Browsing by Subject "Correlation matrix"
Now showing items 1-3 of 3
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Conference Object
Computation of correlation matrices for tetraquark candidates with Jp = 0+ and flavor structure q1q2q3q3
(Proceedings of Science (PoS), 2015)The conjecture that several recently observed mesons have a structure, which is not dominated by an ordinary quark-Antiquark pair, but by a four-quark structure, is being actively investigated both theoretical and ...
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Conference Object
Importance of closed quark loops for lattice QCD studies of tetraquarks
(Proceedings of Science (PoS), 2016)To investigate the light scalar tetraquark candidate a0(980) (quantum numbers JP =0+), a correlation matrix including a variety of two- and four-quark interpolating operators has to be computed. We discuss efficient ...
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Conference Object
Using a new analysis method to extract excited states in the scalar meson sector
(Proceedings of Science (PoS), 2016)We explore a method to extract energy eigenstates, called Athens Model Independent Analysis Scheme (AMIAS), which is an alternative to solving standard Generalized Eigenvalue Problems (GEVP). The method is based on ...