1. Java Analysis Studio and the hep.lcd classes
Tony Johnson
FNAL - LCD workshop - February 1999

2. Java Analysis Studio Experiment independent Physics Analysis Tool
JAS Presentation at FNAL on Wednesday (no time now)
Is being used by several people for LCD analysis
hep.lcd classes make this possible (subject of this talk]

3. What is hep.lcd ? hep.lcd a Java framework for
Analysis of LCD data from
Stdhep, Gismo, Root FASTMC
Development of
Reconstruction (Clustering and Track Finding)
Analysis algorithms
Fast Parameterized FASTMC
Event Display, Analysis Tools (Jet Finder etc.]
Can be used inside JAS or standalone

4. What is hep.lcd
Why Java?
More appropriate language than C++ for data analysis
Easy to learn
Simpler to use
Designed as interpretive language
Fast
Huge industry support
Runs on all machines of interest to hep

5. How does it interface to Gismo?
ROOT
FastMC
StdHEP
GISMO
Ascii file
Detector
Description
hep.lcd classes
Fast MC
Recon
Analysis
Event
Display

6. What’s New Since December
Handles new detector geometry files
Event Display improved
Jet Finding added to Event Shape utilities
Bug fixes and improvements
New Tutorial + User’s Guide on Web

7. Users Guide + Tutorial Based on December’s hands-on tutorial
Covers all components of hep.lcd package
Doesn’t assume any previous experience with Java or Java Analysis Studio
Constantly Evolving Document (80% complete)
User Feedback Encouraged
Every page has a feedback form which sends to maintainer
You can see comments of others plus replies

8. What’s Next Document FASTMC
Merge in updated track finding/fitting package
Release version 1.0

9. Conclusion Hep.lcd + JAS = Events are being generated, but:
easy way to get started doing LCD analysis
Events are being generated, but:
Little time has so far been spent looking at data
Even if you don’t have much time please look at data:
Does output data make sense?
Does it contain what you will need for your analysis?
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