Analytical approaches to the calculation of f+(0)

2007/03/08 by J. Portolés, Portoles, J.
Physics and Astronomy · #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Atomic and Molecular Physics

paper · pdf · doi:10.48550/arxiv.hep-ph/0703093

Abstract

Kl3 decays constitute, at present, the golden modes to extract |Vus| from experimental data. Its incertitude is dominated by the theoretical error in the determination of the vector form factor at zero transfer of momentum. I review the most relevant analytical approaches for the calculation of this parameter.

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