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The document presents new constraints on the local-type primordial non-Gaussianity parameter, fNL, using cross-correlations between the cosmic infrared background (CIB) and Planck cosmic microwave background (CMB) lensing maps. The analysis employs newly developed dust-cleaned CIB maps, achieving a constraint of fNL = 43 ± 23, which improves the precision of previous analyses by a factor of approximately 2. The results are validated through consistency and null tests, demonstrating robustness against modeli

Author

bob

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EN