Isoscalar meson spectroscopy from lattice QCD

By J. Dudek, R. Edwards, B. Joó, M. Peardon, D. Richards, Christopher E. Thomas. 2011

142 citations recorded by the source corpus.

We extract to high statistical precision an excited spectrum of single-particle isoscalar mesons using lattice QCD, including states of high spin and, for the first time, light exotic JPC isoscalars. The use of a novel quark field construction has enabled us to overcome the long-standing challenge of efficiently including quark-annihilation contributions. Hidden-flavor mixing angles are extracted and while most states are found to be close to ideally flavor mixed, there are examples of large mixing in the pseudoscalar and axial sectors in line with experiment. The exotic JPC isoscalar states appear at a mass scale comparable to the exotic isovector states.

Subfields: Condensed Matter Physics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/814921384ae399c6c96618e0c1cb7ce9f9487205

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Citations in the corpus

Scattering processes and resonances from lattice QCD (2017, methodology): “…case has been studied in a number of lattice calculations (Aoki et al., 2002; Beane et al., 2006, 2012c, 2008; Bulava et al., 2016; Du et al., 2004; Dudek et al., 2011b, 2012; Feng et al., 2010; Fu, 2013; Fukugita et al., 1995; Gupta et al., 1993; Helmes et al., 2015; Kuramashi et al., 1993; Li…”
The Status of Glueballs (2013, background): “Another result, obtained by the “Hadron Spectrum Collaboration” [16] concerns the spectrum of lightest and the first excited isoscalar meson states which includes quark-annihilation contributions.”
Light Hadron Masses from Lattice QCD (2012, methodology): “In their excited state spectroscopy studies (Bulava et al., 2010; Dudek et al., 2011; Lin et al., 2009) they employ Nf = 2 + 1 anisotropic clover fermions on a tree level tadpole improved Symanzik gauge action.”
Nonstandard heavy mesons and baryons: Experimental evidence (2017, background): “9 The LQCD hadron spectrum from MILC (163; 164), PACS-CS (165), BMW (166), QCDSF (162), RBC & UKQCD (167), Hadron Spectrum (168), UKQCD (169), FermilabMILC (170), HPQCD (171), and Mohler & Woloshyn (172).”
Excited and exotic charmonium spectroscopy from lattice QCD (2012, methodology): “This has already been done in the isoscalar light meson spectrum [12] and by applying the same methodology to charmonium we can determine the mixings between cc̄, ss̄ and 1 √ 2 ( uū+ dd̄ ) basis states; these calculations are ongoing [16].”
Towards the glueball spectrum from unquenched lattice QCD (2012, background): “The hadron spectrum collaboration [30] has computed the spectrum of excited mesons and baryons, although typically at a single lattice spacing and heavy quark masses.”
STUDIES OF NUCLEON RESONANCE STRUCTURE IN EXCLUSIVE MESON ELECTROPRODUCTION (2012, background): “4930 [hep-ph] [93] Jozef J.”