Anomalous dimension of the heavy-light quark current in HQET up to four loops

Andrey Grozin

Anomalous dimension of the heavy-light quark current in HQET up to four loops

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arxiv 2311.09894 v3 pith:ICAXGJ6Q submitted 2023-11-16 hep-ph

Andrey Grozin This is my paper · ORCID

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keywords anomalouscurrentdimensionfourheavy-lighthqetloopsquark

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abstract

The anomalous dimension of the heavy-light quark current in HQET is calculated up to four loops. The N$^3$LL perturbative correction to $f_B/f_D$ is obtained.

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Quark Transverse Spin-Momentum Correlation of the Pion from Lattice QCD: The Boer-Mulders Function
hep-lat 2024-12 conditional novelty 6.0 of 10

The pion Boer-Mulders function is computed for the first time from lattice QCD and is found to decay with transverse separation, becoming compatible with zero around 0.5 to 0.6 fm.

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