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Hauptverfasser:	Sanchez-Cid, D., Ferté, A., Blazek, J., Samuroff, S., Amon, A., Andrade-Oliveira, F., Coloma-Nadal, J. M., Muir, J., Porredon, A., Prat, J., Weaverdyck, N., Yamamoto, M., Anbajagane, D., Becker, M. R., Carrilho, P., Chang, C., Crocce, M., Giannini, G., d'Assignies, W., DeRose, J., Dodelson, S., Krause, E., Legnani, E., Mena-Fernández, J., MacCrann, N., Pourtsidou, A., Preston, C., Rogozenski, P., Rodriguez-Monroy, M., Rosenfeld, R., Sanchez, E., Sevilla-Noarbe, I., Soares-Santos, M., To, C., Troxel, M. A., Tsedrik, M., Yin, B., Zuntz, J., Abbott, T. M. C., Aguena, M., Allam, S., Alves, O., Avila, S., Bacon, D., Bechtol, K., Bertin, E., Bocquet, S., Brooks, D., Camacho, H., Camilleri, R., Campos, A., Rosell, A. Carnero, Carretero, J., Castander, F. J., Cawthon, R., Choi, A., da Costa, L. N., Pereira, M. E. da Silva, Davis, T. M., De Vicente, J., Desai, S., Doux, C., Drlica-Wagner, A., Eifler, T., Elvin-Poole, J., Everett, S., Evrard, A. E., Flaugher, B., Fosalba, P., Frieman, J., García-Bellido, J., Gatti, M., Gaztanaga, E., Giles, P., Glazebrook, K., Gruen, D., Gutierrez, G., Harrison, I., Herner, K., Hinton, S. R., Hollowood, D. L., Honscheid, K., Huterer, D., Jain, B., James, D. J., Jeffrey, N., Kacprzak, T., Kuehn, K., Lahav, O., Lee, S., Marshall, J. L., Menanteau, F., Miquel, R., Mohr, J. J., Myles, J., Nichol, R. C., Ogando, R. L. C., Palmese, A., Paterno, M., Percival, W. J., Malagón, A. A. Plazas, Raveri, M., Roodman, A., Sánchez, C., Schutt, T., Sheldon, E., Sherman, N., Shin, T., Smith, M., Suchyta, E., Swanson, M. E. C., Tabbutt, M., Tarle, G., Thomas, D., Tucker, D. L., Vikram, V., Walker, A. R., Yanny, B.
Format:	Preprint
Veröffentlicht:	2026
Schlagworte:	Cosmology and Nongalactic Astrophysics
Online-Zugang:	https://arxiv.org/abs/2601.14859
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

_version_	1866908779653627904
author	Sanchez-Cid, D. Ferté, A. Blazek, J. Samuroff, S. Amon, A. Andrade-Oliveira, F. Coloma-Nadal, J. M. Muir, J. Porredon, A. Prat, J. Weaverdyck, N. Yamamoto, M. Anbajagane, D. Becker, M. R. Carrilho, P. Chang, C. Crocce, M. Giannini, G. d'Assignies, W. DeRose, J. Dodelson, S. Krause, E. Legnani, E. Mena-Fernández, J. MacCrann, N. Pourtsidou, A. Preston, C. Rogozenski, P. Rodriguez-Monroy, M. Rosenfeld, R. Sanchez, E. Sevilla-Noarbe, I. Soares-Santos, M. To, C. Troxel, M. A. Tsedrik, M. Yin, B. Zuntz, J. Abbott, T. M. C. Aguena, M. Allam, S. Alves, O. Avila, S. Bacon, D. Bechtol, K. Bertin, E. Bocquet, S. Brooks, D. Camacho, H. Camilleri, R. Campos, A. Rosell, A. Carnero Carretero, J. Castander, F. J. Cawthon, R. Choi, A. da Costa, L. N. Pereira, M. E. da Silva Davis, T. M. De Vicente, J. Desai, S. Doux, C. Drlica-Wagner, A. Eifler, T. Elvin-Poole, J. Everett, S. Evrard, A. E. Flaugher, B. Fosalba, P. Frieman, J. García-Bellido, J. Gatti, M. Gaztanaga, E. Giles, P. Glazebrook, K. Gruen, D. Gutierrez, G. Harrison, I. Herner, K. Hinton, S. R. Hollowood, D. L. Honscheid, K. Huterer, D. Jain, B. James, D. J. Jeffrey, N. Kacprzak, T. Kuehn, K. Lahav, O. Lee, S. Marshall, J. L. Menanteau, F. Miquel, R. Mohr, J. J. Myles, J. Nichol, R. C. Ogando, R. L. C. Palmese, A. Paterno, M. Percival, W. J. Malagón, A. A. Plazas Raveri, M. Roodman, A. Sánchez, C. Schutt, T. Sheldon, E. Sherman, N. Shin, T. Smith, M. Suchyta, E. Swanson, M. E. C. Tabbutt, M. Tarle, G. Thomas, D. Tucker, D. L. Vikram, V. Walker, A. R. Yanny, B.
