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20242026
most citedThe ACCEL2 Project: Precision Measurements of EFT Parameters and BAO Peak Shifts for the Lyman- Forest

13 citations · 14 across the 8 of their papers we have counts for

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Showing astro-ph.COShow all

6 papers · 1 filter

astro-ph.CO2026

Cosmological Concordance in an Especially Opaque Universe: A Tentative Cosmological Detection of Physical Neutrino Mass in CDM

James M. Sullivan, Roger de Belsunce, Mikhail M. Ivanov

The measurement of the sum of neutrino masses is among the primary promises of precision cosmology, achievable by combining complementary early- and late-Universe probes. However,…

astro-ph.CO2026

Analytic compression of the effective field theory of the Lyman-alpha forest

N. G. Karaçaylı, M. Ivanov, R. de Belsunce +3

The 1D flux power spectrum () of the Ly forest provides an exceptionally high-resolution probe of structure formation down to small scales ($k\approx1-10~\text{…

astro-ph.CO2025

Bridging Simulations and EFT: A Hybrid Model of the Lyman-Alpha Forest Field

Roger de Belsunce, Boryana Hadzhiyska, Mikhail M. Ivanov

The Lyman-alpha (Lya) forest is a unique probe of cosmology and the intergalactic medium at high redshift and small scales. The statistical power of the ongoing Dark Energy Spectro…

astro-ph.CO2025★ 1 cited

Modeling the Cosmological Lyman- Forest at the Field Level

Roger de Belsunce, Mikhail M. Ivanov, James M. Sullivan +2

The distribution of absorption lines in the spectra of distant quasars, called the Lyman- (Ly-) forest, is a unique probe of cosmology and the intergalactic medium at high re…

astro-ph.CO2025

Measuring and unbiasing the BAO shift in the Lyman-Alpha forest with AbacusSummit

Boryana Hadzhiyska, Roger de Belsunce, Andrei Cuceu +4

The currently observing Dark Energy Spectroscopic Instrument (DESI) places sub-percent constraints on the Baryon Acoustic Oscillations (BAO) scaling parameters from the Lyman- (…

astro-ph.CO2024★ 13 cited

The ACCEL2 Project: Precision Measurements of EFT Parameters and BAO Peak Shifts for the Lyman- Forest

Roger de Belsunce, Shi-Fan Chen, Mikhail M. Ivanov +4

We present precision measurements of the bias parameters of the one-loop power spectrum model of the Lyman-alpha (Lya) forest, derived within the effective field theory of large-sc…