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Heavy-Meson Spectrum Tests of the Oktay--Kronfeld Action
- Publication Year :
- 2014
-
Abstract
- We present heavy-meson spectrum results obtained using the Oktay--Kronfeld (OK) action on MILC asqtad lattices. The OK action was designed to improve the heavy-quark action of the Fermilab formulation, such that heavy-quark discretization errors are reduced. The OK action includes dimension-6 and -7 operators necessary for tree-level matching to QCD through order $\mathrm{O}(\Lambda^3/m_Q^3)$ for heavy-light mesons and $\mathrm{O}(v^6)$ for quarkonium, or, equivalently, through $\mathrm{O}(a^2)$ with some $\mathrm{O}(a^3)$ terms with Symanzik power counting. To assess the improvement, we extend previous numerical tests with heavy-meson masses by analyzing data generated on a finer ($a \approx 0.12\;$fm) lattice with the correct tadpole factors for the $c_5$ term in the action. We update the analyses of the inconsistency parameter and the hyperfine splittings for the rest and kinetic masses.<br />Comment: 7 pages, 7 figures, Lattice 2014 proceeding
- Subjects :
- High Energy Physics - Phenomenology
High Energy Physics - Phenomenology (hep-ph)
High Energy Physics - Lattice
High Energy Physics::Lattice
High Energy Physics - Lattice (hep-lat)
High Energy Physics::Phenomenology
FOS: Physical sciences
High Energy Physics::Experiment
Nuclear Experiment
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....5b148cba9226adc9e1b39f0e490a6789