mu o n c o l l i d e r d e t e c t o r s i m u l a t i o
play

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

Mu o n C o l l i d e r D e t e c t o r S i m u l a t i o n a n d C a l o r i m e t r y A l e x a n d e r C o n w a y A n a l y s i s o f m c d 0 0 , a n i d e a l


  1. Mu o n C o l l i d e r D e t e c t o r S i m u l a t i o n a n d C a l o r i m e t r y  A l e x a n d e r C o n w a y  A n a l y s i s o f m c d 0 0 , a n i d e a l d e p t h - s e g m e n t e d  m u o n c o l l i d e r d e t e c t o r m o d e l .

  2. Mu o n C o l l i d e r D e t e c t o r v . 0 . 0 ( m c d 0 0 ) N o r m a n G r a f

  3. C a l o r i m e t e r P r o p e r t i e s EM Hadron Muon NUM LAYERS 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 o n Z 7 4 - - - 2 6 D e n s i t y 1 9 . 3 7 . 8 7 7 . 8 5 { g / c m ^ 3 } C e l l s i z e 1 2 1 0 { c m ^ 3 } D e t e c t o r 1 0 8 0 3 0 0 D e p t h { c m } R a d i a t i o n 6 . 7 6 1 3 . 9 1 3 . 8 g / c m ^ 2 g / c m ^ 2 g / c m ^ 2 L e n g t h 0 . 3 5 c m 1 . 7 6 c m 1 . 7 6 c m N u c l e a r 1 8 5 1 3 2 . 1 1 3 1 . 9 g / c m ^ 2 g / c m ^ 2 g / c m ^ 2 I n t e r a c t i o n 9 . 5 8 c m 1 6 . 8 c m 1 6 . 8 c m L e n g t h Data from http://pdg.lbl.gov/2010/AtomicNuclearProperties *http://iopscience.iop.org/1748-0221/5/05/P05004/pdf/1748-0221_5_05_P05004.pdf

  4. B e a m ' s - e y e v i e w o f a s i n g l e 1 0 G e V p i o n e v e n t

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

  6. S t u d y i n g t h e D e t e c t o r ● S i m p l i s t i c m o d e l : ● S i n g l e p a r t i c l e e v e n t s ● N o n o i s e ● C a l o r i m e t e r p r o p e r t i e s : ● T o t a l a b s o r p t i o n ● H o m o g e n e o 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 o p e r t i e s

  7. S t u d y i n g t h e D e t e c t o r ● E n e r g y r e s o l u t i o n ● H o w m u c h c a n w e d e t e c t ? ● H o w m u c h d o 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 o n s t r a i n t s t o a d d ● T i m i n g c u t s ● E n e r g y d e p o s i t i o n t h r e s h o l d ● C l u s t e r i n g

  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 0 G e V e l e c t r o n s a n d p i o n s ● H o w f a s t d o s h o w e r s d e v e l o p ?

  9. E n e r g y R e s p o n s e w i t h v a r y i n g t i m e c u t o f f s f r o m 0 t o 1 0 0 0 n s electrons pions

  10. T i m e C u t o f f C o m p a r i s o n s R MS Me a n e n e r g y R MS / s q r t ( E ) ( G e V ) r e s p o n s e ( G e V ) E l e c t r o n s P i o n s E l e c t r o n s P i o n s E l e c t r o n s P i o n s 9 . 9 5 8 . 2 5 0 . 0 2 1 0 0 0 n s 0 . 5 8 0 . 6 % 1 8 % 9 . 9 5 7 . 7 6 1 0 0 n s 0 . 0 3 0 . 7 2 1 % 2 3 . 7 % 9 . 9 4 7 . 4 8 0 . 0 4 1 0 n s 0 . 8 6 1 . 3 % 2 7 %

  11. P i o n e n e r g y r e s p o n s e w i t h 1 0 0 n s a n d 1 0 0 0 n s c u t o f f s Mean (GeV) RMS (GeV) 1000ns 8.25 0.58 100ns 7.76 0.72 1000ns 100ns GeV

