MINERvA Simulation-HCAL and ECAL Calorimetry

Jaewon Park

University of Rochester

Jupiter/MINERvA Group Meeting, Oct 4, 2006

2More Different OD slots

OD frame size is kept constant V6, V7 has one more slot than

V4 Having more slot means less i

nteraction material within limited space

V9 is a extreme case of V6 and V7

V8 is similar to V4 More slots have no gain V8 is a simpler design to make

orig 5.72 5.72 5.72 11.43         17.15 45.74

v1 5.72 5.72 11.43 11.43         11.43 45.73

v4 5 7.385 9.77 12.155         11.43 45.74

v6 6.86 6.86 6.86 6.86 6.86       11.43 45.73

v7 5 5.93 6.86 7.79 8.72       11.43 45.73

v8 5 5 12.15 12.15         11.43 45.73

v9 4.2875 4.2875 4.2875 4.2875 4.2875 4.2875 4.2875 4.2875 11.43 45.73

Slot sizes

3

Theta dependence with 3GeV, 5GeV

Old data used 2.2GeV

Try with higher energy

Leakage is a function of proton beam energy

More leakage on higher energy

Is it fair to use a=1.3 for higher energy?

4

Finding calibration const with infinite OD

2.2GeV 5GeV

Orig geom + 5cm x 19 layers Previous a=1.3 was found with 2.2GeV proton beam a=1.2 seems best with 5GeV

Try to make total energy constan

t

5

Trying leakage correction

Relative calibration const for OD=1.625 intead of 1.3

Theoretically wrong, but it seems to work

Better way is using interaction length but it’s a function of energy

6

Detector Logical Region

Scint onlyECALHCALNucl. target

0θ

40θ80θ

For HCAL study, lead can be ignored

For theta=0deg, particle will hit DS-HCAL.

For theta=40deg, it passes both DS-HCAL and OD

7

Detector Logical Region Scint onlyECALHCALNucl. target

135.09

106.

452

10.4

155.9

87.45

8

Interaction length as function of theta

20 40 60 80 100thetadeg0.5

11.522.533.5int length

20 40 60 80 100thetadeg0.5

11.522.533.5int length

20 40 60 80 100thetadeg1

2

3

4

5

int length

ID

DS

OD

ID

DS+OD

ID

ID+DS+OD

9

Interaction length: Comparison with data

2.2GeV V4 OD E_od is 1.3 times scal

ed Tried to make leakag

e correction with interaction length but haven’t succeeded yet

10

Interaction length: Comparison with data

5GeV proton V4 OD E_od is 1.3 times scal

ed

11

Thicker ECAL

Add high theta data point 3mm lead gives ~5% decrease on resolution (previously estimated ~10%) It’ll interesting to try with different OD slot position

12

X-planeU-planeV-planeOD

XUXVXUXV

X-plane U-planeV-plane

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

PMT boxnumber

Four frames

         5

   8

 12

   15

    18  

1 2         10   13   16     19

      4  6

7  9

 11

   14

    17  

  3                        

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

13

short

mid

2019

1817

1615

1413

1211short

mid

1234

56789

14

1 11 14 17 204 7

13 1619

2

6 9 12 1518

3

5 8

Additional clear cable

15

5 5-1 5-2 5-3 5-4 5-5 5-6 5-7 5-8 5-9 5-11 5-12 5-13 5-14 5-15 5-16 5-17 5-18 5-19 5-20

4 4-1 4-2 4-3 4-4 4-5 4-6 4-7 4-8 4-9 4-11 4-12 4-13 4-14 4-15 4-16 4-17 4-18 4-19 4-20

3 3-1 3-2 3-3 3-4 3-5 3-6 3-7 3-8 3-9 3-10 3-11 3-12 3-13 3-14 3-15 3-16 3-17 3-18 3-20

2 2-1 2-2 2-3 2-4 2-5 2-6 2-7 2-8 2-9 2-11 2-12 2-13 2-14 2-15 2-16 2-17 2-18 2-19 3-19

  1-1                 2-10                 2-20

1 1-2 1-3 1-4 1-5 1-6 1-7 1-8 1-9 1-10 1-11 1-12 1-13 1-14 1-15 1-16 1-17 1-18 1-19 1-20

5 1 2 3 4 5 6 7 8 9 11 12 13 14 15 16 17 18 19 20

4 1 2 3 4 5 6 7 8 9 11 12 13 14 15 16 17 18 19 20

3 1 2 3 4 5 6 7 8 9 11 12 13 14 15 16 17 18 19 20

2 1 2 3 4 5 6 7 8 9 11 12 13 14 15 16 17 18 19 20

                                       

1 1 2 3 4 5 6 7 8 9 11 12 13 14 15 16 17 18 19 20

Additional clear cable

Simple try

Need to use 10th row in PMT array

16

short

mid

2019

1817

1615

1413

1211short

mid

1234

56789

Only problem with the mapping is difficulty to change 4(bottom)5 and 17(bottom)16 (Need to check with PVC PMT boxes!)

These connection would use mid connector instead of short one