{"work":{"id":"ff3623b2-379a-4d24-80dd-3266aa77a5ff","openalex_id":null,"doi":null,"arxiv_id":"2411.12022","raw_key":null,"title":"DESI 2024 VII: Cosmological Constraints from the Full-Shape Modeling of Clustering Measurements","authors":null,"authors_text":"DESI Collaboration: A. G. Adame, J. Aguilar, S. Ahlen, S. Alam, D. M. Alexander, C. Allende Prieto","year":2024,"venue":"astro-ph.CO","abstract":"We present cosmological results from the measurement of clustering of galaxy, quasar and Lyman-$\\alpha$ forest tracers from the first year of observations with the Dark Energy Spectroscopic Instrument (DESI Data Release 1). We adopt the full-shape (FS) modeling of the power spectrum, including the effects of redshift-space distortions, in an analysis which has been validated in a series of supporting papers. In the flat $\\Lambda$CDM cosmological model, DESI (FS+BAO), combined with a baryon density prior from Big Bang Nucleosynthesis and a weak prior on the scalar spectral index, determines matter density to $\\Omega_\\mathrm{m}=0.2962\\pm 0.0095$, and the amplitude of mass fluctuations to $\\sigma_8=0.842\\pm 0.034$. The addition of the cosmic microwave background (CMB) data tightens these constraints to $\\Omega_\\mathrm{m}=0.3056\\pm 0.0049$ and $\\sigma_8=0.8121\\pm 0.0053$, while further addition of the the joint clustering and lensing analysis from the Dark Energy Survey Year-3 (DESY3) data leads to a 0.4% determination of the Hubble constant, $H_0 = (68.40\\pm 0.27)\\,{\\rm km\\,s^{-1}\\,Mpc^{-1}}$. In models with a time-varying dark energy equation of state, combinations of DESI (FS+BAO) with CMB and type Ia supernovae continue to show the preference, previously found in the DESI DR1 BAO analysis, for $w_0>-1$ and $w_a<0$ with similar levels of significance. DESI data, in combination with the CMB, impose the upper limits on the sum of the neutrino masses of $\\sum m_\\nu < 0.071\\,{\\rm eV}$ at 95% confidence. DESI data alone measure the modified-gravity parameter that controls the clustering of massive particles, $\\mu_0=0.11^{+0.45}_{-0.54}$, while the combination of DESI with the CMB and the clustering and lensing analysis from DESY3 constrains both modified-gravity parameters, giving $\\mu_0 = 0.04\\pm 0.22$ and $\\Sigma_0 = 0.044\\pm 0.047$, in agreement with general relativity. [Abridged.]","external_url":"https://arxiv.org/abs/2411.12022","cited_by_count":null,"metadata_source":"pith","metadata_fetched_at":"2026-05-21T12:35:07.651947+00:00","pith_arxiv_id":"2411.12022","created_at":"2026-05-09T02:48:56.275028+00:00","updated_at":"2026-05-21T12:35:07.651947+00:00","title_quality_ok":true,"display_title":"DESI 2024 VII: Cosmological Constraints from the Full-Shape Modeling of Clustering Measurements","render_title":"DESI 2024 VII: Cosmological Constraints from the Full-Shape Modeling of Clustering Measurements"},"hub":{"state":{"work_id":"ff3623b2-379a-4d24-80dd-3266aa77a5ff","tier":"hub","tier_reason":"10+ Pith inbound or 1,000+ external citations","pith_inbound_count":30,"external_cited_by_count":null,"distinct_field_count":4,"first_pith_cited_at":"2024-11-18T20:03:34+00:00","last_pith_cited_at":"2026-05-20T17:59:05+00:00","author_build_status":"not_needed","summary_status":"needed","contexts_status":"needed","graph_status":"needed","ask_index_status":"not_needed","reader_status":"not_needed","recognition_status":"not_needed","updated_at":"2026-06-05T19:59:50.956765+00:00","tier_text":"hub"},"tier":"hub","role_counts":[{"context_role":"background","n":14},{"context_role":"dataset","n":2},{"context_role":"baseline","n":1},{"context_role":"method","n":1}],"polarity_counts":[{"context_polarity":"background","n":12},{"context_polarity":"unclear","n":2},{"context_polarity":"use_dataset","n":2},{"context_polarity":"baseline","n":1},{"context_polarity":"use_method","n":1}],"runs":{},"summary":{},"graph":{},"authors":[]}}