Bulletin of the American Physical Society
APS April Meeting 2019
Volume 64, Number 3
Saturday–Tuesday, April 13–16, 2019; Denver, Colorado
Session X15: Collider and BSM V
10:45 AM–12:09 PM,
Tuesday, April 16, 2019
Sheraton
Room: Plaza Court 4
Sponsoring
Unit:
DPF
Chair: Kate Whalen, CERN
Abstract: X15.00007 : New constraints on exotic spin- and velocity-dependent interactions of polarized electrons with an atomic magnetometer*
11:57 AM–12:09 PM
View Presentation Abstract
Presenter:
Young Jin Kim
(Los Alamos National Laboratory)
Authors:
Young Jin Kim
(Los Alamos National Laboratory)
Pinghan Chu
(Los Alamos National Laboratory)
Igor M Savukov
(Los Alamos National Laboratory)
Shaun Newman
(Los Alamos National Laboratory)
Many theoretical extensions of the Standard Model of particle physics predicted exotic spin-dependent interactions between fermions mediated by new fundamental spin-0 or spin-1 bosons such as the axion and axionlike particles. The new bosonic particles may explain several important unsolved mysteries in physics, e.g., matter-antimatter asymmetry and the existence of the dark matter. Recently, we conducted a search for exotic spin- and velocity-dependent interactions for polarized electrons. The experiment is based on a high-sensitivity atomic magnetometer containing an optically polarized atomic vapor, which serves as both a source of polarized electrons and a magnetic-field detector. This approach aims to detect magnetic-fieldlike effects from the exotic interactions between the polarized electrons in an atomic magnetometer vapor cell and unpolarized nucleons of a closely located solid-state mass. In this talk, we report new experimental constraints on the exotic interactions.
*We acknowledge the support of the U.S. Department of Energy through the LANL Laboratory Directed Research Development program for this work.
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