We are pleased to announce the release of WallGoMatrix v1.1.0, a key component of the WallGo suite for studying first-order cosmological phase transitions.
This version introduces several important corrections and refinements to next-to-leading logarithmic (NLL) scattering channels, which — while already possible to generate in WallGoMatrix v1.0.0 — were not included in prior analyses.
Highlights
New Features
-
Extended NLL coverage:
Inclusion and correction of NLL-level$2\to 2$ scattering channels in the automated generation framework. -
Enhanced truncation options:
Improved handling of theTruncateAtLeadingLogoption, including explicit tagging of
log-enhanced (logDiv) and power-enhanced (powDiv) structures in all relevant channels. -
Improved diagnostics:
Better internal checks for identifying suppressed or missing contributions at NLL order.
Corrections and improvements
The following changes affect channels that were previously incomplete or contained suppressed factors:
-
$F_1 F_2 \to F_3 F_4$ — Corrected overall factor of 2
in the vector–scalar interference terms that were previously suppressed in WallGoMatrix v1.0.0. -
$F_1 F_2 \to V_1 V_2$ — Fixed the assignment of propagator masses
when multiple vector groups propagate in the t- and u-channels. -
$S_1 S_2 \to V_1 V_2$ — Corrected a normalization factor in the squared s-channel contribution. -
$S_1 S_2 \to F_1 F_2$ — Restored missing interference terms
between the$s$ -,$t$ -, and$u$ -channels (previously suppressed in WallGoMatrix v1.0.0).
Requirements
- GroupMath v1.1.3 (automatically included)