手法を比較

	ミッシング横方向エネルギー	反kTジェットアルゴリズム
分野	素粒子物理学	素粒子物理学
系統	Process / pipeline	Process / pipeline
提唱年	1990	2008
提唱者	Neutrino physics community (post-1960s)	Matteo Cacciari and Gavin P. Salam
種類	Invisible particle detection method	Particle clustering algorithm
原典	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.	Cacciari, M., Salam, G. P., & Sapeta, S. (2008). On the characterisation of the underlying event. Journal of High Energy Physics, 2008(04), 063.
別名	MET, missing transverse momentum, invisible energy	anti-kt clustering, anti-kT algorithm
関連	3	3
概要	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.	The anti-kT jet algorithm, introduced by Cacciari and Salam in 2008, is a sequential recombination jet clustering algorithm widely used in high-energy physics to group final-state particles into jets. Unlike earlier algorithms, anti-kT produces jets with regular cone-like geometries in transverse momentum-rapidity space, making it ideal for precision measurements and new physics searches.