A focus of the CMS research involves identifying jets originated from quarks and gluons produced in high-energy proton-proton collisions. At the electroweak scale, resonances like the Z and W bosons, as well as the Higgs boson, are often produced with a significant Lorentz boost, causing their decay products to form large and massive jets, typically reconstructed as AK8 jets. Identifying the particle that initiates these jets is essential for distinguishing boosted bosons from the QCD background. This proceeding provides an overview of the use of boosted jet taggers in CMS, emphasizing new machine learning techniques. Additionally, it presents the validation of ML-based taggers for AK8 jets from boosted resonances decaying into bb¯, comparing CMS data with simulations.
Identification of Lorentz-boosted jets in the CMS experiment
Troiano, Donato
2025-01-01
Abstract
A focus of the CMS research involves identifying jets originated from quarks and gluons produced in high-energy proton-proton collisions. At the electroweak scale, resonances like the Z and W bosons, as well as the Higgs boson, are often produced with a significant Lorentz boost, causing their decay products to form large and massive jets, typically reconstructed as AK8 jets. Identifying the particle that initiates these jets is essential for distinguishing boosted bosons from the QCD background. This proceeding provides an overview of the use of boosted jet taggers in CMS, emphasizing new machine learning techniques. Additionally, it presents the validation of ML-based taggers for AK8 jets from boosted resonances decaying into bb¯, comparing CMS data with simulations.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
