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Identifying boosted objects with N-subjettiness
DOI:10.1007/JHEP03(2011)015.png)
摘要
En 中文
We introduce a new jet shape - N-subjettiness-designed to identify boosted hadronically-decaying objects like electroweak bosons and top quarks. Combined with a jet invariant mass cut, N-subjettiness is an effective discriminating variable for tagging boosted objects and rejecting the background of QCD jets with large invariant mass. In efficiency studies of boosted W bosons and top quarks, we find tagging efficiencies of 30% are achievable with fake rates of 1%. We also consider the discovery potential for new heavy resonances that decay to pairs of boosted objects, and find significant improvements are possible using N-subjettiness. In this way, N-subjettiness combines the advantages of jet shapes with the discriminating power seen in previous jet substructure algorithms.
Keyword:
Jets
Beyond Standard Model
Hadronic Colliders
期刊
IF:
5.5
论文数:
3.9W
被引数:
13.7W
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暂无机构信息

