Measurement of the forward energy flow in pp collisions at √s = 7 TeV

The preprint is available here.

Eur. Phys. J. C73 (2013) 2421

arXiV:1212.4755

More detailed information:ANA note 2012-086

Abstract

Abstract The energy flow created in pp collisions at sqrt(s) = 7 TeV is studied within the pseudorapidity range 1.9 < η < 4.9 with data collected by the LHCb experiment. The measurements are performed for inclusive minimum-bias inter- actions, hard scattering processes and events with an enhanced or suppressed diffractive contribution. The results are compared to predictions given by PYTHIA-based and cosmic-ray event generators, which provide different models of soft hadronic interactions.

Figures

(Note, eps versions are available under attachments).

Caption Figure
Fig. 1 Charged energy flow as a function of η for all event classes as indicated in the figures. The corrected measurements are given by points with error bars, while the predictions by the PYTHIA tunes are shown as histograms. The error bars represent the systematic uncertainties, which are highly correlated between the bins. The statistical uncertainties are negligible. The ratios of MC predictions to data are shown in addition Fig1a.png Fig1b.png Fig1c.png Fig1d.png
Fig. 2 Charged energy flow as a function of η for all event classes as indicated in the figures. The corrected measurements are given by points with error bars, while the predictions by the cosmic-ray interaction models are shown as histograms. The error bars represent the systematic uncertainties, which are highly correlated between the bins. The statistical uncertainties are negligible. The ratios of MC predictions to data are shown in addition. Fig2a.png Fig2b.png Fig2c.png Fig2d.png
Fig. 3 Total energy flow as a function of η for all event classes as indicated in the figures. The corrected measurements are given by points with error bars, while the predictions by the PYTHIA tunes are shown as histograms. The data obtained with extrapolated kη factors are shown in grey. The error bars represent the systematic uncertainties, which are highly correlated between the bins. The statistical uncertainties are negligible. The ratios of MC predictions to data are shown in addition. Fig3a.png Fig3b.png Fig3c.png Fig3d.png
Fig. 4 Total energy flow as a function of η for all event classes as indicated in the figures. The corrected measurements are given by points with error bars, while the predictions by the cosmic-ray interaction models are shown as histograms. The data obtained with extrapolated kη factors are shown in grey. The error bars represent the systematic uncertainties, which are highly correlated between the bins. The statistical uncertainties are negligible. The ratios of MC predictions to data are shown in addition Fig4a.png Fig4b.png Fig4c.png Fig4d.png

-- TaraShears - 18-Sep-2012

Topic attachments
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PNGpng Fig1.png r1 manage 16.1 K 2012-09-18 - 16:02 TaraShears  
Unknown file formateps Fig1a.eps r1 manage 64.9 K 2014-05-26 - 11:37 KatharinaMueller  
PDFpdf Fig1a.pdf r1 manage 16.3 K 2014-05-26 - 11:37 KatharinaMueller  
PNGpng Fig1a.png r1 manage 49.4 K 2014-05-26 - 11:37 KatharinaMueller  
Unknown file formateps Fig1b.eps r1 manage 66.4 K 2014-05-26 - 11:37 KatharinaMueller  
PDFpdf Fig1b.pdf r1 manage 16.5 K 2014-05-26 - 11:37 KatharinaMueller  
PNGpng Fig1b.png r1 manage 49.8 K 2014-05-26 - 11:37 KatharinaMueller  
Unknown file formateps Fig1c.eps r1 manage 64.8 K 2014-05-26 - 11:37 KatharinaMueller  
PDFpdf Fig1c.pdf r1 manage 16.2 K 2014-05-26 - 11:37 KatharinaMueller  
PNGpng Fig1c.png r1 manage 44.8 K 2014-05-26 - 11:37 KatharinaMueller  
Unknown file formateps Fig1d.eps r1 manage 64.9 K 2014-05-26 - 11:37 KatharinaMueller  
PDFpdf Fig1d.pdf r1 manage 16.3 K 2014-05-26 - 11:37 KatharinaMueller  
PNGpng Fig1d.png r1 manage 49.2 K 2014-05-26 - 11:37 KatharinaMueller  
Unknown file formateps Fig2.eps r1 manage 15.7 K 2012-09-18 - 16:01 TaraShears  
PNGpng Fig2.png r1 manage 27.6 K 2012-09-18 - 16:01 TaraShears  
Unknown file formateps Fig2a.eps r1 manage 65.1 K 2014-05-26 - 11:38 KatharinaMueller  
PDFpdf Fig2a.pdf r1 manage 16.3 K 2014-05-26 - 11:38 KatharinaMueller  
PNGpng Fig2a.png r1 manage 47.7 K 2014-05-26 - 11:38 KatharinaMueller  
Unknown file formateps Fig2b.eps r1 manage 66.2 K 2014-05-26 - 11:38 KatharinaMueller  
PDFpdf Fig2b.pdf r1 manage 16.5 K 2014-05-26 - 11:38 KatharinaMueller  
PNGpng Fig2b.png r1 manage 49.0 K 2014-05-26 - 11:38 KatharinaMueller  
Unknown file formateps Fig2c.eps r1 manage 64.9 K 2014-05-26 - 11:38 KatharinaMueller  
PDFpdf Fig2c.pdf r1 manage 16.4 K 2014-05-26 - 11:38 KatharinaMueller  
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PDFpdf Fig2d.pdf r1 manage 16.3 K 2014-05-26 - 11:38 KatharinaMueller  
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PDFpdf Fig3c.pdf r1 manage 16.1 K 2014-05-26 - 11:39 KatharinaMueller  
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Unknown file formateps Fig3d.eps r2 r1 manage 65.4 K 2014-05-26 - 11:39 KatharinaMueller  
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Unknown file formateps Fig4a.eps r2 r1 manage 65.1 K 2014-05-26 - 11:39 KatharinaMueller  
PDFpdf Fig4a.pdf r1 manage 16.3 K 2014-05-26 - 11:39 KatharinaMueller  
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Unknown file formateps Fig4b.eps r2 r1 manage 66.3 K 2014-05-26 - 11:40 KatharinaMueller  
PDFpdf Fig4b.pdf r1 manage 16.4 K 2014-05-26 - 11:40 KatharinaMueller  
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PDFpdf Fig4c.pdf r1 manage 16.2 K 2014-05-26 - 11:40 KatharinaMueller  
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Unknown file formateps Fig4d.eps r2 r1 manage 65.1 K 2014-05-26 - 11:40 KatharinaMueller  
PDFpdf Fig4d.pdf r1 manage 16.3 K 2014-05-26 - 11:40 KatharinaMueller  
PNGpng Fig4d.png r2 r1 manage 46.4 K 2014-05-26 - 11:40 KatharinaMueller  
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