[Clas_hadron] [EXTERNAL] Re: Abstract for DNP

[Bill Briscoe]

Looks good to me

On Wed, Jun 26, 2024, 14:17 Izzy Illari <izzy at jlab.org> wrote:

> Dear RG-K Group and HSWG Members,
>
> I hope this email finds you well. I'm writing to follow up on my previous
> communication regarding the abstract submission for the DNP.
>
> Following feedback and adhering to the APS DNP guidelines, I have revised
> the abstract to meet the 1300 character limit. Please find the updated
> abstract below:
>
> The exploration of nucleon structure and electromagnetic transitions from
> ground state to excited state is a cornerstone of nuclear physics research.
> Meson electro-production experiments have opened new avenues for
> investigating these phenomena, particularly in the 12 GeV era at Jefferson
> Lab with the CLAS12 spectrometer. The ηN final states, accessible only via
> isospin I = 1/2 resonances, provide a unique tool for studying nucleon
> excitations. By simplifying the analysis and enabling a cleaner extraction
> of resonance properties compared to the extensively studied πN final
> states, η electro-production offers a complementary approach. This work
> presents the first-ever measurement of the beam spin asymmetry (ALU) in
> exclusive η electroproduction, covering a previously unexplored kinematic
> region with 1.6 ≤ W ≤ 2.2 GeV. ALU is determined from the CLAS12 data using
> an analysis framework that considers the statistical limitations of the
> data set. Results are compared to theoretical models Jülich-Bonn-Washington
> and EtaMAID. ALU exhibits discrepancies with model predictions,
> highlighting the potential for refining theoretical descriptions of nucleon
> resonances and their electromagnetic couplings. These new results in a
> previously unmeasured kinematic region provide valuable input for future
> theoretical developments.
>
> Thank you for your time and input. I appreciate any additional feedback or
> suggestions you may have on this revised version.
>
> All the best,
> Izzy
> On Jun 25, 2024, at 7:04 PM, Bill Briscoe <briscoe at gwu.edu> wrote:
>>
>> An abstract submitted via the APS meeting page will cut off if the
>> abstract is too long. This is too long. Please do a test run without
>> submitting the abstract and prune it down.
>>
>> Bb
>>
>> On Tue, Jun 25, 2024, 19:00 Izzy Illari <iti2103 at gwmail.gwu.edu> wrote:
>>
>>> Dear RG-K Group and HSWG Members,
>>>
>>> I hope this email finds you well.
>>>
>>> I have been encouraged by RG-K group to submit an abstract for the
>>> upcoming DNP October 7-10. The abstract is identical to the one I presented
>>> at the PWA/ATHOS conference in May, which has already been previously
>>> circulated to the HSWG.
>>>
>>> For your convenience, I have copied the abstract again down below. The
>>> abstract submission deadline is 8 July 2024.
>>>
>>> I would appreciate any feedback or suggestions you may have regarding
>>> the abstract.
>>>
>>> Thank you and all the best,
>>> Izzy
>>>
>>> Exclusive $\eta$ Electro-Production Beam Spin Asymmetry Measurements
>>> using CLAS12 at Jefferson Lab
>>>
>>> The exploration of nucleon structure and electromagnetic transitions
>>> from ground state to excited state is a cornerstone of nuclear physics
>>> research. Meson electro-production experiments have opened new avenues for
>>> investigating these phenomena, particularly in the 12 GeV era at Jefferson
>>> Lab with the CLAS12 spectrometer. The $\eta N$ final states, accessible
>>> only through isospin $I = 1/2$ resonances, provide a unique tool for
>>> studying nucleon excitations. By simplifying the analysis and enabling a
>>> cleaner extraction of resonance properties compared to the extensively
>>> studied $\pi N$ final states, $\eta$ electro-production offers a
>>> complementary approach to unraveling the structure of excited nucleons.
>>> This work presents the first-ever measurement of the beam spin asymmetry
>>> (BSA) in exclusive $\eta$ electro-production, covering a previously
>>> unexplored kinematic region with $1.6 \leq W \leq 2.2$ GeV. The BSA is
>>> extracted from the CLAS12 data using a comprehensive analysis framework
>>> that carefully considers the statistical limitations of the data set. The
>>> results are compared to predictions from theoretical models, such as the
>>> J"{u}lich-Bonn-Washington (JBW) and MAID, as well as compared to previously
>>> published cross-section and spin observable results from CLAS, and SLAC.
>>> Notably, the extracted BSA exhibits discrepancies with the model
>>> predictions, highlighting the potential for refining theoretical
>>> descriptions of nucleon resonances and their electromagnetic couplings
>>> through the incorporation of these new data. The high-precision data
>>> obtained in this previously unmeasured kinematic region now serve as
>>> valuable input for theorists to refine their models.
>>>
>>> --
>>> Izzy Illari
>>> Pronouns: They/Them
>>>
>>> M.Phil. in Physics | The George Washington University, 2022
>>> Graduate Certificate in Data Science | The George Washington University,
>>> 2021
>>> M.S. in Physics | The George Washington University, 2020
>>> B.A. in Physics | Barnard College, Columbia University, 2017
>>>
>>> GWU: iti2103 at gwmail.gwu.edu | JLab: izzy at jlab.org
>>>
>>
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