[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Rough simulation plans...




 Hello Everyone,

Here are a few notes about simulations. I'd appreciate
input from people about what work (and when) they are 
doing. Any comments on the outline will be appreciated.


Thanks,
// Randy MacLeod

*****************************************************************************
Rough - Rough - Rough - Rough - Rough - Rough - Rough - Rough - Rough 
*****************************************************************************

Hall-D Simulations requirements for the August 2000 Design Report.


Deadlines:
==========
August 2000: Next version of the CDR.
?Mid   2001: Full design report?


What simulation questions do we need answered by August?
  
What simulation questions do we need answered to write a full Design Report?


Overview of Simulation Goals:
=============================

- Signals
  - physics/detector optimization 
  - vary resolutions of subsystems to see how it affects the PWA.

- Backgrounds - rates and spatial distributions, 
  - from collimators
  - from EM in [empty] target.
  - X-rays into drift chambers?
  - cosmics?

Detectors: Study and Optimization:
==================================

  - Beam - U Conn & JLab
    - Geant MC of EM from target.
    - Geant MC of collimators.

  - Start counter - FIU
    - Geant MC needed? Does FIU have a person to do the work?

  - Tracking - CMU
    - MCFast MC.
    - Drift Cell Size
    - Chamber geometry
    - Role of dE/dx.

  - Barrel Calorimetry - Norfolk/Regina
    - Geant 3 simulations - Elliott Wolin has some code to start from.

  - Particle ID - RPI
    - What is needed?

  - Forward Calorimetry - IU
    - What is needed?


Short term work proposal:

Task:				Who:				Priority
========================================================================

Subsystem optimization		each group.			     1

Background and collimation	Elliott Wolin & Randy MacLeod	     1

Updated full detector MCFast	Paul Eugenio and others		     1
(cables, support, etc)

Make E852 Shower lib		Paul Eugenio or Randy MacLeod	     2
  work with MCFast.

Event format			Everyone			     2


*****************************************************************************

In parallel to the work listed above, we need to start thinking about the
longer term development needs.

Complete Detector Performance:
==============================

  Goal: Simulate (an hour/day/week/month of) data and analyze it.

  Work Required:

  - Event Generator
    - known resonances
    - non-q-qbar states.
    - backgrounds

  - Full MC  - G3/4
    - Physical Geometry
      - Detector with housing
      - Suport structures
      - Cables
    - Read-out Geometry.
      - 
      - Digitization accuracy
      - FADC algorithms.
  - Trigger and DAQ
    - Using the MC, determine Efficiency vs Energy.
    - we can cut out the low energy events (2/3 of the events), prove it! 


  - Data Analysis software