LHCb plots for 2015 data

Dimuon plots

The approved dimuon (23/5) plot is superseded by those of CONF 2016-005.

See also LHCbPublicityPlotsCONF.

Pb-Pb plots (approved 23 May 2016)

General plots to define event activity classes

Plot Description
ecal_in_ecal_bins.png Ecal energy distribution in Pb-Pb collisions divided into event-activity classes. The highest event activity class is the 0-10%. This class corresponds also to most central collisions.

velo_in_ecal_bins.png Distribution of the number of clusters in the VELO in Pb-Pb collisions. The distribution is also divided into event activity classes of Ecal energy. The highest event-activity class corresponds to events with the highest number of VeloClusters.

velo_vs_ecal.png Correlation between the energy in the Ecal and the number of VeloClusters in Pb-Pb collisions.

J/ψ in event activity classes

Plot Description
jpsi_ecalbin_90_70.png Invariant mass distribution of J/ψ candidates in the event-activity class 70-90%

jpsi_ecalbin_70_50.png Invariant mass distribution of J/ψ candidates in the event-activity class 50-70%

D0 in event activity classes

Plot Description
d0_ecalbin_90_70.png Invariant mass distribution of D0 candidates in the event-activity class 70-90%

d0_ecalbin_70_50.png Invariant mass distribution of D0 candidates in the event-activity class 50-70%

K0s in event activity classes

Plot Description
d0_ecalbin_90_70.png Invariant mass distribution of K0s candidates in the event-activity class 70-90%

ks0_ecalbin_70_50.png Invariant mass distribution of K0s candidates in the event-activity class 50-70%

Λ in event activity classes

Plot Description
lambda_ecalbin_90_70.png Invariant mass distribution of Λ candidates in the event-activity class 70-90%

lambda_ecalbin_70_50.png Invariant mass distribution of Λ candidates in the event-activity class 50-70%

J/ψ in ultraperipheral Pb-Pb collisions

Plot Description
jpsi_diff_m.png Invariant mass distribution of J/ψ candidates in events containing only two long tracks and only two VeloTracks. No Downstream tracks, no Upstream tracks and no TT tracks are present. Number of hits in the SPD is also less than 20.

jpsi_diff_pt2.png pT2 distribution of the dimuon candidates, in the invariant mass range 3050 < M < 3150 MeV/c2, in events containing only two long tracks and only two VeloTracks. No Downstream tracks, no Upstream tracks and no TT tracks are present. Number of hits in the SPD is also less than 20.

Event display

Plot Description
Display-1.png Pb-Pb event display with J/ψ candidate

Display-2.png Pb-Pb event display with large number of reconstructed tracks (1130) and with a J/ψ candidate

* Link to the internal note on cds: LHCb-INT-2016-025

SMOG plots, pNe collisions (approved 23 May 2016)

J/ψ

Plot Description
Jpsi_pNe.png Invariant mass distribution of J/ψ candidates.

D0

Plot Description
D0_pNe.png Invariant mass distribution of D0 candidates.

* Link to the internal note on cds: LHCb-INT-2016-025

Questions received during talks regarding the publicity plots

Question about track reconstruction in Pb-Pb: are the limitations hardware or software?

We are using so far the standard pp reconstruction and tracking, i.e. our software is not yet optimised for extremely high occupancies. We plan to have in the future dedicated tracking algorithms and reconstruction optimised for high occupancy events as PbPb and pPb/SMOG.

