1. How To Get Started in Analysis with Atlas software FAQ on How to Get account at BNL http://www.acf.bnl.gov/UserInfo/GettingStarted/ http://www.acf.bnl.gov/UserInfo/GettingStarted/Ne wUser/ FAX The filled form to BNL, They should contact you in couple of days and provide you your account details over email Once you have the account one can vist the following URL and get started with the tutorial https://twiki.cern.ch/twiki/bin/view/Atlas/USATLASA nalysisTutorial1105

2. What is after Getting an account  First download the program called puttygen and generate a key and upload the key in the BNL server Following this Link https://www.rcf.bnl.gov/Auth/External/SshKeys/Uploa dSshKey.php https://www.rcf.bnl.gov/Auth/External/SshKeys/Uploa dSshKey.php  Before you can acess this URL to upload your public Key you need BNL account  So bottom line Follow the Instructions and First get your BNL account.  Download also pegeant and add your generated key once you login to your computer and this should allow you login to BNL COMPUTING Facility with PUTTY

3. How to Run Analysis Programs  All atlas analysis is offline Follow this link http://atlas-sw.cern.ch/cgi-bin/viewcvs- atlas.cgi/offline/PhysicsAnalysis/#dirlisthttp://atlas-sw.cern.ch/cgi-bin/viewcvs- atlas.cgi/offline/PhysicsAnalysis/#dirlist Once you have successfully completed the wiki page for Athena 11.0.5 Release You can take a look at the Directory structure offline at the following link /PhysicsAnalysis/AnalysisCommon/UserAnalysis/U serAnalysis Under This Directory../src Directory contains all the codes For example z->ee Decay.

4. Conclusion  Once These steps are done we can go over some susy related Analysis.  I will provide some root Files so that one can take a look at various Histograms in Root.