026714/d15e0448f146), 8 min (CERN's player)