[clas12_rgk] [EXTERNAL] URGENT: beam energy for the next RG-K run

[Bill Briscoe]

Hi all,

I agree with the general flow and considerations as stated in the previous
messages. I think that we should also see if additional time as suggested
by FX is forthcoming.

BB


William J. Briscoe, Professor Emeritus
Department of Physics
The George Washington University
Director, GW Institute for Nuclear Studies (GWINS)
Director, Data Analysis Center (DAC)
202-994-6788 (Foggy Bottom Campus)
571-553-8340 (Virginia Science and Technology Campus)


On Mon, Apr 18, 2022 at 11:06 AM Ralf Gothe <rwgothe at gmail.com> wrote:

> Dear Annalisa,
>
> I indeed also agree with Volker's suggestions to split the beam time
> between 6.6 and 8.8 GeV 25/25 days respectively, and keep the outbending
> configuration with the FT-OFF. We should try to keep changes of the running
> conditions we had by now as minimal as possible.
>
> I would suggest to consider one (or a half) day of the 50 days to run with
> FT on at maximum data acquisition rate. This would allow us to evaluate the
> true performance at very low Q^2 for future requests.
>
> Best wishes,
>
> Ralf
>
>
>
> Ralf W. Gothe
> Department of Physics and Astronomy
> University of South Carolina
> Columbia, SC 29208
>
> Phone: 803 777 9025
> Fax: 803 777 3065
>
>
> On Mon, Apr 18, 2022 at 10:47 AM Latifa Elouadrhiri <latifa at jlab.org>
> wrote:
>
>> Dear All,
>>
>> You have my opinion - I will not be able to attend the meeting this
>> afternoon.
>>
>> Best regards,
>>
>> Latifa
>> ------------------------------
>> *From:* clas12_rgk <clas12_rgk-bounces at jlab.org> on behalf of
>> Francois-Xavier Girod <fxgirod at jlab.org>
>> *Sent:* Monday, April 18, 2022 10:39 AM
>> *To:* Annalisa D'Angelo <annalisa.dangelo at roma2.infn.it>
>> *Cc:* clas12_rgk at jlab.org <clas12_rgk at jlab.org>
>> *Subject:* Re: [clas12_rgk] [EXTERNAL] URGENT: beam energy for the next
>> RG-K run
>>
>> Dear all
>>
>> For the DVCS part I can state my agreement with Volker and Latifa's points
>> The FT off configuration, which allows higher luminosity, seems better
>> for our physics objectives of sensitivity to the real part of H
>>
>> Best regards
>> FX
>>
>> On Mon, Apr 18, 2022 at 8:43 AM Annalisa D'Angelo <
>> annalisa.dangelo at roma2.infn.it> wrote:
>>
>> Dear All,
>>
>> Stepan nedds an answer by tomorrow. Can we set up a meeting any time
>> between today and tomorrow?
>> Please use the following link to a doodle:
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__doodle.com_meeting_participate_id_b4xkxExb&d=DwIFaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=t2OnxVoP8YJyzuxpHKwj1tmrMj6s1mZ4pgV16sZJZb8&m=aifRjMsvjX89kaYwMovTCRBFClZ0o1O0wDIZf2e1hi3alm1rHJqNkjR0kC0IwEgH&s=CIqDtlf3xFS_jV9vmxhRwXZpaqNet3QFICbbhZ7oECg&e= 
>> <https://urldefense.proofpoint.com/v2/url?u=https-3A__doodle.com_meeting_participate_id_b4xkxExb&d=DwMDaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=t2OnxVoP8YJyzuxpHKwj1tmrMj6s1mZ4pgV16sZJZb8&m=UshaTj9Kh3pKWQ0kMew0Hx9xLWfcT8kZPrCiAS_5AMmp1fWRD9hUYfU9XZhg2vl_&s=U9KJx-Q3b4G91DV-X7ep29e0maoUE92Z4ux_K9EvQl8&e=>
>>
>> All the best
>> Annalisa
>> -------- Messaggio Inoltrato --------
>> Oggetto: Re: [EXTERNAL] Re: beam energy for the next RG-K run
>> Data: Sun, 17 Apr 2022 13:25:52 +0000
>> Mittente: Stepan Stepanyan <stepanya at jlab.org> <stepanya at jlab.org>
>> A: Annalisa D'Angelo <annalisa.dangelo at roma2.infn.it>
>> <annalisa.dangelo at roma2.infn.it>
>>
>> Dear Annalisa,
>>
>> Can this be done via email and get answers by Tuesday?
>>
>> Thanks, Stepan
>>
>> On Apr 17, 2022, at 3:10 AM, Annalisa D'Angelo
>> <annalisa.dangelo at roma2.infn.it> <annalisa.dangelo at roma2.infn.it> wrote:
>>
>> Dear Stepan,
>> I will put this item as the main one in next RG-K meeting agenda on
>> Wednesday. Would it be timely enough to answer before the end of the week?
>> Happy Easter!!
>> Annalisa
>> Prof.ssa Annalisa D'Angelo
>> Dip Fisica Università di Roma Tor Vergata e INFN Roma Tor Vergata
>> Jefferson Lab
>>
>>
>> Il giorno 16 apr 2022, alle ore 12:59, Stepan Stepanyan
>> <stepanya at jlab.org> <stepanya at jlab.org> ha scritto:
>>
>> Dear Annalisa,
>>
>> Another thing I want to know if RG-K will run with FT-ON or OFF or FT
>> removed.
>>
>> Thanks, Stepan
>>
>> On Apr 15, 2022, at 9:01 PM, Stepan Stepanyan <stepanya at jlab.org>
>> <stepanya at jlab.org> wrote:
>>
>> Dear Annalisa,
>>
>> We are planning for t next cycle of runs. There will be opportunity to
>> run RG-K again. I will need to know, ASAP, what beam energy you want to
>> run, 4 pass (~8.5 GeV) or 3-pass (6.4 GeV)?
>> Thanks, Stepan
>>
>>
>>
>>
>>
>>
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