15 papers
Intrinsic Alignments in Redshift Space I: Symmetries
Kazuyuki Akitsu, Shi-Fan Chen, Zvonimir Vlah
Galaxy shapes are unique tensor tracers of large-scale structure, providing a promising avenue to both enhance current cosmological programs and detect new physics beyond the scala…
Two-loop renormalization and running of galaxy bias
Thomas Bakx, Mathias Garny, Henrique Rubira +1
We systematically extend the framework of galaxy bias renormalization to two-loop order. For the minimal complete basis of 29 deterministic bias operators up to fifth order in the…
Galaxy bias renormalization: Two-loop Power Spectrum, One-loop Trispectrum and Bispectrum
Thomas Bakx, Mathias Garny, Henrique Rubira +1
We present a complete treatment of fifth-order renormalized galaxy bias at the one- and two-loop level in real space, including gradient corrections to deterministic bias operators…
Efficient computation of the galaxy angular bispectrum in redshift space
Zucheng Gao, Zvonimir Vlah, Anthony Challinor
Efficient computation of the angular bispectrum is an essential part of modelling large-scale structure observations, but it still remains an extremely challenging task. In this wo…
Testing parity with composite-field spectra of BOSS and DESI luminous red galaxies
Zucheng Gao, Marina S. Cagliari, Azadeh Moradinezhad Dizgah +1
Detection of parity violation on cosmological scales would have profound implications for fundamental physics. Motivated in part by recent measurements of parity-odd four-point cor…
Parity in Composite-Field Galaxy Correlators
Zucheng Gao, Azadeh Moradinezhad Dizgah, Zvonimir Vlah
Detecting parity violation on cosmological scales would provide a striking clue to new physics. Large-scale structure offers the raw statistical power -- many three-dimensional mod…