Bulletin of the American Physical Society
APS April Meeting 2019
Volume 64, Number 3
Saturday–Tuesday, April 13–16, 2019; Denver, Colorado
Session L14: Fundamental Neutron Physics
3:30 PM–5:30 PM,
Sunday, April 14, 2019
Sheraton
Room: Plaza Court 3
Sponsoring
Unit:
DNP
Chair: Shannon Hoogerheide, National Institute of Standards and Technology
Abstract ID: BAPS.2019.APR.L14.10
Abstract: L14.00010 : Progress toward a new room temperature neutron electric dipole moment search at the Los Alamos Neutron Science Center
5:18 PM–5:30 PM
View Presentation
Abstract
Presenter:
Robert W Pattie
(East Tennessee State University)
Author:
Robert W Pattie
(East Tennessee State University)
Collaboration:
LANL nEDM Collaboration
A discovery of the neutron's permanent electric dipole moment larger than the standard model prediction of dn ≈ 10-31 e·cm would signal a new source of CP-violation and help explain the matter-antimatter asymmetry in the universe. Tightening the limits on dn constrain extensions to the standard model in a complementary fashion to the atomic and electron EDM searches. The recent upgrade of the Los Alamos ultracold neutron source makes it possible for a new room temperature search with the statistical reach to improve upon current limits by a factor of 10 or more. During the 2018 LANSCE cycle a prototype apparatus was used to demonstrate the capability to transport and manipulate polarized neutrons and perform Ramsey and Rabi sequence measurements. I will report on the measurements made over the last year, efforts underway to upgrade the prototype chamber, and possible future upgrades of the ultracold neutron source.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2019.APR.L14.10
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