FYI.
Heiko
---------- Forwarded message ----------
Date: Sat, 6 May 2006 22:57:26 -0700
From: Zoltan Ligeti <[log in to unmask]>
To: Francesca Di Lodovico <[log in to unmask]>
Cc: Heiko Lacker <[log in to unmask]>,
Michael Luke <[log in to unmask]>, Christian Bauer <[log in to unmask]>,
Concezio Bozzi <[log in to unmask]>
Subject: Re: BLL method for MX-q2 used in HFAG
Dear Francesca and Heiko,
> > > What values of the q2 and mX cuts are you interested in?
> >
> > Francesca and Concezio may correct me but I think it would make sense
> > to have the numbers in the next neighbourhood of mX<1.7 GeV & q^2>8
> > GeV^2 which were the default BABAR cuts so far.
>
> I agree. Also BELLE uses the same cuts, so we just need the same values
> for both experiments, as far as the HFAG average is concerned.
At the mX<1.7 GeV & q^2>8 GeV^2 point we find that a +-40MeV change in
mb(1S) gives a +-7% variation in G, while a +-100MeV change gives a +-18%
effect compared to our default values corresponding to mb(1S)=4.7GeV.
These numbers are cross checked with Christian.
Cheers, Zoltan
