Toward the excited meson spectrum of dynamical QCD
By J. Dudek, R. Edwards, M. Peardon, D. Richards, Christopher E. Thomas. 2010
184 citations recorded by the source corpus.
We present a detailed description of the extraction of the highly excited isovector meson spectrum on dynamical anisotropic lattices using a new quark-field construction algorithm and a large variational basis of operators. With careful operator construction, the combination of these techniques is used to identify the continuum spin of extracted states reliably, overcoming the reduced rotational symmetry of the cubic lattice. Excited states, states with exotic quantum numbers (0+-, 1-+ and 2+-) and states of high spin are resolved, including, for the first time in a lattice QCD calculation, spin-four states. The determinations of the spectrum of isovector mesons and kaons are performed on dynamical lattices with two volumes and with pion masses down to ~ 400 MeV, with statistical precision typically at or below 1% even for highly excited states.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/af25deb3ca2e06a6176b1a79c49caae745d91c68
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In Nuclear and High Energy Physics
Citations in the corpus
- Heavy quarkonium in extreme conditions (2019, unknown): “104 SU(3) Nτ=24 T=839MeV Δ=10-15 all avg Δ=10-15 Δ=10-6 Δ=10-2 Δ=10-1 10-15 fit [5-16] 10-6 fit [5-16] 10-2 fit [5-16] 10-1 fit [5-16]”
- The XYZ states: Experimental and theoretical status and perspectives (2019, background): “[129, 886, 903], these results should only be considered a guide to the pattern of narrow resonances, and the precise resonance mass and other properties can not be obtained.”
- STUDIES OF NUCLEON RESONANCE STRUCTURE IN EXCLUSIVE MESON ELECTROPRODUCTION (2012, background): “It was argued that the extractedN and ∆ spectrum can be interpreted in terms of single-hadron states, and based on investigations in the meson sector [92] and initial investigations of the baryon sector at a larger volume [89], little evidence was found for multi-hadron states.”
- Scattering processes and resonances from lattice QCD (2017, methodology): “…years have seen tremendous advances in lattice QCD methods, such as those described in (Blossier et al., 2009; Dudek, 2011; Dudek and Edwards, 2012; Dudek et al., 2013a, 2011a, 2009, 2010; Edwards et al., 2011; Foley et al., 2005; Liu et al., 2012; Luscher, 1986b; Luscher and Wolff, 1990; Michael,…”