A cross-correlation of DESI luminous red galaxies with Planck CMB lensing yields f_NL = 39 +40/-38 (and 24 +20/-21 combined with the galaxy autocorrelation), consistent with zero at about one sigma.
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Constraints on primordial non-Gaussianity from the cross-correlation of DESI Luminous Red Galaxies and $Planck$ CMB lensing
A cross-correlation of DESI luminous red galaxies with Planck CMB lensing yields f_NL = 39 +40/-38 (and 24 +20/-21 combined with the galaxy autocorrelation), consistent with zero at about one sigma.