Re: missing events from hdgeant

[Alexander Somov <somov@jlab.org>]

Hi Mark,

Events with zero hits in the detectors are
not written to hddm file. Your delta_theta = 180,
I asume that 10% is out of your acceptance.

Cheers,
        Sascha



On Tue, 10 Feb 2009, Mark M. Ito wrote:

> Folks,
>
> With the following particle gun config line:
>
> c   particle  momentum  theta  phi  delta_momentum delta_theta delta_phi
> KINE   108      2.0       90.  0.      3.0              180.        360.
>
> I am missing about 10% of the event numbers in the hdgeant output file, i. 
> e., I only get 1824 of the 2000 requested triggers, i. e., the first 10 
> events are:
>
> <physicsEvent eventNo="2" runNo="9999">
> <physicsEvent eventNo="3" runNo="9999">
> <physicsEvent eventNo="4" runNo="9999">
> <physicsEvent eventNo="5" runNo="9999">
> <physicsEvent eventNo="6" runNo="9999">
> <physicsEvent eventNo="7" runNo="9999">
> <physicsEvent eventNo="8" runNo="9999">
> <physicsEvent eventNo="9" runNo="9999">
> <physicsEvent eventNo="10" runNo="9999">
> <physicsEvent eventNo="11" runNo="9999">
>
> What happened to event #1?
>
> I remember something about a feature that explains this. How do I turn off 
> the feature? Is this documented somewhere? I would like to keep track of 
> statistics including events with no hits, etc.
>
> -- Mark
>
>