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VUB-RECOIL  June 2007

VUB-RECOIL June 2007

Subject:

Re: R: R: new weights

From:

Francesca Di Lodovico <[log in to unmask]>

Date:

16 Jun 2007 01:21:18 -0700 (PDT)Sat, 16 Jun 2007 01:21:18 -0700 (PDT)

Content-Type:

MULTIPART/MIXED

Parts/Attachments:

Parts/Attachments

TEXT/PLAIN (115 lines)

Ciao Concezio,

the errors are on the web page:

  http://www.slac.stanford.edu/~lodovico/protected/vub/weights/hybrid.html

(see bottom table), except for the pi(0), where the error is from PDG2007 
(HFAG update):

pilnu  1.36 +/- 0.06 +/- 0.07
pi0lnu 0.77 +/- 0.10 +/- 0.07

Cheers,
 		Francesca

------------------------------------------------------------------------
|  Francesca Di Lodovico              Queen Mary, University of London |
|  E-mail:[log in to unmask]  Physics Department               |
|  Phone:  +44-(0)20-7882-5035        Mile End Road                    |
|  Fax:    +44-(0)20-8981-9465        London E1 4NS, UK                |
------------------------------------------------------------------------



On Thu, 14 Jun 2007, Bozzi, Concezio wrote:

> Hi Francesca,
> which are the errors on the exclusive BFs you are using?
> Thanks, Concezio.
>
>
> -----Messaggio originale-----
> Da: Francesca Di Lodovico [mailto:[log in to unmask]]
> Inviato: lun 11/06/2007 11.39
> A: Bozzi, Concezio
> Cc: vub-recoil
> Oggetto: Re: R: new weights
>
> Ciao Concezio, the motivation for those choices for the BFs can be found
> on the last table in:
> http://www.slac.stanford.edu/~lodovico/protected/vub/weights/hybrid.html
> with respect to which only the pi/pi0lnu BFs have been updated to the
> PDG07 (HFAG averages).
> The central values for mb and a comes from hep-ex/0507253 (Oliver's and
> Henning's paper), see the first line below the first table.
> I will update the web page with the new weights once ready.
>
> I thought this was the decision we reached at the meeting last week, if
> not, could you please let me know what should I change?
> Thanks,
> 		Francesca
>
> ------------------------------------------------------------------------
> |  Francesca Di Lodovico              Queen Mary, University of London |
> |  E-mail:[log in to unmask]  Physics Department               |
> |  Phone:  +44-(0)20-7882-5035        Mile End Road                    |
> |  Fax:    +44-(0)20-8981-9465        London E1 4NS, UK                |
> ------------------------------------------------------------------------
>
>
>
> On Mon, 11 Jun 2007, Concezio Bozzi wrote:
>
>> Hi Francesca,
>> thanks. There are also some (minor) differences in the exclusive BF with
>> respect to what we were using so far, e.g. the rho BFs. I guess this is
>> because the numbers were taken directly from the SP8 generation values.
>>
>> We took from SP8 also the values for the inclusive BFs - 0.001892 for
>> B+->Xulnu, 0.001948 for B0->Xulnu - which you updated to 0.002304 and
>> 0.002220 respectively.
>>
>> Another difference regards m_b (4.62 -> 4.6586) and a(2.27 -> 1.32669).
>> Could you clarify this?
>>
>> Thanks, ciao, Concezio.
>>
>>> -----Messaggio originale-----
>>> Da: [log in to unmask] [mailto:owner-vub-
>>> [log in to unmask]] Per conto di Francesca Di Lodovico
>>> Inviato: luned 11 giugno 2007 10.17
>>> A: [log in to unmask]
>>> Oggetto: new weights
>>>
>>> Hi, the file with the new weights (for the main configuration) can be
>>> found in:
>>> http://www.slac.stanford.edu/%7Elodovico/protected/vub/weights/weightsB/ne
>>> w_weightfile_ellipse1_w1_exp_B.txt
>>>
>>> The only difference with respect to before is in the pi(0)lnu final
>>> state. The BF's correspond to the PDG 07 value (ie based on all the
>>> published measurements). The other BF's are the same then before, as there
>>> isn't any new published measurement since then.
>>>
>>> During this week, I will produce the weight files also for the
>>> configurations related to the systematics.
>>>
>>> Cheers,
>>>  		Francesca
>>>
>>> ------------------------------------------------------------------------
>>> |  Francesca Di Lodovico              Queen Mary, University of London |
>>> |  E-mail:[log in to unmask]  Physics Department               |
>>> |  Phone:  +44-(0)20-7882-5035        Mile End Road                    |
>>> |  Fax:    +44-(0)20-8981-9465        London E1 4NS, UK                |
>>> ------------------------------------------------------------------------
>>>
>>
>>
>>
>>
>
>
>

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