The Strange Quark Mass from QCD Sum Rules
| dc.creator | Jamin, Matthias | |
| dc.creator | M"unz, Manfred | |
| dc.date | 1994-09-15 | |
| dc.date | 1994-09-15 | |
| dc.date.accessioned | 2026-07-07T10:35:05Z | |
| dc.date.available | 2026-07-07T10:35:05Z | |
| dc.description | The strange quark mass is calculated from QCD sum rules for the divergence of the vector as well as axial-vector current in the next-next-to-leading logarithmic approximation. The determination for the divergence of the axial-vector current is found to be unreliable due to large uncertainties in the hadronic parametrisation of the two-point function. From the sum rule for the divergence of the vector current, we obtain a value of $m_s\equiv\mb_s(1\,\gev)=189\pm32\,\mev$, where the error is dominated by the unknown perturbative ${\cal O}(α_s^3)$ correction. Assuming a continued geometric growth of the perturbation series, we find $m_s=178\pm18\,\mev$. Using both determinations of $m_s$, together with quark-mass ratios from chiral perturbation theory, we also give estimates of the light quark masses $m_u$ and $m_d$. | |
| dc.description | 31 pages, 5 figures as separate uu-file, (Small TeX-problem corrected) CERN--TH.7435/94, TUM-T31-78/94 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9409335 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9409335 | |
| dc.identifier | Z.Phys.C66:633-646,1995 | |
| dc.identifier | doi:10.1007/BF01579638 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/179650 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | The Strange Quark Mass from QCD Sum Rules | |
| dc.type | text |