[Primexd] PrimEx-eta abstract for Hadron 2021

[Igal Jaegle]

Thank you, Liping. The corrected abstract can be found here: https://halldweb.jlab.org/DocDB/0051/005152/003/Hadron2021.pdf

tks ig.
________________________________
From: Gan, Liping <ganl at uncw.edu>
Sent: Monday, June 7, 2021 12:41 AM
To: gasparan at jlab.org <gasparan at jlab.org>; Igal Jaegle <ijaegle at jlab.org>
Cc: primexd at jlab.org <primexd at jlab.org>; Sean Dobbs <seandobbs at gmail.com>
Subject: [EXTERNAL] Re: [Primexd] PrimEx-eta abstract for Hadron 2021

Hi, Igal,

My suggestions are as below. Please note, we should say the PrimEx-eta experiment, not the GlueX experiment.


The PrimEx-eta experiment at Jefferson Lab is aiming to measure the radiative decay width of the η-meson with a 3.2% precision.  This projected accuracy will ameliorate the calculation of all η-meson partial decay widths. It will provide a critical input to determine the η-η′ mixing angle and the light quark mass ratio model-independently. The first run was performed in Hall D in 2019 and the second run will be carried out in fall 2021. We will discuss the status of experiment and how the radiative decay width is extracted via the Primakoff effect from the η-meson photoproduction off a Helium nucleus.  We will also discuss the measurement of Compton scattering off an atomic electron,  which  is used to control experimental systematics, including the detection efficiency, the luminosity, and the measurement stability overtime.


Cheers,

Liping



________________________________
From: Primexd <primexd-bounces at jlab.org> on behalf of gasparan at jlab.org <gasparan at jlab.org>
Sent: Sunday, June 6, 2021 9:22 PM
To: Igal Jaegle <ijaegle at jlab.org>
Cc: primexd at jlab.org <primexd at jlab.org>; Sean Dobbs <seandobbs at gmail.com>
Subject: Re: [Primexd] PrimEx-eta abstract for Hadron 2021

[This email originated from outside of UNCW]

  Hi Igal,

 It is a very good abstract for this experiment.
 Two comments: In the title and in the text, when we say
 "Radiative decay" that is already by definition assumes eta->gg decay
 width, so, there is no need to state it twice.
 Also, in one place there is "experimental measurement", it is redandant.

 Good luck,
 Ashot


> All, you can find my abstract at this link:
> https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fhalldweb.jlab.org%2Fdoc-private%2FDocDB%2FShowDocument%3Fdocid%3D5152&data=04%7C01%7Cganl%40uncw.edu%7Cbb3df20fdaa94f3b69a108d92952b1b6%7C2213678197534c75af2868a078871ebf%7C1%7C0%7C637586257411419241%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=Sx4qeq5aFZonO7Udch8EGI%2B%2BgEAZ035SmJFi%2Ff172Zw%3D&reserved=0<https://urldefense.proofpoint.com/v2/url?u=https-3A__nam12.safelinks.protection.outlook.com_-3Furl-3Dhttps-253A-252F-252Fhalldweb.jlab.org-252Fdoc-2Dprivate-252FDocDB-252FShowDocument-253Fdocid-253D5152-26amp-3Bdata-3D04-257C01-257Cganl-2540uncw.edu-257Cbb3df20fdaa94f3b69a108d92952b1b6-257C2213678197534c75af2868a078871ebf-257C1-257C0-257C637586257411419241-257CUnknown-257CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0-253D-257C1000-26amp-3Bsdata-3DSx4qeq5aFZonO7Udch8EGI-252B-252BgEAZ035SmJFi-252Ff172Zw-253D-26amp-3Breserved-3D0&d=DwMFJg&c=CJqEzB1piLOyyvZjb8YUQw&r=09G0_vNCJcXuzy4NWhn5xA&m=Yh5GjY9q1Ehsg_RxRpgtxWZSKMmSIsj0EuFHOikCO98&s=v85llQTWCUDtcgp164hsuZjO_pHdKLgMQCpgbpOFDAg&e=>
>
> Your corrections/comments/remarks are welcome. The deadline for the
> abstract submission is this Monday.
>
> tks ig.
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