SHAMe-SF modeling of small-scale DESI ELG clustering delivers 6% precision on σ8 and Ωm h², matching full DR1 results with 1% volume.
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Forecasts show that line-of-sight dependent 3PCF tightens sigma_8 constraints by a factor of 5 over 2PCF alone for Roman ELG and DESI LRG samples on scales <80 Mpc/h using AbacusSummit simulations.
The fraction of AbacusSummit cosmologies excluded at 3σ by small-scale clustering multipoles drops from 81% to 25% when moving from fixed HOD parameters to broad marginalization over the five-parameter HOD model.
citing papers explorer
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Cosmological constraints from the small scale clustering of Emission Line Galaxies
SHAMe-SF modeling of small-scale DESI ELG clustering delivers 6% precision on σ8 and Ωm h², matching full DR1 results with 1% volume.
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Increasing the sensitivity of full-shape galaxy clustering measurements in configuration-space with three-point statistics
Forecasts show that line-of-sight dependent 3PCF tightens sigma_8 constraints by a factor of 5 over 2PCF alone for Roman ELG and DESI LRG samples on scales <80 Mpc/h using AbacusSummit simulations.
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Bounding the Effect of HOD Assumptions on Small-Scale Clustering Constraints
The fraction of AbacusSummit cosmologies excluded at 3σ by small-scale clustering multipoles drops from 81% to 25% when moving from fixed HOD parameters to broad marginalization over the five-parameter HOD model.
- Cosmological constraints from neighbor-density-weighted marked correlation functions