author_facet	Sanchez-Cid, D. Ferté, A. Blazek, J. Samuroff, S. Amon, A. Andrade-Oliveira, F. Coloma-Nadal, J. M. Muir, J. Porredon, A. Prat, J. Weaverdyck, N. Yamamoto, M. Anbajagane, D. Becker, M. R. Carrilho, P. Chang, C. Crocce, M. Giannini, G. d'Assignies, W. DeRose, J. Dodelson, S. Krause, E. Legnani, E. Mena-Fernández, J. MacCrann, N. Pourtsidou, A. Preston, C. Rogozenski, P. Rodriguez-Monroy, M. Rosenfeld, R. Sanchez, E. Sevilla-Noarbe, I. Soares-Santos, M. To, C. Troxel, M. A. Tsedrik, M. Yin, B. Zuntz, J. Abbott, T. M. C. Aguena, M. Allam, S. Alves, O. Avila, S. Bacon, D. Bechtol, K. Bertin, E. Bocquet, S. Brooks, D. Camacho, H. Camilleri, R. Campos, A. Rosell, A. Carnero Carretero, J. Castander, F. J. Cawthon, R. Choi, A. da Costa, L. N. Pereira, M. E. da Silva Davis, T. M. De Vicente, J. Desai, S. Doux, C. Drlica-Wagner, A. Eifler, T. Elvin-Poole, J. Everett, S. Evrard, A. E. Flaugher, B. Fosalba, P. Frieman, J. García-Bellido, J. Gatti, M. Gaztanaga, E. Giles, P. Glazebrook, K. Gruen, D. Gutierrez, G. Harrison, I. Herner, K. Hinton, S. R. Hollowood, D. L. Honscheid, K. Huterer, D. Jain, B. James, D. J. Jeffrey, N. Kacprzak, T. Kuehn, K. Lahav, O. Lee, S. Marshall, J. L. Menanteau, F. Miquel, R. Mohr, J. J. Myles, J. Nichol, R. C. Ogando, R. L. C. Palmese, A. Paterno, M. Percival, W. J. Malagón, A. A. Plazas Raveri, M. Roodman, A. Sánchez, C. Schutt, T. Sheldon, E. Sherman, N. Shin, T. Smith, M. Suchyta, E. Swanson, M. E. C. Tabbutt, M. Tarle, G. Thomas, D. Tucker, D. L. Vikram, V. Walker, A. R. Yanny, B.
contents	We present the methodology for the weak lensing and galaxy clustering analyses of the Dark Energy Survey (DES) Year 6 data set. In this work, we design and validate the analysis pipeline for the cosmic shear, galaxy clustering plus galaxy$-$galaxy lensing ($2 \times 2$pt), and the joint analysis in the $3 \times 2$pt. Our framework accounts for key theoretical uncertainties, such as baryonic feedback and galaxy bias, incorporating both linear and non-linear models. We apply scale cuts in regimes where theoretical modeling becomes unreliable. The robustness of the pipeline is validated using mock data and simulations, confirming unbiased cosmological constraints and highlighting the importance of posterior projection effects in the validation process. As a result, we deliver robust and validated analysis pipelines for cosmic shear, $2 \times 2$pt, and $3 \times 2$pt in $Λ$CDM and $w$CDM scenarios, including a well-defined set of scales suitable for real data analysis, a robust prescription for theoretical systematics, and the theoretical covariance of the signal. This comprehensive methodology also lays the groundwork for future galaxy surveys such as the Vera C. Rubin Observatory Legacy Survey of Space and Time.
