Deep-learning top taggers or the end of QCD?
Deep-learning top taggers or the end of QCD?
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DOI:
10.1007/jhep05(2017)006
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发表时间:
2017-01
影响因子:
5.4
通讯作者:
Gregor Kasieczka;T. Plehn;Michael J. Russell;T. Schell
中科院分区:
文献类型:
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作者:
Gregor Kasieczka;T. Plehn;Michael J. Russell;T. Schell
Machine learning based on convolutional neural networks can be used to study jet images from the LHC. Top tagging in fat jets offers a well-defined framework to establish our DeepTop approach and compare its performance to QCD-based top taggers. We first optimize a network architecture to identify top quarks in Monte Carlo simulations of the Standard Model production channel. Using standard fat jets we then compare its performance to a multivariate QCD-based top tagger. We find that both approaches lead to comparable performance, establishing convolutional networks as a promising new approach for multivariate hypothesis-based top tagging.