[Frost] Material for deuteron runs

[Christopher D. Keith]

We have already purchased several grams of d-butanol.

We have received a quote for the 'Finland' variant of the trityl radical. 
This is the proper one to use with butanol.  I expect a requisition will
go out today.

Chris Keith



>
> What material do we have for the deutero runs?
>
> ----- Original Message -----
> From: Igor Strakovsky <igor at va.gwu.edu>
> Date: Tuesday, May 25, 2010 12:53 am
> Subject: Re: [Frost] Two cents worth
> To: Michael Dugger <dugger at jlab.org>, Bill Briscoe <briscoe at gwu.edu>
> Cc: frost at jlab.org
>
>> Mike, it would be great if you can do that
>>
>> See you tomorrow, sorry today, Igor
>>
>> On Tue, 25 May 2010 00:04:11 -0400 (EDT), Michael Dugger
>> <dugger at jlab.org>
>> wrote:
>>
>> >
>> > Yes: gamma n -> pi- p. Thanks for catching that :)
>> >
>> > I think the best way to deal with this is to take this as an
>> extension of
>> > g9b. This means that the extension would be calibrated with the g9b
>> data.
>> > I don't think there is enough manpower to treat the extension as a
>> > separate running period with separate cooks and calibrations.
>> >
>> > If we were to cook and calibrate the data as g9b data, I would like
>> to
>> > analyze the gamma n -> pi- p reaction. I am in good position to do
>> this.
>> >
>> > Any disagreements?
>> >
>> > -Michael
>> >
>> > On Mon, 24 May 2010, Bill Briscoe wrote:
>> >
>> >> Hi Mike,
>> >>
>> >> I believe you mean gamma n -> pi- p. Yes, I believe that this is a
>> unique
>> >>opportunity that should not be lost. We should look for the best
>> physics to
>> >>get out of this in a short time. I agree with Barry that we should
>> not hunt
>> >>for peaks, but look where we are sure to see something. This might
>> lead to
>> >>the allocation of more time if that is possible.
>> >>
>> >> Bill
>> >>
>> >> ----- Original Message -----
>> >> From: Michael Dugger <dugger at jlab.org>
>> >> Date: Monday, May 24, 2010 11:07 pm
>> >> Subject: [Frost] Two cents worth
>> >> To: frost at jlab.org
>> >>
>> >>> Somewhat obvious stuff:
>> >>> * Running FROST with a deuteron target for three weeks without
>> having
>> >>> to
>> >>> go through the PAC is a unique opportunity.
>> >>> * There is only enough time to run at one coherent edge energy.
>> >>> * We have to figure out the best possible physics motivation to
>> >>> determine
>> >>> the edge energy to run at.
>> >>> * At the lower energies we are almost guaranteed of getting a usable
>> >>> signal for gamma p -> pi- p.
>> >>>
>> >>> An issue we need to address: Who is going to analyze the data? There
>> >>> is a
>> >>> real possibility that the person who does pi- p will be the only one
>> >>> to
>> >>> get any usable physics. Is that enough motivation for the effort of
>> >>> all
>> >>> involved?
>> >>>
>> >>> -Michael
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______________________________________________________________________
Christopher D. Keith
Jefferson Lab, MS 12H                        email: ckeith at jlab.org
12000 Jefferson Ave.                         ph: 757-269-5878
Newport News VA 23606                        fax: 757-269-5235
______________________________________________________________________