{"paper":{"title":"Alcock-Paczynski Blinding Scheme for the Ly-$\\alpha$ Forest Analysis","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. Cuceu, A. de la Macorra, A. Font-Ribera, A. Kremin, A. Lambert, A. X. Gonzalez-Morales, B. A. Weaver, B. Dey, D. Bianchi, D. Brooks, D. Huterer, D. Schlegel, D. Sprayberry, E. F. Schlafly, E. Gazta\\~naga, E. Sanchez, F. Prada, G. Gutierrez, G. Niz, G. Perez-Sanchez, G. Rossi, G. Tarl\\'e, H. K. Herrera-Alcantar, I. P\\'erez-R\\`afols, J. Aguilar, J. E. Forero-Romero, J. Silber, K. Honscheid, L. Le Guillou, L. Verde, M. Ishak, M. Landriau, M. Manera, M. Schubnell, N. Palanque-Delabrouille, O. Lahav, P. Doel, P. Martini, R. Joyce, R. Miquel, S. Ahlen, S. Brieden, S. F. Beltran, S. Ferraro, S. Gontcho A Gontcho, S. Nadathur, T. Claybaugh, W. J. Percival","submitted_at":"2026-07-08T19:18:54Z","abstract_excerpt":"We present and validate a blinding method for the Lyman-$\\alpha$ (Ly$\\alpha$) forest analysis based on a modification of the Alcock-Paczynski test. In order to hide the background expansion history, the method employs a geometrical shift of each quasar (QSO) forest in wavelength space, once the quasar continuum has been fitted and the fluctuation field is extracted. The redshift positions for the QSO sample are also changed in a consistent manner. We show that the method remains effective when applied to real data, where contamination from metals and Lyman-$\\beta$ is intrinsically mixed with t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.07875","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2607.07875/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}