Non-perturbative running of quark masses in three-flavour QCD

2016/11/29 by Isabel Campos, Campos, Isabel, Patrick Fritzsch +9
Physics and Astronomy · #Particle physics theoretical and experimental studies #High-Energy Particle Collisions Research #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.1611.09711

Abstract

We present our preliminary results for the computation of the non-perturbative running of renormalized quark masses in N_f = 3 QCD, between the electroweak and hadronic scales, using standard finite-size scaling techniques. The computation is carried out to very high precision, using massless O(a)-improved Wilson quarks. Following the strategy adopted by the ALPHA Collaboration for the running coupling, different schemes are used above and below a scale μ₀ ∼ m_b, which differ by using either the Schrödinger Functional or Gradient Flow renormalized coupling. We discuss our results for the running in both regions, and the procedure to match the two schemes.

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