[Halld-alpha] [EXTERNAL] Re: Slides for meeting tomorrow

[Derek Glazier]

Hi Peter,
  Slide 5, Advantage of  lower energies, "double statistics with 3 weeks of running" , Not clear what it is doubling from. Also the plot with result projections does not correspond to the lower energy results, are you planning to update this ?
  On the toy slides I would make clear what the generated value of alpha was.
  The statement about the reduced linear polarisation bias is not really made from these toys. The proposal extraction is within 1 sigma of the generated value, while the new value is just over, all be it with much reduced statistical uncertainty. This really needs fits with free linear polarisation. I think the main conclusion of the exercise is the sensitivity to alpha is greatly increased with the lower energy amplitudes.
Cheers
Derek


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________________________________
From: Halld-alpha <halld-alpha-bounces at jlab.org> on behalf of Peter Pauli <ppauli at jlab.org>
Sent: 02 December 2024 14:22
To: halld-alpha at jlab.org <halld-alpha at jlab.org>
Subject: [Halld-alpha] Slides for meeting tomorrow

Hi all,

As we discussed in our last meeting there will be a special Physics WG meeting tomorrow to focus on proposals for low energy running.

I produced a few preliminary studies to show how helpful it can be to our measurement. The short answer: it looks like it could be extremely helpful.

Attached are the slides I intend to show tomorrow. There will be some changes as I am still running more fits in different configurations but the main takeaway will not change much.
I will also add a little bit more text to the result slides to make them easier to understand for people who cannot attend but will look at slides later on. That being said I wanted to send these out to you before I show them and there is not much time left until the meeting. So here is the current state...

Let me know if you want me to make any changes.

Cheers,
Peter





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