Excited mesons from Nf=2 dynamical clover Wilson lattices

Details Excited mesons from Nf=2 dynamical clover Wilson lattices Excited mesons from Nf=2 dynamical clover Wilson lattices

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006slft.confe.177h&link_type=abstract

Proceedings of the XXIVth International Symposium on Lattice Field Theory. July 23-28, 2006, Tucson, Arizona., p.177.1

Physics

Scientific paper

We study mesons on the lattice with a special focus on excited states. For that purpose we con- struct several quark sources with different spatial smearings, including p-waves. These quark sources are then combined with the appropiate Dirac structures to form meson interpolators of definite spin. We use these operators to construct a cross correlation matrix from which we ex- tract ground and excited meson states using the variational method. For the calculations we use gauge configurations with N f = 2 dynamical Clover Wilson fermions provided by the CP-PACS collaboration. We show preliminary results for pseudoscalar, scalar, vector and pseudovector mesons.

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