  12. T i m e C u t o f f C o m p a r i s o n s RMS for electrons and pions 2D Histogram of energy responses for pions

  13. T i m e C u t o f f C o m p a r i s o n s ● E l e c t r o 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 o w e r d e v e l o p m e n t a n d h i g h r e s o l u t i o n . ● P i o n s : ● S l o w e r s h o w e r d e v e l o p m e n t ● L o w e r e n e r g y r e s p o 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 o u s e o t h e r a s p e c t s o f t h e d e t e c t o r t o c h a r a c t e r i z e t h e s e a n d o 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 o n s e , s h o w e r s h a p e , t r a c k i n g , c h e r e n k o v , e t c

  14. Mi n i m u m I o 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 o n s a p p r o x i m a t e MI P s ● L i t t l e i n t e r a c t i o n w i t h d e t e c t o 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 o 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 o l d m u s t b e l o w e r t h a n MI P e n e r g y ● U s e m u o n s t o 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 o e a c h t y p e o f c a l o r i m e t e r

  15. Mi n i m u m I o n i z i n g P a r t i c l e ( MI P ) 1 0 G e V M u o n

  16. Mi n i m u m I o n i z i n g P a r t i c l e ( MI P )

  17. Mi n i m u m I o 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 ->

  18. Mi n i m u m I o n i z i n g P a r t i c l e ( MI P ) : Mu o n C a l

  19. Mi n i m u m I o n i z i n g P a r t i c l e ( MI P ) ● Mi n i m u m i o n i z a t i o n i s v e r y c l e a r i n a l l d e t e c t o r s ● Mu o n c a l ' s MI P e n e r g y i s a b o u t f i v e t i m e s t h a t o f t h e o t h e r c a l s ● Mu o n c a l c e l l s a r e 5 X b i g g e r b u t o t h e r w i s e v e r y s i m i l a r t o 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 o 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 o n e MI P f o r e n e r g y c u t o f f , 1 / 5 MI P f o r p r e l i m i n a r y s t u d i e s .

  20. E n e r g y C u t s : 1 / 5 MI P B e f o r e C u t s : R MS Me a n e n e r g y R MS / s q r t ( E ) ( G e V ) r e s p o n s e ( G e V ) E l e c t r o n s P i o n s E l e c t r o n s P i o n s E l e c t r o n s P i o n s 9 . 9 5 8 . 2 5 0 . 0 2 1 0 0 0 n s 0 . 5 8 0 . 6 % 1 8 % 9 . 9 5 7 . 7 6 1 0 0 n s 0 . 0 3 0 . 7 2 1 % 2 3 . 7 % 9 . 9 4 7 . 4 8 0 . 0 4 1 0 n s 0 . 8 6 1 . 3 % 2 7 % A f t e r C u t s : Me a n e n e r g y R MS R M S / s q r t ( E ) ( G e V ) r e s p o n s e ( G e V ) E l e c t r o n s P i o n s E l e c t r o n s P i o n s E l e c t r o n s P i o n s 9 . 5 2 0 7 . 0 5 0 . 0 5 9 1 0 0 0 n s 0 . 7 5 1 . 9 % 2 4 % 9 . 5 1 3 6 . 8 5 1 0 0 n s 0 . 0 6 4 0 . 8 2 2 . 0 % 2 6 % 9 . 5 1 0 6 . 7 4 0 . 0 6 7 1 0 n s 0 . 8 8 2 . 1 % 2 7 . 8 %

  21. E n e r g y C u t s : 1 / 5 MI P ● P i o n r e s p o 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 o r l o n g e r t i m e w i n d o w s ● ' S p l a s h e s ' ? ● Wi l l t h i s b e l o s t b y c l u s t e r i n g a n y w a y ? ● L o o k a t c l u s t e r s f i r s t , t h e n c o m b i n e w i t h e n e r g y c u t s

  22. C l u s t e r i n g ● Mu s t r e m o v e h i t s t h a t c a n ' t b e t r a c e d t o 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 o r i t h m s , ● F i x e d - c o 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 o r c l u s t e r i n g ● F i x e d - c o n e : ● C l u s t e r s o f h i t s t h a t f i t w i t h i n c o n e ● N e a r e s t n e i g h b o 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 o f c e l l s

Download Presentation
Download Policy: The content available on the website is offered to you 'AS IS' for your personal information and use only. It cannot be commercialized, licensed, or distributed on other websites without prior consent from the author. To download a presentation, simply click this link. If you encounter any difficulties during the download process, it's possible that the publisher has removed the file from their server.

Recommend


More recommend