NNLO QCD corrections to the m_c dependent matrix elements in B -> X_s gamma
Radja Boughezal
TL;DR
This paper reports recent advances in calculating NNLO QCD corrections to charm-dependent matrix elements in B -> X_s gamma, highlighting new virtual fermionic contributions at order alpha_s^2.
Contribution
It presents new NNLO QCD correction calculations, especially the virtual fermionic contributions, improving theoretical precision for B -> X_s gamma decay.
Findings
Enhanced accuracy in theoretical predictions for B -> X_s gamma
New virtual fermionic correction results at order alpha_s^2
Improved understanding of charm quark mass effects
Abstract
Recent developements in the calculation of the NNLO QCD corrections to the charm quark mass dependent matrix elements in B -> X_s gamma are reported. Special emphasis is put on the new results of the virtual O(alpha_s^2) fermionic contribution to these matrix elements [1].
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions · High-Energy Particle Collisions Research