Update on: SN ratio SN thresholds in clustering Charge calibration - - PowerPoint PPT Presentation

SLIDE 1

Update on: SN ratio SN thresholds in clustering Charge calibration

8/7/16 Giacomo Caria and Phillip Urquijo University of Melbourne

SLIDE 2

simulation

p(GeV) 1 2 3 4 5 6 7 8 9 10 counts 50 100 150 200 250

Tracks momentum, unbiased

cTrackP

Entries 7555 Mean 2.964 Std Dev 1.603

Tracks momentum, unbiased

p(GeV) 1 2 3 4 5 6 7 8 9 10 counts 10 20 30 40 50

3

10 ×

Tracks momentum, unbiased

cTrackP

Entries 1336949 Mean 3.532 Std Dev 1.954

Tracks momentum, unbiased

TB data - run 329

Comparison of TB data with TB simulation

momentum reconstruction improved, due to new alignment ?

SLIDE 3

SN ratio 20 40 60 counts 100 200 300

Sensor: 3-2-U

size = 1 size = 2

SN ratio 20 40 60 counts 10 20 30 40 50

3

10 ×

Sensor: 3-2-U

size = 1 size = 2

Noise (ADU) 2 4 6 8 counts 2 4 6

3

10 ×

Sensor: 3-2-U

size = 1 size = 2

Noise (ADU) 2 4 6 8 counts 0.05 0.1 0.15 0.2

6

10 ×

Sensor: 3-2-U

size = 1 size = 2

SLIDE 4

SN ratio 20 40 60 counts 20 40 60 80

3

10 ×

Sensor: 3-2-V

size = 1 size = 2

Noise (ADU) 2 4 6 8 counts 0.05 0.1 0.15 0.2 0.25

6

10 ×

Sensor: 3-2-V

size = 1 size = 2

SN ratio 20 40 60 counts 100 200 300

Sensor: 3-2-V

size = 1 size = 2

Noise (ADU) 2 4 6 8 counts 1 2 3 4

3

10 ×

Sensor: 3-2-V

size = 1 size = 2

HIGHER IN SIM ! LOWER IN SIM !

SLIDE 5

SN ratio 20 40 60 counts 100 200 300

Sensor: 4-2-U

size = 1 size = 2

Noise (ADU) 2 4 6 8 counts 2 4 6

3

10 ×

Sensor: 4-2-U

size = 1 size = 2

SN ratio 20 40 60 counts 20 40 60

3

10 ×

Sensor: 4-2-U

size = 1 size = 2

Noise (ADU) 2 4 6 8 counts 0.05 0.1 0.15 0.2 0.25

6

10 ×

Sensor: 4-2-U

size = 1 size = 2

SLIDE 6

SN ratio 20 40 60 counts 20 40 60

3

10 ×

Sensor: 4-2-V

size = 1 size = 2

Noise (ADU) 2 4 6 8 counts 0.05 0.1 0.15 0.2

6

10 ×

Sensor: 4-2-V

size = 1 size = 2

SN ratio 20 40 60 counts 100 200 300 400

Sensor: 4-2-V

size = 1 size = 2

Noise (ADU) 2 4 6 8 counts 1 2 3 4

3

10 ×

Sensor: 4-2-V

size = 1 size = 2

HIGHER IN SIM ! LOWER IN SIM !

SLIDE 7

SN noise 2 3 4 5 6 7 8 SN seed 2 3 4 5 6 7 8

Side U, SN cls = 2

0.001

0.9956 0.1576

0.0009

0.9922 0.1642

0.0009

0.9894 0.165

0.0009

0.9871 0.1663

0.0008

0.9834 0.1785

0.0008

0.9781 0.1928

0.0007

0.9683 0.2067

0.0009

0.9927 0.163

0.0009

0.9927 0.163

0.0009

0.9896 0.1648

0.0009

0.9872 0.1662

0.0008

0.9834 0.1784

0.0008

0.9781 0.1928

0.0007

0.9683 0.2067

0.0009

0.9901 0.1635

0.0009

0.9901 0.1635

0.0009

0.9901 0.1635

0.0009

0.9876 0.1659

0.0008

0.9836 0.1782

0.0008

0.9782 0.1926

0.0007

0.9684 0.2066

0.0009

0.9882 0.1644

0.0009

0.9882 0.1644

0.0009

0.9882 0.1644

0.0009

0.9882 0.1644

0.0008

0.9839 0.1777

0.0008

0.9784 0.1923

0.0007

0.9684 0.2063

0.0009

0.985 0.1727

0.0009

0.985 0.1727

0.0009

0.985 0.1727

0.0009

0.985 0.1727

0.0009

0.985 0.1727

0.0008

0.9792 0.1893

0.0007

0.9691 0.2043

0.0008

0.9805 0.1839

0.0008

0.9805 0.1839

0.0008

0.9805 0.1839

0.0008

0.9805 0.1839

0.0008

0.9805 0.1839

0.0008

0.9805 0.1839

0.0007

0.9701 0.2006

0.0007

0.9712 0.1962

0.0007

0.9712 0.1962

0.0007

0.9712 0.1962

0.0007

0.9712 0.1962

0.0007

0.9712 0.1962

0.0007

0.9712 0.1962

0.0007

0.9712 0.1962

SN thresholds for clustering efficiency

efficiency fakes efficiency This is a tool to study to impact of SN thresholds in the SVD clustering efficiency. Should be repeated in the much higher background environment of Belle II.

SLIDE 8

Charge calibration ADU —> e/h pairs

cClusterDedx4-2

Entries 513550 Mean 5378 Std Dev 1473 / ndf

2

χ 1.395e+04 / 45 kappa 0.0 ± 0.1 beta2 0.0 ± 1 mean 1.7 ± 4836 sigma 1.2 ± 634.2 Amp 1.979e+02 ± 9.219e+04

ADU/cm 2 4 6 8 10 12

3

10 × counts 5 10 15 20 25

3

10 ×

cClusterDedx4-2

Entries 513550 Mean 5378 Std Dev 1473 / ndf

2

χ 1.395e+04 / 45 kappa 0.0 ± 0.1 beta2 0.0 ± 1 mean 1.7 ± 4836 sigma 1.2 ± 634.2 Amp 1.979e+02 ± 9.219e+04

U + V energy loss, layer 4, sensor 2

4-2-p=5

Entries 583194 Mean 3.67 Std Dev 1.626 / ndf

2

χ 4364 / 43 kappa 0.0 ± 0.1 beta2 0.0 ± 1 mean 0.001 ± 2.952 sigma 0.0008 ± 0.3316 Amp 1.359e+02 ± 6.149e+04

MeV/cm 2 4 6 8 10 12 counts 5 10 15

3

10 ×

4-2-p=5

Entries 583194 Mean 3.67 Std Dev 1.626 / ndf

2

χ 4364 / 43 kappa 0.0 ± 0.1 beta2 0.0 ± 1 mean 0.001 ± 2.952 sigma 0.0008 ± 0.3316 Amp 1.359e+02 ± 6.149e+04

4-2-p=5

SLIDE 9

Sensor Constant +/- error [e / ADU] 3.2 190.176 +/- 0.143 4.2 159.046 +/- 0.119 5.3 178.419 +/- 0.134 6.3 169.976 +/- 0.165 6.4 159.305 +/- 0.159

Calibration constants