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Covariance Matrix for CbmHit [message #6041]

Wed, 12 March 2008 10:18

Tobias Stockmanns
Messages: 489
Registered: May 2007

first-grade participant

From: *ikp.kfa-juelich.de

Dear pandaRooters,

for the correct calculation of the covariance matrix of the riemann fit I need the covariances of the CbmHits. Therefore I would like to ask Mohammad to add a TMatrixD(3,3) to the CbmHit class and the tracking sub-detector experts to fill this matrix with the correct data.

Thanks,

Tobias

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Re: Covariance Matrix for CbmHit [message #6042 is a reply to message #6041]

Wed, 12 March 2008 10:28

Mohammad Al-Turany
Messages: 518
Registered: April 2004
Location: GSI, Germany

first-grade participant

From: *gsi.de

Hallo Tobias,

I think that the CbmHit should be kept as small as possible, otherwise the data volume in CBM will explode! So what about introducing a PndTrkHit analog to the cbmroot/cbmbase/CbmTrkHit class which can have this matrix and maybe other information like station number or what ever!

regards

Mohammad

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Re: Covariance Matrix for CbmHit [message #6044 is a reply to message #6042]

Wed, 12 March 2008 10:59

Tobias Stockmanns
Messages: 489
Registered: May 2007

first-grade participant

From: *ikp.kfa-juelich.de

Hi Mohammad,

for me a new class is fine. Then we just have to change the dependency of PndMvdHit from CbmHit to the new class.

Regards,

Tobias

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Re: Covariance Matrix for CbmHit [message #6047 is a reply to message #6041]

Wed, 12 March 2008 11:37

Tobias Stockmanns
Messages: 489
Registered: May 2007

first-grade participant

From: *ikp.kfa-juelich.de

We can save some space if we replace the TMatrixD with TMatrixTSym<double>

Cheers,

Tobias

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Re: Covariance Matrix for CbmHit [message #6048 is a reply to message #6047]

Wed, 12 March 2008 11:45

Mohammad Al-Turany
Messages: 518
Registered: April 2004
Location: GSI, Germany

first-grade participant

From: *gsi.de

Hi,

What about creating a pandabase subdirectory and move the mcstack contents to it, also this new class (PndHit?? as a subclass of CbmHit).

Mohammad

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