Print

Print


Short corrcetion: Concezio just sent me an email saying
that he cannot on Thursday next week. So Let's meet on
Friday, 20th of January, next week.

Concezio & Roberto: please keep us informed already before
where you are standing and what kind of problems you are
encountering.

Cheers,
Heiko

On Fri, 13 Jan 2006, Heiko Lacker wrote:

> Hi,
> 
> as a follow-up Concezio, Francesca and myself had a discussion.
> Concezio will give a short status report on Monday in the AWG meeting.
> 
> Here is the tentative time schedule/working agenda:
> 
> 0. Content of the publication: We want to have results for
>    * mX-q^2
>    * mX
>    * P+
>    * difference in charged and neutral B's
> 
>    Concerning quoting the result we intend to show them for
>    * SF parameters obtained from b->s gamma + b->clnu moments
>    * SF parameters obtained from b->s gamma spectrum
>    * mX-q^2: results quoted for different regions that can be
>              used by B->Xsll
> 
>    * For HFAG purposes (not in paper): separate numbers for 
>      b->s gamma + b->clnu moments
> 
> 
> 1. Improve our mES fit procedure!
>    This might solve various open problems we have seen:
>    - problems in 1-bin unfolding
>    - instabilities in mm^2 scans
>    - unphysically large differences in B+ and B0 partial BF's
>    This is the bottle-neck of the analysis.
> 
>    Concezio and Roberto will keep in close contact and try to
>    settle this as fast as possible.
> 
>    We are proposing to meet next Thursday instead of Tuesday since Concezio 
>    is travelling next Tuesday. The same we want to do in the next-to-next 
>    week. If 8:45 for next two Thursday's imposes a problem please speak up!
>    Otherwise I will shift the phone conference reservations for the next
>    two weeks to Thursday.
> 
> 2. Once the m_ES fit procedure is settled which is hopefully the case on 
>    the time scale of 1-2 weeks we need to decide on the neutral & track 
>    selection. For this we need to redo the mm^2 scans. Roberto, what is 
>    your time estimate for doing this?
> 
> 3. Systematics
>    a) During 1. & 2. Wolfgang can improve on the PID systematics procedure.
>    b) Kerstin: Is it possible to use the code as it is we are using for 
>       re-weighting the multiplicity categories to apply it on the analysis? 
>       If so, we could reduce the hadronization uncertainty without too much 
>       code development. Otherwise we should stick to the more conservative
>       treatment.
>    c) Klong: Wolfgang, do you have any news from David?
>              If there is nothing avaiable very soon we have to stick to
>              the old recipe.
>    d) Running the systematics is expected to take about 1 week.
>       I assume this is shared at least by Roberto and Wolfgang.
>       What about the availability of Antonio?
>  
> 4. Documentation:
>    1) BAD: volunteer?
>    2) PRL draft: Heiko volunteering
> 
> 
> If there are additional inputs for Concezio please let him know in time.
> 
> 
> Cheers,
> Heiko
> 
> 
> On Tue, 10 Jan 2006, Heiko Lacker wrote:
> 
> > Hi,
> > 
> > here is the list of things to-be-done (modulo stuff I forgot,
> > so please correct me):
> > 
> > ---------------------------------------------------------------
> >   Task:                                 Person          Status
> > ---------------------------------------------------------------
> > * mES fits                              Roberto
> > 
> > * improve  systematics procedure:   
> >   - PID                                 Wolfgang
> >   - Klong                               Wolfgang
> >   - Hadronization: It would be nice to 
> >     reduce the 3% quoted if time allows. 
> >     Currently, we are conservative.
> > 
> > * Repeat systematics after final 
> >   track & neutral selection fixed:
> >   - Tracking eff.                         ?
> >   - Neutral Eff.                          ?
> >   - Neutral Corr.                         ?
> >   - K_L                                   ?
> >   - PID eff. and misID                    ?
> >   -------------------------------------------------------------
> >   - mES shape                             ?
> >   - mES parameters                        ?
> >   - eps-double-ratio                      ?
> >   -------------------------------------------------------------
> >   - SF parameters                         ?
> >   - SF form                               ?
> >   - Excl. b->ulnu                         ?
> >   - Hadronization                         ?
> >   - Gluon splitting                       ?
> >   -------------------------------------------------------------
> >   - B SL BF's                             ?
> >   - D BF's                                ?
> >   -------------------------------------------------------------
> > 
> > * writing supporting document             ?
> > 
> > * writing PRL draft                     Heiko
> > 
> > 
> > Cheers,
> > Heiko
> > 
>