Re: Question on new dst

From: Claus O. E. Jorgensen <ekman@nbi.dk>
Date: Thu Nov 06 2003 - 11:42:56 EST
Hi Bjorn,

> I'm actually not responsible for this one(!) - the members were taken out
> of the "default" bdst at some point for reasons that I don't know. But if
> there is an interest in this kind of "basic" TPC data in the DSTs I can
> make sure they are there in the next generation.
>
> If noone else comments I'll just put it back in, but maybe someone has
> other opinions?

I think we should only put in what's needed in the further analysis. I
know that each branch does not take up very much space, but still... I
guess that nclusters and maybe nallhits could be of interest when
calculating the efficiency (what's the difference between these members),
but I would skip the rest. I believe stuff like ntracks is stored
somewhere else.

Cheers,

Claus


> > Hi Bjorn,
> >
> > I try to analyze the dst's you generated and find that some data
> > members from the AuAu analysis are not there anymore. E.g.
> >   ...
> >   Int_t           TPM1RDO_fNallHits;
> >   Int_t           TPM1RDO_fNtrack;
> >   Int_t           TPM1RDO_fNsingleHit;
> >   Int_t           TPM1RDO_fNsingleHitDec;
> >   Int_t           TPM1RDO_fNmultHitDec;
> >   UInt_t          TPM2RDO_BrDataObject_fUniqueID;
> >   UInt_t          TPM2RDO_BrDataObject_fBits;
> >   UChar_t         TPM2RDO_BrDataObject_fIsPersistent;
> >   Char_t          TPM2RDO_BrDataObject_fName[64];
> >   Char_t          TPM2RDO_BrDataObject_fTitle[64];
> >   Int_t           TPM2RDO_fNclusters;
> >   Int_t           TPM2RDO_fCStatus;
> >   ...
> >
> >
> > Could you explain the reason why these members are not considered
> > necessary for the dAu analysis? And for sake of backward compatibility
> > wouldn't it be better to have them included, even though they would be
> > dummy variables for dAu?
> >
> > Best regards,
> > Zhongbao
>
>
> --
> Bjorn H. Samset                           Phone: 22856465/92051998
> PhD student, heavy ion physics            Adr:   Schouterrassen 6
> Inst. of Physics, University of Oslo             0573 Oslo
>                               \|/
> ----------------------------> -*- <-----------------------------
>                               /|\
>
Received on Thu Nov 6 11:43:32 2003

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