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	BDT Partikelidentifiering	Saknad transversell energi
Ämnesområde	Partikelfysik	Partikelfysik
Familj	Process / pipeline	Process / pipeline
Ursprungsår	2000	1990
Upphovsperson	Machine learning / particle physics community	Neutrino physics community (post-1960s)
Typ	Particle discrimination algorithm	Invisible particle detection method
Ursprungskälla	Breiman, L. (2001). Random Forests. Machine Learning, 45(1), 5–32.	Khachatryan, V., et al. (CMS Collaboration). (2014). Performance of missing transverse momentum reconstruction in proton-proton collisions at 7 TeV with ATLAS. Journal of High Energy Physics, 2012(07), 167.
Alias	BDT classifier, MVA particle ID, multivariate particle identification	MET, missing transverse momentum, invisible energy
Närliggande	3	3
Sammanfattning	Boosted Decision Trees (BDTs) are powerful multivariate classifiers used in particle physics to distinguish between different particle types based on detector signatures. By combining many weak decision trees through adaptive boosting, BDTs achieve superior discrimination power compared to simple cuts, enabling improved purity and efficiency in particle identification and background rejection.	Missing transverse energy (MET) is a powerful technique used in high-energy physics to infer the presence of invisible particles, primarily neutrinos, that escape a detector without leaving a trace. By measuring the imbalance of transverse momentum in the event, physicists can detect signatures of weakly interacting particles crucial for studying the Standard Model and searching for new physics beyond it.