Enhanced Tensor Polarization in Solid-State Targets

Abstract

We report measurements of enhanced tensor polarization on solid-state targets. The results here represent an increase in tensor polarization over that previously achieved in high energy and nuclear scattering experiments that focused on the measurement of tensor polarized observables. Enhancement techniques are used which require RF produced close to the Larmor frequency of the target spins and use selective semi-saturation resulting from two sources of irradiation, microwave for the DNP process and the additional RF used to manipulate the population of the energy levels in the target material. The spin dynamics of the solid target are used to align the spins enhancing the ensemble average to improve the figure of merit of the scattering experiment. Target rotation at an optimized rate can lead to additional enhancement by applying selective semi-saturation in polycrystalline materials that possess a Pake doublet in their NMR signal.

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Cited by in corpus (11)

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• Semi-inclusive deep inelastic scattering off a tensor-polarized spin-1 target
• Tensor-polarized twist-3 parton distribution functions $f_{LT}(x)$ for the spin-1 deuteron by using twist-2 relations
• Novel relations for twist-3 tensor-polarized fragmentation functions in spin-1 hadrons
• Twist-2 relation and sum rule for tensor-polarized parton distribution functions of spin-1 hadrons
• Polarized Target Nuclear Magnetic Resonance Measurements with Deep Neural Networks
• Twist-3 contribution in the Drell-Yan process with tensor-polarized deuteron
• Adiabatic Fast Passage Spin Manipulation Measurements in Solid Polarized Targets
• Twist-2 relations for the twist-3 tensor-polarized distribution function $f_{LT}$ of a spin-1 hadron by the operator-product-expansion method