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Hi Ed,

which PDG are you using to check the values in ddecay.table?
I know this is not exactly the answer to your question, but we have been
using the ddecay.table in VirVubFitter. This should have the PDG2003
values in it, Ric updated this last March. And I am not aware of any more
recent update.

Cheers,
Kerstin


On Fri, 7 Jan 2005, Edward Hill wrote:

>
> After checking - I'm going to commit changes to VubAnalysis b/c
> RecoilAnalysis' version of recoilDSys is the properly maintained one - so i'm
> just copying it over.
>
> However, it looks like the ddecay.table file from VubAnalysis has the correct
> BR values from PDG and the version in RecoilAnalysis doesn't.  Can another
> pair of eyes quickly double check this assertation - i'd like to know whether
> i'm taking crazy pills or not.
>
> Cheers,
> Ed
>
>
> On Friday 07 January 2005 10:44 am, Edward Hill allegedly wrote:
> > So, it seems pretty clear that the RecoilAnalysis version is the
> > well-maintained version.  I can't even recall doing a migration or in which
> > direction i migrated it.  I assume from VubAna->RecoilAna for the
> > introduction of the recoil analysis base class.
> > I'll go through the 2 and bring each up to speed with the other.
> >
> > Ed
> >
> > On Friday 07 January 2005 10:31 am, Kerstin Tackmann allegedly wrote:
> > > Hi all,
> > >
> > > I made some changes to recoilDSys in RecoilAnalysis last February, but I
> > > did not touch the recoilDSys in VubAnalysis.
> > > I posted a short description of the changes is posted here:
> > > http://babar-hn.slac.stanford.edu:5090/HyperNews/get/semi_lept_decays/4.h
> > >tm l
> > >
> > > But since it refers to the AWG meeting before the posting, it might be a
> > > little unclear. I made three types of changes to the code:
> > >
> > > 1) I changed the weights that were used for the B->Xclnu BFs according to
> > > the values of the AWG-reweighting page. Since the uncertainties there
> > > were asymmetric I implemented an asymmetric Gaussian in the Brandomize
> > > function for the variation of the BFs.
> > >
> > > 2) I had problems with how the random numbers were thrown, since it used
> > > the time to set the seed and when jobs would start too shortly after
> > > another they would give me the same results (which is obviously not what
> > > we want). So I changed it so you could pass a number that determined how
> > > the seed got set (in pratice it throws random numbers for 10*the number
> > > you pass it and uses the random numbers it throws after throwing these
> > > 10*x away, and accordingly for the D weights). So you would call
> > > VirVubFitter with -Sys i, i=3...52 or so and were sure to get different
> > > random numbers thrown per job (and I made checks the distributions of the
> > > weights looks ok doing it this way and to not have some strange
> > > behavior).
> > >
> > > 3) This is for the unfolding, so we could write out the weights into
> > > files and read them in later again when running in our binning.
> > >
> > > This version was tagged KT022304. I do not know if Concezio's changes
> > > were made after this.
> > >
> > > Kerstin
> > >
> > > On Fri, 7 Jan 2005, Concezio Bozzi wrote:
> > > > Hi all,
> > > > in VirVubFitter we have been using RecoilAnalysis/recoilDSys, but we
> > > > also did (more than 1 year ago) detailed checks with
> > > > VubAnalysis/recoilDSys, which I believe gave consistent results.
> > > > At the moment we cannot check the details in our logbooks (both
> > > > Virginia and I are not in Ferrara), we'll do that on Monday.
> > > > Ciao, Concezio.
> > > >
> > > > Daniele del Re wrote:
> > > > >>yes,  in  principle  you  are right.   However,
> > > > >> VubAnalysis/fitNtp.cc includes the  other version (the one  in
> > > > >> VubAnalysis). So  it would be nice to  have THE person  to know
> > > > >> sign off with  a better CL  than "I presume". Are the differences
> > > > >> between the two versions understood?
> > > > >
> > > > >VirVubFitter results were consistent with the fitNtp ones (right
> > > > >Virginia) and fitNtp is not used since ages.
> > > > >
> > > > >This is what I know. I am noticing that the VubAnalysis version was
> > > > > the result of the migration done by Ed. Probably Ed himself knows if
> > > > > there was an original large difference between the two. After the
> > > > > first commit there have been just two versions with fixes by Kerstin
> > > > > and Concezio.
> > > > >
> > > > > Daniele
>
>