[PPT] - Mu o n C o l l i d e r D e t e c t o r S i m u PowerPoint Presentation

SLIDE 1

Mu

n

C

l

l i d e r D e t e c t

r

S i m u l a t i

n

a n d C a l

r

i m e t r y

 A

l e x a n d e r C

n

w a y

 A

n a l y s i s

f

m c d , a n i d e a l d e p t h

s

e g m e n t e d

 m

u

n

c

l

l i d e r d e t e c t

r

m

d

e l .

SLIDE 2

N

r

m a n G r a f

Mu

n

C

l

l i d e r D e t e c t

r

v . . ( m c d )

SLIDE 3

C a l

r

i m e t e r P r

p

e r t i e s

NUM LAYERS

EM Hadron Muon

Ma t e r i a l T u n g s t e n S t e e l 2 3 5 * I r

n

Z 7 4

2

6 D e n s i t y { g / c m ^ 3 } 1 9 . 3 7 . 8 7 7 . 8 5 C e l l s i z e { c m ^ 3 } 1 2 1 D e t e c t

r

D e p t h { c m } 1 8 3 R a d i a t i

n

L e n g t h 6 . 7 6

g / c m ^ 2

. 3 5 c m 1 3 . 9

g / c m ^ 2

1 . 7 6 c m 1 3 . 8

g / c m ^ 2

1 . 7 6 c m N u c l e a r I n t e r a c t i

n

L e n g t h 1 8 5

g / c m ^ 2

9 . 5 8 c m 1 3 2 . 1

g / c m ^ 2

1 6 . 8 c m 1 3 1 . 9

g / c m ^ 2

1 6 . 8 c m *http://iopscience.iop.org/1748-0221/5/05/P05004/pdf/1748-0221_5_05_P05004.pdf Data from http://pdg.lbl.gov/2010/AtomicNuclearProperties

SLIDE 4

B e a m ' s

e

y e v i e w

f

a s i n g l e 1 G e V p i

n

e v e n t

SLIDE 5

Bernd Surrow http://physics.bu. edu/neppsr/2006 /TALKS- 2006/Calorimetry _Surrow.pdf

SLIDE 6

S t u d y i n g t h e D e t e c t

r
S

i m p l i s t i c m

d

e l :

S

i n g l e p a r t i c l e e v e n t s

N
n
i

s e

C

a l

r

i m e t e r p r

p

e r t i e s :

T
t

a l a b s

r

p t i

n
H
m
g

e n e

u

s

S

e n s i t i v e

E

s t a b l i s h b a s e l i n e p r

p

e r t i e s

SLIDE 7

S t u d y i n g t h e D e t e c t

r
E

n e r g y r e s

l

u t i

n
H
w

m u c h c a n w e d e t e c t ?

H
w

m u c h d

e

s s i g n a l v a r y ?

C

a n w e c h a r a c t e r i z e p a r t i c l e s ?

C
n

s t r a i n t s t

a

d d

T

i m i n g c u t s

E

n e r g y d e p

s

i t i

n

t h r e s h

l

d

C

l u s t e r i n g

SLIDE 8

E s t a b l i s h i n g a B a s e l i n e : T i m i n g c u t s

S

i m u l a t e d 1 G e V e l e c t r

n

s a n d p i

n

s

H
w

f a s t d

s

h

w

e r s d e v e l

p

?

SLIDE 9

E n e r g y R e s p

n

s e w i t h v a r y i n g t i m e c u t

f

f s f r

m

t

1

n s

pions electrons

SLIDE 10

T i m e C u t

f

f C

m

p a r i s

n

s

Me a n e n e r g y r e s p

n

s e ( G e V ) R MS ( G e V ) R MS / s q r t ( E ) E l e c t r

n

s P i

n

s E l e c t r

n

s P i

n

s E l e c t r

n

s P i

n

s 1 n s 9 . 9 5 8 . 2 5 . 2 . 5 8 . 6 % 1 8 % 1 n s 9 . 9 5 7 . 7 6 . 3 . 7 2 1 % 2 3 . 7 % 1 n s 9 . 9 4 7 . 4 8 . 4 . 8 6 1 . 3 % 2 7 %

SLIDE 11

P i

n

e n e r g y r e s p

n

s e w i t h 1 n s a n d 1 n s c u t

f

f s

100ns 1000ns

GeV Mean (GeV) RMS (GeV) 1000ns 8.25 0.58 100ns 7.76 0.72

SLIDE 12

T i m e C u t

f

f C

m

p a r i s

n

s

RMS for electrons and pions 2D Histogram of energy responses for pions

SLIDE 13

T i m e C u t

f

f C

m

p a r i s

n

s

E

l e c t r

n

s :

C

h a r a c t e r i s t i c a l l y f a s t s h

w

e r d e v e l

p

m e n t a n d h i g h r e s

l

u t i

n

.

