DESI DR1 BAO data combined with Planck priors measure the phase shift amplitude beta_phi = 2.7^{+0.60}_{-0.67}, a 4.3 sigma detection of beta_phi > 0.
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Constraining the phase shift of relativistic species in DESI BAOs
DESI DR1 BAO data combined with Planck priors measure the phase shift amplitude beta_phi = 2.7^{+0.60}_{-0.67}, a 4.3 sigma detection of beta_phi > 0.