[Sbs_software] [EXTERNAL] Re: [Sbs] GEn-II Analysis meeting at 10:00 AM EST

[Bogdan Wojtsekhowski]

In addition, the direction of the target polarization vs. position along the beam need to be taken into account.
________________________________
From: Sbs_software <sbs_software-bounces at jlab.org> on behalf of Donald Jones via Sbs_software <sbs_software at jlab.org>
Sent: Friday, March 1, 2024 1:04 PM
To: armd at jlab.org <armd at jlab.org>; Sean Jeffas <sj9ry at virginia.edu>
Cc: sbs_software at jlab.org <sbs_software at jlab.org>
Subject: Re: [Sbs_software] [EXTERNAL] Re: [Sbs] GEn-II Analysis meeting at 10:00 AM EST

Hi Sean,
Yes, it's important to make sure you get the polarization factors right. It is possible to have some corrections that are polarization dependent and others that are only helicity correlated. In the paper David cited, for example, the helicity-correlated corrections include asymmetries from beam position, angle and charge between helicity states which are not functions of polarization and thus require subtraction without the 1/P enhancement. It looks like all the backgrounds you are including are, in fact, polarization dependent and require the 1/P factor you show.
-Don

Donald Jones
Hall A/C Staff Scientist
Jefferson Lab
Newport News, VA
________________________________
From: Sbs_software <sbs_software-bounces at jlab.org> on behalf of Sean Jeffas via Sbs_software <sbs_software at jlab.org>
Sent: Friday, March 1, 2024 11:58 AM
To: armd at jlab.org <armd at jlab.org>
Cc: sbs_software at jlab.org <sbs_software at jlab.org>
Subject: [Sbs_software] [EXTERNAL] Re: [Sbs] GEn-II Analysis meeting at 10:00 AM EST

Hi David,

This is great, thank you! I repeated the calculation, with the result highlighted at the end. The only difference I find is the polarization factors come in differently, but I assume this is just a factor from the different experiments.

Going forward I would like to use this formalism, so if any GEN experts have any objections to it please let me know before I get too deep in.

Best,
Sean

On Thu, Feb 29, 2024 at 12:12 PM David Armstrong <armd at jlab.org<mailto:armd at jlab.org>> wrote:
Hi Sean, all,

  The more standard formalism is in Eq. (3) of
        https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.128.132501<https://urldefense.proofpoint.com/v2/url?u=https-3A__journals.aps.org_prl_abstract_10.1103_PhysRevLett.128.132501&d=DwMFaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=QlYVvSkd1eI3G8amPtrE_if6U-4zjeas0cAWa4BvYGo&m=_ntnW4g7gyZJq4xA-avfypqRtzO8e-auZEp21d3weJ-vPwIXW_Lhdg79Jf6FBnNE&s=Z3VEoGrSvQb0ST1OP3q2iBB3c-qHgxGlpKizCn9xa8s&e=>
    (preprint: https://arxiv.org/abs/2112.15412<https://urldefense.proofpoint.com/v2/url?u=https-3A__arxiv.org_abs_2112.15412&d=DwMFaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=QlYVvSkd1eI3G8amPtrE_if6U-4zjeas0cAWa4BvYGo&m=_ntnW4g7gyZJq4xA-avfypqRtzO8e-auZEp21d3weJ-vPwIXW_Lhdg79Jf6FBnNE&s=xBf35gGzCxpGc4yKh8NRKnBGySsvVVNdZe3_9DB_Dqc&e=>)

with excerpt attached (previous reply was too large to be sent to SBS mailing list).

