[PPT] - 11 de febrero 2017 Outline The efficciency for the pt spectra PowerPoint Presentation

SLIDE 1

Hèctor Bello Martinez 1

Hèctor Bello Martinez1,2 Antonio Ortìz Velazquez2 Arturo Fernandez Tellez

1

1. (FCFM-BUAP) 2.(ICN-UNAM)

11 de febrero 2017

Sphero(i)city technicalities ACO meeting

SLIDE 2

Hèctor Bello Martinez 2

Outline

The efficciency for the pt spectra calculated inside

the cuts on So true and So reconstructed for 10% So perc, Rebinning for high pt and considering 0< So <0.3 (no perc)

Response for Sopc_m vs So_m
Answere to referee’s questions in the text

SLIDE 3

Hèctor Bello Martinez 3

SLIDE 4

Hèctor Bello Martinez 4

SLIDE 5

Hèctor Bello Martinez 5

Comparison for percentile bins with best statistics. SPHEROCITY SPHERICITY

Greater eff. At high pT

We need to understand why this happen for Isotropic events with low mult

SLIDE 6

Hèctor Bello Martinez 6

So response for .tracks&particles within pt>0.15.

For efficiency the spectra Must be taken for events inside red boxes,

therwise jet contamination

could led to down the efficiency for low Nch

SLIDE 7

Hèctor Bello Martinez 7

Efficiency So_{t} not = So_{r} cases: MB Jetty Isotropic 0.0% <So_{r}< 10% 90% <So_{r}< 100% & 0.0% <So_{t}< 10% & 90% <So_{t}< 100%

Small Nch dependence also not good stat Only primary both in rec and true Pt Rebinning:

const Int_t nPtBins = 43; Double_t xBins[nPtBins+1]={0.01,0.1,0.12,0.14,0.16,0.18,0.2,0.2,0.3,0.35,0.4,0.45,0.5,0.55,0.6,0.65, 0.7,0.75,0.8,0.85,0.9,0.95,1,1.1,1.2,1.3,1.4,1.5,1.6,1.7,1.8,1.9,2,2.2,2.4,2.6,2.8,3,3.5,4,5,7,10,20}

SLIDE 8

Hèctor Bello Martinez 8

Efficiency So_{t} not = So_{r} cases: MB Jetty Isotropic 0.0 <So_{r}<0.3 0.7 <So_{r}< 1.0 & 0.0 <So_{t}<0.3 & 0.7 <So_{t}< 1.0

better stat Only primary both in rec and true Pt Rebinning:

const Int_t nPtBins = 42; Double_t xBins[nPtBins+1]={0.01,0.1,0.12,0.14,0.16,0.18,0.2,0.2,0.3,0.35,0.4,0.45,0.5,0.55,0.6,0.65, 0.7,0.75,0.8,0.85,0.9,0.95,1,1.1,1.2,1.3,1.4,1.5,1.6,1.7,1.8,1.9,2,2.2,2.4,2.6,2.8,3,3.5,4,5,10,20}

SLIDE 9

Hèctor Bello Martinez 9

So response (som vs somperc)

The idea: to get Soperc response matrix (Sopc_t vs Sopc_m)

SLIDE 10

Hèctor Bello Martinez 10

So response (som vs somperc)

The idea: to get Soperc response matrix (Sopc_t vs Sopc_m)

Something wrong first bin (Under investigation)

Flat is spected if all are 10% pc

SLIDE 11

Hèctor Bello Martinez 11

Conclusions

The effect just reflects that spherocity is quite sensitive to high

pT particles.

The slop down on efficiency increase when calculating the

spectra correctly in the So true and So reconstructed cuts avoiding the jet contamination.

To do

Check the percentile selection

Get response matrix for unfold So percentile So true

Unfold by weigths the yield Continue with the analisis of <pt> vs Nch for spherocity bins.

