OPUCEM: A Library with Error Checking Mechanism for Computing Oblique Parameters

Understand

After a brief review of the electroweak radiative corrections to gauge-boson self-energies, otherwise known as the direct and oblique corrections, a tool for calculation of the oblique parameters is presented.

• This tool, named OPUCEM, brings together formulas from multiple physics models and provides an error-checking machinery to improve reliability of numerical results.
• It also sets a novel example for an "open-formula" concept, which is an attempt to improve the reliability and reproducibility of computations in scientific publications by encouraging the authors to open-source their numerical calculation programs.
• Finally, we demonstrate the use of OPUCEM in two detailed case studies related to the fourth Standard Model family.