P

i

n

s :

S

l

w

e r s h

w

e r d e v e l

p

m e n t

L
w

e r e n e r g y r e s p

n

s e t h a t v a r i e s w i d e l y

Wi

l l h a v e t

u

s e

t

h e r a s p e c t s

f

t h e d e t e c t

r

t

c

h a r a c t e r i z e t h e s e a n d

t

h e r p a r t i c l e s ;

E

M c a l v s H c a l r e s p

n

s e , s h

w

e r s h a p e , t r a c k i n g , c h e r e n k

v

, e t c

SLIDE 14

Mi n i m u m I

n

i z i n g P a r t i c l e ( MI P )

R

e l a t i v i s t i c m u

n

s a p p r

x

i m a t e MI P s

L

i t t l e i n t e r a c t i

n

w i t h d e t e c t

r

b u t w i t h c h a r a c t e r i s t i c e n e r g y

Wa

n t t

s

e e t h i s MI P t r a i l

E

n e r g y t h r e s h

l

d m u s t b e l

w

e r t h a n MI P e n e r g y

U

s e m u

n

s t

m

e a s u r e t h e MI P e n e r g y s p e c i f i c t

e

a c h t y p e

f

c a l

r

i m e t e r

SLIDE 15

Mi n i m u m I

n

i z i n g P a r t i c l e ( MI P )

1 G e V M u

n

SLIDE 16

Mi n i m u m I

n

i z i n g P a r t i c l e ( MI P )

SLIDE 17

Mi n i m u m I

n

i z i n g P a r t i c l e ( MI P ) : E M a n d H C a l s

EM Cal cell response H Cal cell response

MIP MIP GeV -> GeV ->

SLIDE 18

Mi n i m u m I

n

i z i n g P a r t i c l e ( MI P ) : Mu

n

C a l

SLIDE 19

Mi n i m u m I

n

i z i n g P a r t i c l e ( MI P )

Mi

n i m u m i

n

i z a t i

n

i s v e r y c l e a r i n a l l d e t e c t

r

s

Mu
n

c a l ' s MI P e n e r g y i s a b

u

t f i v e t i m e s t h a t

f

t h e

t

h e r c a l s

Mu
n

c a l c e l l s a r e 5 X b i g g e r b u t

t

h e r w i s e v e r y s i m i l a r t

H

c a l

H

c a l c e l l s a r e 2 X b i g g e r t h a n E M b u t E M h a s a p p r

x

i m a t e l y t w i c e t h e d e n s i t y

U

s e a r b i t r a r y v a l u e l e s s t h a n

n

e MI P f

r

e n e r g y c u t

f

f , 1 / 5 MI P f

r

p r e l i m i n a r y s t u d i e s .

SLIDE 20

E n e r g y C u t s : 1 / 5 MI P

Me a n e n e r g y r e s p

n

s e ( G e V ) R MS ( G e V ) R MS / s q r t ( E ) E l e c t r

n

s P i

n

s E l e c t r

n

s P i

n

s E l e c t r

n

s P i

n

s 1 n s 9 . 9 5 8 . 2 5 . 2 . 5 8 . 6 % 1 8 % 1 n s 9 . 9 5 7 . 7 6 . 3 . 7 2 1 % 2 3 . 7 % 1 n s 9 . 9 4 7 . 4 8 . 4 . 8 6 1 . 3 % 2 7 % Me a n e n e r g y r e s p

n

s e ( G e V ) R MS ( G e V ) R M S / s q r t ( E ) E l e c t r

n

s P i

n

s E l e c t r

n

s P i

n

s E l e c t r

n

s P i

n

s 1 n s 9 . 5 2 7 . 5 . 5 9 . 7 5 1 . 9 % 2 4 % 1 n s 9 . 5 1 3 6 . 8 5 . 6 4 . 8 2 2 . % 2 6 % 1 n s 9 . 5 1 6 . 7 4 . 6 7 . 8 8 2 . 1 % 2 7 . 8 %

B e f

r

e C u t s : A f t e r C u t s :

SLIDE 21

E n e r g y C u t s : 1 / 5 MI P

P

i

n

r e s p

n

s e i s d r a s t i c a l l y c h a n g e d

E

s p e c i a l l y f

r

l

n

g e r t i m e w i n d

w

s

'

S p l a s h e s ' ?

Wi

l l t h i s b e l

s

t b y c l u s t e r i n g a n y w a y ?