SLIDE 12

Hèctor Bello Martinez 12

Backup

SLIDE 13

Hèctor Bello Martinez 13

Efficiency So_{t} not = So_{r} cases: MB Jetty Isotropic 0.0 <So_{r}<0.3 0.7 <So_{r}< 1.0 & 0.0 <So_{t}<0.3 & 0.7 <So_{t}< 1.0

good stat Only primary both in rec and true Pt Rebinning:

const Int_t nPtBins = 43; Double_t xBins[nPtBins+1]={0.01,0.1,0.12,0.14,0.16,0.18,0.2,0.2,0.3,0.35,0.4,0.45,0.5,0.55,0.6,0.65, 0.7,0.75,0.8,0.85,0.9,0.95,1,1.1,1.2,1.3,1.4,1.5,1.6,1.7,1.8,1.9,2,2.2,2.4,2.6,2.8,3,3.5,4,5,7,10,20}

SLIDE 14

Hèctor Bello Martinez 14

Efficiency So_{t} not = So_{r} cases: MB Jetty Isotropic 0.0% <So_{r}< 20% 80% <So_{r}< 100% & 0.0% <So_{t}< 20% & 80% <So_{t}< 100%

Efficiency increase Only primary both in rec and true

SLIDE 15

Hèctor Bello Martinez 15

Efficiency So_{t} not = So_{r} cases: MB Jetty Isotropic 0.0% <So_{r}< 10% 90% <So_{r}< 100% & 0.0% <So_{t}< 10% & 90% <So_{t}< 100%

Not good stat Only primary both in rec and true

SLIDE 16

Hèctor Bello Martinez 16

Some issues at the TPC runs (LHC15f) (ex. good run 226452 acc. RCT)

Some missing chambers as seen in:
https://aliqatpc.web.cern.ch/aliqatpc/data/2015/LHC15f/pass2/000226452/eta_

phi_pt.png https://aliqatpc.web.cern.ch/aliqatpc/data/2015/LHC15f/pass2/000226452/raw QAInformation.png

Specially eta<0 region

SLIDE 17

Hèctor Bello Martinez 17

So Mean values (true vs rec) for Nch and So bins

Difference of the order of 0.01, could give contamination of dijets Recalculation of efficiency with spectra within the respective mean So values is ongoing

SLIDE 18

Hèctor Bello Martinez 18

So response for .tracks&particles within 5>pt>0.15.

Jetty contribution to high Nch is supresed Isotropic mean increase due to the suppresion of high pt

SLIDE 19

Hèctor Bello Martinez 19

So response for .tracks&particles within 2>pt>0.15.

Jetty contribution to high Nch is supresed Isotropic mean increase due to the suppresion of high pt

SLIDE 20

Hèctor Bello Martinez 20

So response for .tracks&particles within 1.5>pt>0.15.

Jetty contribution to high Nch is supresed Isotropic mean increase due to the suppresion of high pt

SLIDE 21

Hèctor Bello Martinez 21

So, we analyze the efficiency for 3 cases: |eta|<0.8, -0.8<eta<0, 0.8>eta>0.

No So selection

SLIDE 22

Hèctor Bello Martinez 22

So, we analyze the efficiency for 3 cases: |eta|<0.8, -0.8<eta<0, 0.8>eta>0.

For jetty

SLIDE 23

Hèctor Bello Martinez 23

So, we analyze the efficiency for 3 cases: |eta|<0.8, -0.8<eta<0, 0.8>eta>0.

For Isotropic

SLIDE 24

Hèctor Bello Martinez 24

Phi vs pt, 3 cases: |eta|<0.8, -0.8<eta<0, 0.8>eta>0. No So selection.

SLIDE 25

Hèctor Bello Martinez 25

Phi vs pt, 3 cases: |eta|<0.8, -0.8<eta<0, 0.8>eta>0. Jetty.

presence of the missing chambers

SLIDE 26

Hèctor Bello Martinez 26

Phi vs pt, 3 cases: |eta|<0.8, -0.8<eta<0, 0.8>eta>0. Isotropic.

presence of the missing chambers