[Frost] NSTAR2013

[Volker Crede]

Igor and Eugene,

I am pretty sure that results from ELSA will be shown at the N* conference. At the GHP meeting, I will actually present latest CBELSA/TAPS results myself. Nevertheless, I think it is okay to call it "first-time measurements" here since nothing has been published for the "eta", yet. Although the GDH collaboration might have published some measurements for the E observable, but I am currently only aware of "pi0 pi0" results. 

Best wishes,

       Volker


On Jan 21, 2013, at 10:40 PM, Eugene Pasyuk wrote:

> Igor,
> 
> Abstract looks fine. 
> I have a couple of comments. 
> Add "tagged:" when you talk about photon beam.
> About "the first measurement". We know that CB-ELSA also measured polarization in eta photoproduction. It is still in the works and not published but they are heading to publication. It very well may be that they will also present their results at NSTAR. 
> May be Volker can comment on this?
> 
> -Eugene
> 
> ----- Original Message -----
>> From: "Igor Senderovich" <senderov at jlab.org>
>> To: "frost" <frost at jlab.org>
>> Sent: Sunday, January 20, 2013 11:06:55 AM
>> Subject: Re: [Frost] NSTAR2013
>> 
>> Hi Everyone,
>> 
>> I am circulating an abstract for your review that I will be
>> submitting to NSTAR and INPC (deadline: Jan 25th)
>> 
>> Title:
>> Determination of E and G observables using $\eta$ photo-production on
>> the CLAS Frozen Spin Target (FROST)
>> 
>> Abstract:
>> Polarization observables are vital for disentangling the overlapping
>> resonances in the baryon spectrum. Extensive data has been collected
>> at Jefferson Lab in Hall B with circularly and linearly polarized
>> photon beam incident on longitudinally polarized protons provided by
>> the Frozen Spin Target (FROST). The presentation will focus on
>> $\eta$ photo-production, which acts as an ``isospin filter'' by
>> restricting possible proton excitations for one step processes to be
>> isospin 1/2 resonances. Preliminary results for the
>> double-polarization observables E and G will be presented. These
>> will be the first such measurements for $\eta$ photo-production.
>> 
>> Thank you,
>> -Igor
>> 
>> 
>> ----- Original Message -----
>> From: "Eugene Pasyuk" <pasyuk at jlab.org>
>> To: "frost" <frost at jlab.org>
>> Sent: Wednesday, January 16, 2013 3:54:27 PM
>> Subject: [Frost] NSTAR2013
>> 
>> Folks,
>> 
>> I spoke with Volker about NSTAR meeting today. He encouraged people
>> to submit contributions to NSTAR2013 in Spain. If contribution is
>> accepted we can explore various sources to fund: ask organizers for
>> support, use JSA support for students and postdocs, and Hall B may
>> also help. Let's talk about it tomorrow. The deadline for
>> contributions is in two weeks.
>> 
>> -Eugene
>> 
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