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Zheng Cai

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Open access Sep 2026

A New Consistency Test for the ΛCDM Model Using Radial and Transverse Baryon Acoustic Oscillation Measurements

We present a calibration-free consistency test of spatially flat ΛCDM based on baryon acoustic oscillation (BAO) distance measurements. The method forms ratios of BAO distances including the Hubble distance, the comoving angular diameter distance, and the volume-averaged distance, so that the sound horizon scale cancel...

Xing-Han A. Zhao, Zheng Cai · 0 citations

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