Two-Orders-of-Magnitude Improvement in the Total Spin Angular Momentum of 131Xe Nuclei Using Spin Exchange Optical Pumping

We report on hyperpolarization of quadrupolar (I=3/2) 131Xe via spin-exchange optical pumping. Observations of the 131Xe polarization dynamics show that the effective alkali-metal/131Xe spin-exchange cross-sections are large enough to compete with 131Xe spin relaxation. 131Xe polarization up to 7.6...

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Bibliographic Details
Main Authors Molway, Michael J, Bales-Shaffer, Liana, Ranta, Kaili, Basler, Dustin, Murphy, Megan, Kidd, Bryce E, Gafar, Abdulbasit Tobi, Porter, Justin, Albin, Kierstyn, Goodson, Boyd M, Chekmenev, Eduard Y, Rosen, Matthew S, Snow, W. Michael, Ball, James, Sparling, Eleanor, Prince, Mia, Cocking, Daniel, Barlow, Michael J
Format Journal Article
LanguageEnglish
Published 07.05.2021
Subjects
Physics - Atomic Physics
Physics - Nuclear Experiment
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Summary:We report on hyperpolarization of quadrupolar (I=3/2) 131Xe via spin-exchange optical pumping. Observations of the 131Xe polarization dynamics show that the effective alkali-metal/131Xe spin-exchange cross-sections are large enough to compete with 131Xe spin relaxation. 131Xe polarization up to 7.6 p/m 1.5 percent was achieved in ca. 8.5EE20 spins--a ca. 100-fold improvement in the total spin angular momentum--enabling applications including measurement of spin-dependent neutron-131Xe s-wave scattering and sensitive searches for time-reversal violation in neutron-131Xe interactions beyond the Standard Model.
DOI:10.48550/arxiv.2105.03076