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			| question about tagging events [message #17221] | Fri, 29 August 2014 15:21  |  
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					|  Alexandros Messages: 51
 Registered: January 2014
 Location: KVI
 | continuous participant | From: *kvi-cart.rug.nl 
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	| Hi, 
 I have a rather stupid question.
 
 So, I am running some full simulations.
 I want to compare some parameters(lets say mom, x position, etc) from the mc truth tree with the same parameters from my analysis tree..
 The thing is that I want to compare these parameters for the same event number.
 For example:
 I simulate 10000 events and I get 6000 D0 in my analysis..
 Is it possible to compare the parameters mentioned above for the same 6000 events both from my analysis and the mc truth??
 I mean is there a tag somewhere so that the numbers I get are from the same event for both mc truth and analysis??
 I hope you understood my question.
 
 Thanks a lot
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