-- SilviaBorghi - 2016-05-23

Topic attachments
I Attachment History Action Size Date Who Comment
PDFpdf All2015-1193-1209-1210-PID-exclusive-rstackUpsilon.pdf r1 manage 170.3 K 2016-05-25 - 11:14 PatrickSKoppenburg  
PNGpng All2015-1193-1209-1210-PID-exclusive-rstackUpsilon.png r1 manage 22.0 K 2016-05-25 - 11:14 PatrickSKoppenburg  
PDFpdf D0_pNe.pdf r1 manage 18.0 K 2016-05-26 - 12:03 LaureMassacrier  
PNGpng D0_pNe.png r1 manage 88.4 K 2016-05-26 - 12:02 LaureMassacrier  
PDFpdf Display-1.pdf r1 manage 338.3 K 2016-05-26 - 11:06 LaureMassacrier  
PNGpng Display-1.png r1 manage 2459.0 K 2016-05-26 - 11:07 LaureMassacrier  
PDFpdf Display-2.pdf r1 manage 350.7 K 2016-05-26 - 11:08 LaureMassacrier  
PNGpng Display-2.png r1 manage 2552.9 K 2016-05-26 - 11:07 LaureMassacrier  
PDFpdf Jpsi_pNe.pdf r1 manage 18.2 K 2016-05-26 - 12:02 LaureMassacrier  
PNGpng Jpsi_pNe.png r1 manage 86.3 K 2016-05-26 - 12:13 LaureMassacrier  
PDFpdf d0_ecalbin_70_50.pdf r1 manage 19.2 K 2016-05-26 - 09:33 LaureMassacrier  
PNGpng d0_ecalbin_70_50.png r1 manage 113.4 K 2016-05-26 - 09:43 LaureMassacrier  
PDFpdf d0_ecalbin_90_70.pdf r1 manage 18.7 K 2016-05-26 - 09:56 LaureMassacrier  
PNGpng d0_ecalbin_90_70.png r1 manage 109.0 K 2016-05-26 - 09:54 LaureMassacrier  
PDFpdf ecal_in_ecal_bins.pdf r1 manage 25.9 K 2016-05-26 - 10:18 LaureMassacrier  
PNGpng ecal_in_ecal_bins.png r1 manage 145.4 K 2016-05-26 - 10:18 LaureMassacrier  
PDFpdf jpsi_diff_m.pdf r1 manage 20.9 K 2016-05-26 - 09:58 LaureMassacrier  
PNGpng jpsi_diff_m.png r1 manage 120.9 K 2016-05-26 - 09:58 LaureMassacrier  
PDFpdf jpsi_diff_pt2.pdf r1 manage 19.2 K 2016-05-26 - 09:59 LaureMassacrier  
PNGpng jpsi_diff_pt2.png r1 manage 117.1 K 2016-05-26 - 09:59 LaureMassacrier  
PDFpdf jpsi_ecalbin_70_50.pdf r1 manage 20.5 K 2016-05-26 - 10:31 LaureMassacrier  
PNGpng jpsi_ecalbin_70_50.png r1 manage 116.5 K 2016-05-26 - 10:30 LaureMassacrier  
PDFpdf jpsi_ecalbin_90_70.pdf r1 manage 20.1 K 2016-05-26 - 10:31 LaureMassacrier  
PNGpng jpsi_ecalbin_90_70.png r1 manage 115.0 K 2016-05-26 - 10:31 LaureMassacrier  
PDFpdf ks0_ecalbin_70_50.pdf r1 manage 17.7 K 2016-05-26 - 10:37 LaureMassacrier  
PNGpng ks0_ecalbin_70_50.png r1 manage 119.1 K 2016-05-26 - 10:36 LaureMassacrier  
PDFpdf ks0_ecalbin_90_70.pdf r1 manage 19.4 K 2016-05-26 - 10:38 LaureMassacrier  
PNGpng ks0_ecalbin_90_70.png r1 manage 105.3 K 2016-05-26 - 10:37 LaureMassacrier  
PDFpdf lambda_ecalbin_70_50.pdf r1 manage 20.1 K 2016-05-26 - 10:41 LaureMassacrier  
PNGpng lambda_ecalbin_70_50.png r1 manage 114.5 K 2016-05-26 - 10:41 LaureMassacrier  
PDFpdf lambda_ecalbin_90_70.pdf r1 manage 20.2 K 2016-05-26 - 10:42 LaureMassacrier  
PNGpng lambda_ecalbin_90_70.png r1 manage 120.5 K 2016-05-26 - 10:42 LaureMassacrier  
PDFpdf velo_in_ecal_bins.pdf r1 manage 30.6 K 2016-05-26 - 10:19 LaureMassacrier  
PNGpng velo_in_ecal_bins.png r1 manage 117.2 K 2016-05-26 - 10:19 LaureMassacrier  
PDFpdf velo_vs_ecal.pdf r1 manage 122.8 K 2016-05-26 - 10:20 LaureMassacrier  
PNGpng velo_vs_ecal.png r1 manage 234.3 K 2016-05-26 - 10:19 LaureMassacrier  
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Topic revision: r7 - 2016-10-27 - PatrickSKoppenburg
 
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