Re: request to critical colleague

[Tim Gorringe <gorringe@pa.uky.edu>]

Hi Peter,
I checked the Lambda_S in Fig 2 of the RMP paper (from
Harold's calculation). Its gives 692s-1 for ga=1.2670 and
would give 695s-1 for ga=1.2695. Very close to the 691s-1
in the spreadsheet. On the corrections for ppm and op with
values of lambda_ppm = 2.3e6s-1 and lambda_op =8.0e4s-1
(scaling the former by density) I get by quick calc about
95.1% singlets, 4.8% ortho's and 0.8% para's. Volodya
had studied exactly how these numbers changs the
effective electron dissappearance rate - I'll check with him.
I think leaving RMC alone is appropriate (we've no
reason to assum the correction is also 3% and I'm sure its
negligible on the scale of the errors). I think shifting OMC
by 3% is reasonable - did Marciano say anything about
the singlet/triplet/ortho/para dependece of such radiative
corrections?
Cheers, Tim.



Peter Kammel wrote:
> That would be great. I will be in the car by then, but
> will check my email in Nashville tonight.
>
> There are 2 main tasks:
>
>   - check our L_S spreadsheet again and derive g_P including
>     the new Marciano correction.
>
>   - I have left RMC alone on the figure and shifted the Saclay
>     region up by 1 in g_P. A 3% increase in the theory value
>     corresponds to delta g_P=1 in the experimental extraction.
>
> Is that correct?
>
> Thanks
>
> Peter
>
>
>
>
> On Wed, 25 Oct 2006, Tim Gorringe wrote:
>
>> Hi Peter,
>> I can check the number the afternoon. I apologize I've
>> been very busy with our dept. review and haveen't had
>> much time for other things over the past week.
>> Tim.
>>
>> Peter Kammel wrote:
>>> Dear Tim,
>>>
>>> Could you be so kind to check my g_P update. You are the expert
>>> and probably the only one to figure out mistakes in the
>>> short time.
>>>
>>> Thanks
>>>
>>> Peter
>>>
>>> Peter Kammel  /  pkammel@uiuc.edu
>>> Department of Physics, Loomis Laboratory
>>> University of Illinois at Urbana-Champaign
>>> 1110 West Green Street, Urbana, IL 61801
>>> Tel (217) 333-5424 / Fax (217) 333-1215
>>>
>>>
>>> ---------- Forwarded message ----------
>>> Date: Mon, 23 Oct 2006 23:53:41 -0500 (CDT)
>>> From: Peter Kammel <kammel@zero.npl.uiuc.edu>
>>> To: analysis -- Tom Banks <tbanks@socrates.Berkeley.EDU>,
>>>     Steve Clayton <smclayto@uiuc.edu>, Tim Gorringe 
>>> <gorringe@pa.uky.edu>,
>>>     Fred Gray <Frederick.Gray@pomona.edu>, David Hertzog 
>>> <hertzog@uiuc.edu>,
>>>     Malte Hildebrandt <malte.hildebrandt@psi.ch>,
>>>     Brendan Kiburg <kiburg@zero.npl.uiuc.edu>, Sara Knaack 
>>> <sknaack@uiuc.edu>,
>>>     Berhard Lauss <lauss@ill.fr>, Marat Vznuzdaev 
>>> <marat@mail.pnpi.spb.ru>,
>>>     Levchenko Mikhail <mishelev@pnpi.spb.ru>,
>>>     Francoise Mulhauser <Francoise.Mulhauser@psi.ch>,
>>>     Claude Petitjean <Claude.Petitjean@psi.ch>,
>>>     R. Prieels <prieels@fynu.ucl.ac.be>,
>>>     Vladimir Tishchenko <tishenko@pa.uky.edu>,
>>>     Peter Winter <peter.winter@psi.ch>, Penny Sigler <psigler@uiuc.edu>
>>> Subject: regular telconf  217-265-9888
>>>
>>> Dear colleagues,
>>>
>>> During tomorrow's telconf we should walk through the draft of my APS
>>> talk. It is posted on
>>>
>>> http://www.npl.uiuc.edu/exp/mucapture/coll/unblind/unblind.html
>>> right after my unblinding summary.
>>>
>>> Please read it in advance.
>>>
>>> Tim, could you join to critically discuss my g_P update?
>>> Claude, Steve and Tom, please also check.
>>> My root script to update g_P etc is
>>> http://www.npl.uiuc.edu/exp/mucapture/coll/unblind/dnp2006.cpp
>>>
>>> Other reports include Brendan, Tom and Steve's work and studies.
>>>
>>> Best regards
>>>
>>> Peter
>>>
>>>
>>>
>>>
>>>> Peter,
>>>> I have made a teleconference reservation starting on Tuesday, 
>>>> September
>>>> 12 and every Tuesday thereafter ending and including Tuesday, December
>>>> 19 from 11:30am-1pm CST on:
>>>>
>>>> 217-265-9888
>>>
>>>
>>> Peter Kammel  /  pkammel@uiuc.edu
>>> Department of Physics, Loomis Laboratory
>>> University of Illinois at Urbana-Champaign
>>> 1110 West Green Street, Urbana, IL 61801
>>> Tel (217) 333-5424 / Fax (217) 333-1215
>>>
>>>
>>
>
> Peter Kammel  /  pkammel@uiuc.edu
> Department of Physics, Loomis Laboratory
> University of Illinois at Urbana-Champaign
> 1110 West Green Street, Urbana, IL 61801
> Tel (217) 333-5424 / Fax (217) 333-1215