Abstract
After the data unfolding, absolute and normalized differential cross sections are available at the stable particle level.
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Notes
- 1.
The same ME, considered in the 4j comparisons, have been used for the validation: a NLO dijet ME with a hard emission for Powheg, a LO 2\(\rightarrow \)4 ME for Madgraph and a LO 2\(\rightarrow \)3 ME for Sherpa.
- 2.
CMS has recently released a new tune, CUETP6S1 [4], which improves the description of UE data at different collision energies; though, this tune has not been considered in these studies because it was not available at the time of the publication.
- 3.
Note that this conclusion seems not to be absolutely valid for every observable: studies related to Drell-Yan \(p_{\text {T}}\) [8] have shown that standalone Pythia6 predictions reproduce the data better than predictions obtained with Powheg+Pythia6; in this case, a retuning effort [9] is ongoing in order to fix this inconsistency.
- 4.
The results of the 4j measurements will be discussed in detail in Sect. 10.2.
- 5.
Note that this could not be performed in the data because the phase space available for the selection of b-jets is limited to \(|\eta |\) \(<\) 2.4, and it is not then possible to extend it up to the forward region.
- 6.
Predictions obtained with Madgraph are not included in the comparisons of differential cross sections because of a low number of selected events available for jet \(p_{\text {T}}\) \(>\) 250 GeV.
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Gunnellini, P. (2016). Cross Section Measurement of the 4j and 2b2j Channels and Comparisons with Predictions. In: Study of Double Parton Scattering Using Four-Jet Scenarios. Springer Theses. Springer, Cham. https://doi.org/10.1007/978-3-319-22213-4_10
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