format	Preprint
id	arxiv_https___arxiv_org_abs_2601_14859
institution	arXiv
publishDate	2026
record_format	arxiv
spellingShingle	Dark Energy Survey Year 6 Results: Weak Lensing and Galaxy Clustering Cosmological Analysis Framework Sanchez-Cid, D. Ferté, A. Blazek, J. Samuroff, S. Amon, A. Andrade-Oliveira, F. Coloma-Nadal, J. M. Muir, J. Porredon, A. Prat, J. Weaverdyck, N. Yamamoto, M. Anbajagane, D. Becker, M. R. Carrilho, P. Chang, C. Crocce, M. Giannini, G. d'Assignies, W. DeRose, J. Dodelson, S. Krause, E. Legnani, E. Mena-Fernández, J. MacCrann, N. Pourtsidou, A. Preston, C. Rogozenski, P. Rodriguez-Monroy, M. Rosenfeld, R. Sanchez, E. Sevilla-Noarbe, I. Soares-Santos, M. To, C. Troxel, M. A. Tsedrik, M. Yin, B. Zuntz, J. Abbott, T. M. C. Aguena, M. Allam, S. Alves, O. Avila, S. Bacon, D. Bechtol, K. Bertin, E. Bocquet, S. Brooks, D. Camacho, H. Camilleri, R. Campos, A. Rosell, A. Carnero Carretero, J. Castander, F. J. Cawthon, R. Choi, A. da Costa, L. N. Pereira, M. E. da Silva Davis, T. M. De Vicente, J. Desai, S. Doux, C. Drlica-Wagner, A. Eifler, T. Elvin-Poole, J. Everett, S. Evrard, A. E. Flaugher, B. Fosalba, P. Frieman, J. García-Bellido, J. Gatti, M. Gaztanaga, E. Giles, P. Glazebrook, K. Gruen, D. Gutierrez, G. Harrison, I. Herner, K. Hinton, S. R. Hollowood, D. L. Honscheid, K. Huterer, D. Jain, B. James, D. J. Jeffrey, N. Kacprzak, T. Kuehn, K. Lahav, O. Lee, S. Marshall, J. L. Menanteau, F. Miquel, R. Mohr, J. J. Myles, J. Nichol, R. C. Ogando, R. L. C. Palmese, A. Paterno, M. Percival, W. J. Malagón, A. A. Plazas Raveri, M. Roodman, A. Sánchez, C. Schutt, T. Sheldon, E. Sherman, N. Shin, T. Smith, M. Suchyta, E. Swanson, M. E. C. Tabbutt, M. Tarle, G. Thomas, D. Tucker, D. L. Vikram, V. Walker, A. R. Yanny, B. Cosmology and Nongalactic Astrophysics We present the methodology for the weak lensing and galaxy clustering analyses of the Dark Energy Survey (DES) Year 6 data set. In this work, we design and validate the analysis pipeline for the cosmic shear, galaxy clustering plus galaxy$-$galaxy lensing ($2 \times 2$pt), and the joint analysis in the $3 \times 2$pt. Our framework accounts for key theoretical uncertainties, such as baryonic feedback and galaxy bias, incorporating both linear and non-linear models. We apply scale cuts in regimes where theoretical modeling becomes unreliable. The robustness of the pipeline is validated using mock data and simulations, confirming unbiased cosmological constraints and highlighting the importance of posterior projection effects in the validation process. As a result, we deliver robust and validated analysis pipelines for cosmic shear, $2 \times 2$pt, and $3 \times 2$pt in $Λ$CDM and $w$CDM scenarios, including a well-defined set of scales suitable for real data analysis, a robust prescription for theoretical systematics, and the theoretical covariance of the signal. This comprehensive methodology also lays the groundwork for future galaxy surveys such as the Vera C. Rubin Observatory Legacy Survey of Space and Time.
title	Dark Energy Survey Year 6 Results: Weak Lensing and Galaxy Clustering Cosmological Analysis Framework
topic	Cosmology and Nongalactic Astrophysics
url	https://arxiv.org/abs/2601.14859

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