$B$ meson mixing at NNLO: technical aspects
Pascal Reeck, Vladyslav Shtabovenko, Matthias Steinhauser
TL;DR
This paper discusses the technical details involved in calculating NNLO corrections to neutral B meson mixing, including master integrals, gamma matrix traces, and tensor integrals.
Contribution
It provides detailed methods for complex calculations essential for precise NNLO predictions in B meson mixing.
Findings
Computed master integrals for finite charm and bottom quark masses
Developed techniques for traces over 22 gamma matrices
Evaluated tensor integrals with rank up to 11
Abstract
We provide details to several technical aspects which are important for the calculation of next-to-next-to-leading order corrections to the mixing of neutral mesons. This includes the computation of the master integrals for finite charm and bottom quark masses, traces over products of up to 22 matrices and tensor integrals with up to rank 11.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · High-Energy Particle Collisions Research · Quantum Chromodynamics and Particle Interactions