  Hope this makes sense; I can chat with you if something is unclear.
   cheers,
     David



On 2/29/24 12:07 PM, David Armstrong wrote:
>
> Hi Sean,
>
>    The more standard formalism is in Eq. (3) of the attached paper, for
> example.
>
>   cheers,
>     David
>
>
>   On 2/29/24 11:39 AM, Sean Jeffas via Sbs_software wrote:
>> Hi All,
>>
>> There was some discussion today about the formalism in which the
>> asymmetry corrections are applied. See page 307 in Freddy's thesis for
>> how it was done for GEN-I,
>> https://inspirehep.net/files/03fe72dd8545c3b7f381a8f2fe4ed55d<https://urldefense.proofpoint.com/v2/url?u=https-3A__inspirehep.net_files_03fe72dd8545c3b7f381a8f2fe4ed55d&d=DwMFaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=QlYVvSkd1eI3G8amPtrE_if6U-4zjeas0cAWa4BvYGo&m=_ntnW4g7gyZJq4xA-avfypqRtzO8e-auZEp21d3weJ-vPwIXW_Lhdg79Jf6FBnNE&s=UVQvJMWyxco3-zKstD1FwWXIgtBIYjRKQBFT_vJTLf0&e=>
>> <https://urldefense.proofpoint.com/v2/url?u=https-3A__inspirehep.net_files_03fe72dd8545c3b7f381a8f2fe4ed55d&d=DwMFaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=QlYVvSkd1eI3G8amPtrE_if6U-4zjeas0cAWa4BvYGo&m=LZDdeeaHEbZ873ONztqhohDVNNC_N1yPLDAqOnzvvgGXsInpVNaltiPNbpEOhmbi&s=lbH8oUFRX7V2Z0EAUH-42tztmis3W-C7vyUY6m1tbFI&e=>
>>
>> I was following this formalism but it was brought up that there is a
>> more "standard" way. Could someone elaborate on this?
>>
>> Best,
>> Sean
>>
>> On Wed, Feb 28, 2024 at 8:26 PM Arun Tadepalli via Sbs <sbs at jlab.org<mailto:sbs at jlab.org>
>> <mailto:sbs at jlab.org<mailto:sbs at jlab.org>>> wrote:
>>
>>     Hello GEn-II Collaborators,
>>
>>
>>     Let’s make the best use of the leap year day and have our GEn-II
>>     analysis meeting on Thursday, 29th of February, at 10:00 am EST.
>>
>>
>>     Agenda:
>>
>>
>>     1. Moller Polarimetry Results -> Faraz Chahili
>>
>>     2. Asymmetry Corrections -> Sean Jeffas
>>
>>
>>     https://jlab-org.zoomgov.com/s/16077967861<https://urldefense.proofpoint.com/v2/url?u=https-3A__jlab-2Dorg.zoomgov.com_s_16077967861&d=DwMFaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=QlYVvSkd1eI3G8amPtrE_if6U-4zjeas0cAWa4BvYGo&m=_ntnW4g7gyZJq4xA-avfypqRtzO8e-auZEp21d3weJ-vPwIXW_Lhdg79Jf6FBnNE&s=RNVAunRcAKISaMrmk3N_-vLCpFvdoDFy6bbnkzFaLzU&e=>
>>
>> <https://urldefense.proofpoint.com/v2/url?u=https-3A__jlab-2Dorg.zoomgov.com_s_16077967861&d=DwMFaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=QlYVvSkd1eI3G8amPtrE_if6U-4zjeas0cAWa4BvYGo&m=LZDdeeaHEbZ873ONztqhohDVNNC_N1yPLDAqOnzvvgGXsInpVNaltiPNbpEOhmbi&s=laiyuAn7-ev3T-u5uIWRcJfU_3BR7Umdd4klY-ATsvQ&e=>
>>
>>
>>     The wiki page for this meeting can be found here:
>>
>>
>>
>> https://sbs.jlab.org/wiki/index.php/GEn_Analysis_Meeting_February_29_2024_10AM_EST <https://sbs.jlab.org/wiki/index.php/GEn_Analysis_Meeting_February_29_2024_10AM_EST>
>>
>>
>>     Best regards,
>>
>>
>>     Arun
>>
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>>
>>
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