GSI Forum: Particle Identification » Condition for tracks to hit FWD EMC

Home » PANDA » PandaRoot » Particle Identification » Condition for tracks to hit FWD EMC

Show: Today's Messages :: Polls :: Message Navigator

Condition for tracks to hit FWD EMC [message #19678]

Thu, 06 October 2016 15:58

pandachris
Messages: 1
Registered: August 2015

occasional visitor

From: *ikp.kfa-juelich.de

Dear all,

in the file PndPidEmcInfo.cxx, there is a condition saying

	if ((emcModule == 3) && (helix->GetZ() < 165.))
	continue; // consider tracks only from last gem plane for FWD

This basically ensures that tracks without a hit in the last GEM plane are not considered to constitute pidChargedCandidates.
However, even if tracks have only STT/MVD hits, they can still pass between the gap of GEM and EMC barrel and produce a cluster in the EMC forward detector. Therefore I would consider this condition redundant.

Is there any reason for this that I do not see or can it be removed?

Thanks and all best,
Chris

Report message to a moderator

Re: Condition for tracks to hit FWD EMC [message #19683 is a reply to message #19678]

Thu, 06 October 2016 16:03

StefanoSpataro
Messages: 2736
Registered: June 2005
Location: Torino

first-grade participant

From: *to.infn.it

Quote:

This basically ensures that tracks without a hit in the last GEM plane are not considered to constitute pidChargedCandidates.

This ensures that tracks without a hit in the last GEM plane are not correlated to the FWD EMC, saving a lot of CPU time. But the pidChargedCandidate is created.
Can you please evaluate (DPM?) how many tracks w/o hits in the last GEM plane are really hitting the FWD EMC?

Report message to a moderator

Previous Topic:	Forward TOF particle identification
Next Topic:	Error in PndAnaPidCombiner::Apply

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sun Dec 01 06:36:32 CET 2024

Total time taken to generate the page: 0.01102 seconds