TY - GEN T1 - Model-Independent Test of Prerecombination New Physics: Measuring the Sound Horizon with Gravitational Wave Standard Sirens and the Baryon Acoustic Oscillation Angular Scale T2 - arXiv PY - 2025/08/15 AU - Giarè W AU - Betts J AU - van de Bruck C AU - Di Valentino E ED - DO - DOI: 10.48550/arxiv.2406.07493 Y2 - 2026/01/11 ER -