L
k

a t c l u s t e r s f i r s t , t h e n c

m

b i n e w i t h e n e r g y c u t s

SLIDE 22

C l u s t e r i n g

Mu

s t r e m

v

e h i t s t h a t c a n ' t b e t r a c e d t

p

a r t i c l e

C

a n t e s t d i f f e r e n t a l g

r

i t h m s ,

F

i x e d

c
n

e c l u s t e r i n g

N

e a r e s t n e i g h b

r

c l u s t e r i n g

F

i x e d

c
n

e :

C

l u s t e r s

f

h i t s t h a t f i t w i t h i n c

n

e

N

e a r e s t n e i g h b

r

:

C

l u s t e r s h i t s a d j a c e n t w i t h i n x n u m b e r

f

c e l l s

SLIDE 23

C l u s t e r i n g : F i x e d

c
n

e

Me a n e n e r g y r e s p

n

s e ( G e V ) R MS ( G e V ) R MS / s q r t ( E ) E l e c t r

n

s P i

n

s E l e c t r

n

s P i

n

s E l e c t r

n

s P i

n

s 1 n s 9 . 9 5 8 . 2 5 . 2 . 5 8 . 6 % 1 8 % 1 n s 9 . 9 5 7 . 7 6 . 3 . 7 2 1 % 2 3 . 7 % 1 n s 9 . 9 4 7 . 4 8 . 4 . 8 6 1 . 3 % 2 7 % Me a n e n e r g y r e s p

n

s e ( G e V ) R MS ( G e V ) R M S / s q r t ( E ) E l e c t r

n

s P i

n

s E l e c t r

n

s P i

n

s E l e c t r

n

s P i

n

s 1 n s 9 . 5 4 7 . 9 . 8 3 . 7 7 1 2 . 6 % 2 4 . 4 % 1 n s 9 . 9 4 7 . 5 7 . 5 2 . 8 3 1 . 6 % 2 6 . 2 % 1 n s 9 . 9 3 7 . 3 4 . 8 7 . 9 1 2 . 8 % 2 8 . 8 %

B e f

r

e C u t s : A f t e r C u t s :

SLIDE 24

C l u s t e r i n g : N e a r e s t N e i g h b

r

Me a n e n e r g y r e s p

n

s e ( G e V ) R MS ( G e V ) R MS / s q r t ( E ) E l e c t r

n

s P i

n

s E l e c t r

n

s P i

n

s E l e c t r

n

s P i

n

s 1 n s 9 . 9 5 8 . 2 5 . 2 . 5 8 . 6 % 1 8 % 1 n s 9 . 9 5 7 . 7 6 . 3 . 7 2 1 % 2 3 . 7 % 1 n s 9 . 9 4 7 . 4 8 . 4 . 8 6 1 . 3 % 2 7 % Me a n e n e r g y r e s p

n

s e ( G e V ) R MS ( G e V ) R M S / s q r t ( E ) E l e c t r

n

s P i

n

s E l e c t r

n

s P i

n

s E l e c t r

n

s P i

n

s 1 n s 9 . 9 6 5 . 8 6 . 9 2 4 1 . 6 2 2 9 . 2 % 5 1 . 2 % 1 n s 9 . 9 5 5 . 7 1 . 9 2 4 1 . 6 2 2 9 . 2 % 5 1 . 2 % 1 n s 9 . 5 5 5 . 6 . 9 2 3 1 . 6 4 2 9 . 2 % 5 2 . 9 %

B e f

r

e C u t s : A f t e r C u t s :

SLIDE 25

SLIDE 26

SLIDE 27

T h

u

g h t s

F

i x e d

c
n

e c l u s t e r i n g p r

v

i d e s b e t t e r r e s

l

u t i

n

a c r

s

s t h e b

a

r d

N

e a r e s t

n

e i g h b

r

p a r a m e t e r s s h

u

l d c h a n g e

Wa

y s t

i

m p r

v

e e n e r g y r e s

l

u t i

n

:

C

h a n g e n e a r e s t

n

e i g h b

r

p a r a m e t e r s

C
m

b i n e n e a r e s t

n

e i g h b

r

c l u s t e r s t h a t f a l l w i t h i n f i x e d c

n

e

P

e r f

r

m n e a r e s t

n

e i g h b

r
n

f i x e d c

n

e c l u s t e r s

SLIDE 28

C l u s t e r i n g / t h r e s h

l

d : F i x e d

c
n

e

Me a n e n e r g y r e s p

n

s e ( G e V ) R MS ( G e V ) R MS / s q r t ( E ) E l e c t r

n

s P i

n

s E l e c t r

n

s P i

n

s E l e c t r

n

s P i

n

s 1 n s 9 . 5 4 7 . 9 . 8 3 . 7 7 2 . 6 % 2 4 . 4 % 1 n s 9 . 9 4 7 . 5 7 . 5 2 . 8 3 1 . 6 % 2 6 . 2 % 1 n s 9 . 9 3 7 . 3 4 . 8 7 . 9 1 2 . 8 % 2 8 . 8 % Me a n e n e r g y r e s p

n

s e ( G e V ) R MS ( G e V ) R M S / s q r t ( E ) E l e c t r

n

s P i

n

s E l e c t r

n

s P i

n

s E l e c t r

n

s P i

n

s 1 n s 9 . 9 5 7 . 9 . 5 3 . 7 7 2 . 6 % 2 4 . 4 % 1 n s 9 . 9 4 7 . 5 7 . 5 8 . 8 3 1 . 6 % 2 6 . 2 % 1 n s 9 . 9 3 7 . 3 4 . 6 1 . 9 1 2 . 8 % 2 8 . 8 %