PAT: The CMS Physics Analysis Toolkit

Adam, W.; Adler, V.; Hegner, B.; Lista, L.; Lowette, S.; Maksimović, P.; Petrucciani, G.; Rappoccio, S.; Ronga, F. J.; Тенчини, Р.; Wolf, R.

doi:10.1088/1742-6596/219/3/032017

Cited by 4 publications

(4 citation statements)

References 1 publication

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“…In order to associate truth-level parton information with the PF candidates in MC, the generator objects must be matched to the PF objects from offline reconstruction (RECO) through MC matching. We follow the implementation of this matching from the CMSSW Physics Analysis Toolkit [105]. Specifically, we call the MCMatcher EDProducer within our configuration file.…”

Section: Analysing the Open Datamentioning

confidence: 99%

Disentangling quark and gluon jets with normalizing flows

Dolan

Ore

2023

Phys. Rev. D

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We use the CMS Open Data to examine the performance of weakly-supervised learning for tagging quark and gluon jets at the LHC. We target Z+jet and dijet events as respective quark-and gluonenriched mixtures and derive samples both from data taken in 2011 at 7 TeV, and from Monte Carlo. CWoLa and TopicFlow models are trained on real data and compared to fully-supervised classifiers trained on simulation. In order to obtain estimates for the discrimination power in real data, we consider three different estimates of the quark/gluon mixture fractions in the data. Compared to when the models are evaluated on simulation, we find reversed rankings for the fully-and weaklysupervised approaches. Further, these rankings based on data are robust to the estimate of the mixture fraction in the test set. Finally, we use TopicFlow to smooth statistical fluctuations in the small testing set, and to provide uncertainty on the performance in real data.

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Section: Analysing the Open Datamentioning

confidence: 99%

Disentangling quark and gluon jets with normalizing flows

Dolan

Ore

2023

Phys. Rev. D

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“…Physics Analysis Toolkit (PAT) [60] is a high-level analysis layer enabling the development of common analysis efforts across and within Physics Analysis Groups. It aims at fulfilling the needs of most CMS analyses, providing both ease-of-use for the beginner and flexibility for the advanced user.…”

Section: Physics Analysis Toolkitmentioning

confidence: 99%

Study of Jets Production Association with a Z boson in pp Collision at 7 and 8 TeV with the CMS Detector

Kovitanggoon¹

2014

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“…However, RECO/AOD can only be skimmed by keeping or dropping complete branches and not by selecting objects from branches. PAT has a solution for this in the form of a feature called embedding [15] that saves space usage and allows one to keep only the relevant information. For example, Jets contain reference to the Calorimetric Towers (CaloTowers) they were constructed from.…”

Section: Organising Analysis Workflowmentioning

confidence: 99%