Charm- and bottom-quark masses from perturbative QCD

2006/05/31 by Radja Boughezal, R. Boughezal, M. Czakon +2 · 3 citations
Physics and Astronomy · #Charm (quantum number) #Charm quark #Hadron #High-Energy Particle Collisions Research #Order (exchange) #Particle physics #Particle physics theoretical and experimental studies #Perturbative QCD #Physics #Production (economics) #Quantum Chromodynamics and Particle Interactions #Quark #hep-ph

paper · pdf · doi:10.1103/physrevd.74.074006

published as Phys.Rev.D74:074006,2006 · 5 pages, 2 figures, final version as published

openalex publication_date 2006/10/12 · arxiv created 2006/10/13 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Using a new result for the first moment of the hadronic production cross section at order O(\ensuremathα_s³), and new data on the J/\ensuremathψ and \ensuremathψ^\ensuremath' resonances for the charm quark, we determine the MS masses of the charm and bottom quarks to be m_c(m_c)=1.295\ifmmode±\else\textpm\fi0.015 GeV and m_b(m_b)=4.205\ifmmode±\else\textpm\fi0.058 GeV. We assume that the continuum contribution to the sum rules is adequately described by pQCD. While we observe a large reduction of the perturbative error, the shifts induced by the theoretical input are very small. The main change in the central value of m_c is related to the experimental data. On the other hand, the value of m_b is not changed by our calculation to the assumed precision.

Citations

• High-precision ϵ-expansions of massive four-loop vacuum bubbles
• Heavy quark induced effective action for gauge fields in the SU(N_c)⊗ U(1) model and the low-energy structure of heavy quark current correlators
• An unquenched lattice QCD calculation of the mass of the bottom quark
• High-precision epsilon expansions of single-mass-scale four-loop vacuum bubbles
• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)

Cited by

• Form factors f ₊ ^B → π (0) and f ₊ ^D → π (0) in QCD and determination of |V ub | and |V cd |
• High-precision quark masses and QCD coupling fromnf=4lattice QCD
• R(s) and hadronic -Decays in Order αs4: technical aspects