[Prex] [EXTERNAL] DNP CREX Presentation Tuesday 10/12

[Caryn Palatchi]

 2021 Fall Meeting of the APS Division of Nuclear Physics Monday–Thursday,
October 11–14, 2021; Virtual; Eastern Daylight Time
Session EA: New Precision Results in Hadronic Physics with Electroweak
Probes <https://urldefense.proofpoint.com/v2/url?u=https-3A__meetings.aps.org_Meeting_DNP21_Session_EA&d=DwIFaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=50WEB9Oj6zN_Pm7FQRUTIQ&m=5-IhyQ4EwCgvn2eLURS01tUMahIpvlBdPSksiRUp6TU&s=JbdpbvBJJl1OcCasWvKoAELaNr6zWSFn7oi2WZ9Os5s&e= >

11:45 AM–1:33 PM, Tuesday, October 12, 2021
Room: Ballroom B

Chair: Cynthia Keppel, Jefferson Lab
Abstract: EA.00003 : CREX: Precision Measurement of the Neutral Weak Form
Factor in Elastic Electron-48Ca Scattering*

12:57 PM–1:33 PM

    <https://urldefense.proofpoint.com/v2/url?u=https-3A__meetings.aps.org_Meeting_DNP21_Session_EA.2&d=DwIFaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=50WEB9Oj6zN_Pm7FQRUTIQ&m=5-IhyQ4EwCgvn2eLURS01tUMahIpvlBdPSksiRUp6TU&s=1fOecX1PxzcCDA0HI_0cfFdCrF6YUBqhvI0-YzZT4cg&e= > Abstract
Presenter:

Caryn Palatchi
(University of Virginia)
Author:

Caryn Palatchi
(University of Virginia)

Collaboration:

The CREX Collaboration
A measurement of the neutron skin of the modestly sized, neutron rich 48Ca
nucleus can provide an important benchmark for nuclear theory. The RMS
radius of the neutron distribution in the nucleus is measured via the
parity violating asymmetry in longitudinally polarized elastic
electron-nucleus scattering. While the electroweak nature of this parity
violating interaction lends itself to cleanly interpretable results it also
presents considerable experimental challenges. The CREX collaboration
successfully completed data collection in 2020 at Jefferson Lab employing
the CEBAF accelerator. Precise measurement of the neutron skin of 48Ca
provides unique experimental input to help bridge ab-initio theoretical
approaches and the nuclear density functional theory. Analysis of the
experimental result and our understanding of its impact regarding nuclear
structure will be presented.

*We acknowledge the support of the U.S. Department of Energy Office of
Science, Office of Nuclear Physics, the National Science Foundation and
NSERC (Canada).
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