[G8b_run] g8b meeting

[Michael Dugger]

Phil,

You should not state:
"Danny uses a different method than Patrick.  He requires all that there 
be a proton, pi+ and pi- in the final state.  The pi0 is reconstructed
through missing mass and then the invariant mass of the three pions are
reconstructed."

For one, Patrick's analysis also requires the exact same signature (p, 
pi+, pi-, and missing mass consistent with pi0). Also, you should not 
state "..the invariant mass of the three pions are reconstructed." When 
you state the reconstruction of the three pions, it is implied that you 
have four vectors for each particle separately determined, where in fact, 
the pi0 four-vector Danny creates is found by using all of the 
four-vectors from all of the other detected particles.

Take care,
Michael


On Tue, 14 Jun 2011, Philip L. Cole wrote:

>
> All,
>
> I am sorry that I did not see the message until this morning, but Danny
> and I will be traveling on Monday, June 20 to JLab and will not be able to
> participate in the g8b meeting as currently scheduled.
>
> Danny will be presenting on his work on extracting the Photon Asymmetry
> Parameter at the CLAS collaboration and we were hoping to go over the talk
> before the meeting.  Is it possible for the meeting to be shifted to
> Friday and if not, can we send the talk to all of you?  And then solicit
> your comments.  I have shown the preliminary results to Franz.
>
> Danny uses a different method than Patrick.  He requires all that there be
> a proton, pi+ and pi- in the final state.  The pi0 is reconstructed
> through missing mass and then the invariant mass of the three pions are
> reconstructed.  The Sigma is extracted for the omegas using the technique
> delineated in Daria's thesis.  The standard azimuthal-fitting method.  The
> extracted Sigmas agree well with Patrick's results.  The next step will be
> to extract the SDMEs.
>
> We will have the talk ready by Wednesday evening.
>
> Thanks for your patience.  I just did not look at my JLab e-mail yesterday.
>
> Phil
>
>> Hi All,
>> As you know I didn't want to have another meeting until there was
>> something useful to say about beam polarization - or some other progress.
>> I hope the new polarization tables will be ready within the next couple
>> of days, with docmentation to follow immediately.
>>
>> Can we please have a meeting before the CLAS meeting. The thursday slot
>> is now taken up by FROST. I've initiated a doodle poll.
>> I cannot do any later than 5-6PM UK time, and I know the ASU folks don't
>> want to get up at 4.00AM, so we're fairly restricted.
>>
>> Can you please fill up your availability.
>>
>> http://doodle.com/y7s3nyp85fdys7ai
>>
>>
>> Cheers,
>> Ken
>>
>> --
>> =======================================================
>> Ken Livingston
>>
>> Dept. of Physics&  Astronomy,        Tel: +44 141 330 6428
>> University of Glasgow,               Fax: +44 141 330 5889
>> Glasgow G12 8QQ.
>> Scotland. UK.
>> =======================================================
>>
>> _______________________________________________
>> G8b_run mailing list
>> G8b_run at jlab.org
>> https://mailman.jlab.org/mailman/listinfo/g8b_run
>>
>
>
> --
>   Philip L. Cole
>   Associate Professor
>   Idaho State University
>   Department of Physics
>   Pocatello, Idaho 83209
>   (208) 282-5799  office
>            -4649  fax
>    cole at athena.physics.isu.edu
>    http://www.physics.isu.edu/staff/cole.html
>
>
>
> _______________________________________________
> G8b_run mailing list
> G8b_run at jlab.org
> https://mailman.jlab.org/mailman/listinfo/g8b_run
>