Radio-frequency spectroscopy near a p-wave Feshbach resonance in one dimension

We study scattering of identical fermions confined in two orthogonal standing waves near a p-wave Feshbach resonance. By varying the lattice depth and magnetic field, we observe the confinement induced resonance shift and compare to recent parameterizations of this resonance. By performing fast radio-frequency (rf) spectroscopy, we measure the dependence of the rf spectrum on one-dimensional (1D) interaction strength. We relate the rf transfer rate through universal relations to the 1D p-wave contact, which is a measure of correlation strength in the gas. By amplitude modulating and frequency modulating the optical lattice, we test the influence of band population on the observed rf spectra.