[Halld-offline] [Fwd: Re: bggen thrown particle type]

[Alexander Somov]

Hi,

Might also be useful: if you use tracks relations between DMCThrown
and DMCTrackHit, you have to skip tracks in the DMCThrown with
type = 0 (geant id = 0).

Cheers,
        Alex




>Date: Mon, 27 Jul 2009 19:54:34 -0600
>From: Blake Leverington <leverinb at uregina.ca>
>To: Eugene Chudakov <gen at jlab.org>
>Cc: Alexander Somov <somov at jlab.org>
>Subject: Re: bggen thrown particle type

> Ok, I was unsure how HDGeant handled the events that weren't final state. 
>I was trying to figure out what my background was and all these extra 
>events were confusing me.

>-Blake

>Eugene Chudakov wrote:
>> The bggen writes out everything, since it might be
>> useful to be able to check the event structure later. The reading
>> routine in HDGeant should be smart and store into GEANT only the entries
>> with a non-zero code. I thought it had been done this way, but
>> I am not sure. Alex Somov or David may know. Alex used the bggen
>> output with HDGeant.
>>
>> Eugene
>>