pybird.matching module

pybird.matching.pad_along_axis(array, target_length, axis=0)[source]

class pybird.matching.Matching(nl, co=<pybird.common.Common object>)[source]

Bases: object

A class for implementing IR and UV matching in EFT calculations.

The Matching class handles infrared (IR) and ultraviolet (UV) matching between different components of the power spectrum and correlation function. It ensures proper convergence of loop integrals by accounting for the contributions that were set to zero by dimensional regularization in the perturbation theory calculations.

co

Common parameters shared across calculations.

Type:: Common

fft

Fourier transform engine for FFTLog operations.

Type:: FourierTransform

qUV

Internal q values for UV matching calculations.

Type:: ndarray

qIR

Internal q values for IR matching calculations.

Type:: ndarray

uv13

UV matching coefficients for P13 terms.

Type:: ndarray

uv22

UV matching coefficients for P22 terms.

Type:: ndarray

ir13

IR matching coefficients for P13 terms.

Type:: ndarray

ir22

IR matching coefficients for P22 terms.

Type:: ndarray

UVPsCf(bird)[source]: Apply UV matching to power spectrum and correlation function. Adjusts P13 and P22 terms to account for UV-sensitive contributions.

IRPsCf(bird)[source]: Apply IR matching to power spectrum and correlation function. Adjusts P13 and P22 terms to account for IR-sensitive contributions.

UVPsCf(bird)[source]

IRPsCf(bird)[source]