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arXiv · hep-lat/0408038

Preliminary results of the heavy-light meson spectrum using chirally improved light quarks

Tommy Burch·Christof Gattringer·Andreas Schäfer
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Abstract

Using a ``wall'' of quark point sources, we invert the chirally improved Dirac operator to create an ``incoherent'' collection of quark propagators which originate from all spatial points of the source time slice. The lowest-order NRQCD approximation is used to create heavy-quark propagators from the same wall source. However, since the numerical cost involved in computing such heavy-quark propagators is low, we are able to use a number of source gauge paths to establish coherence between the heavy and light quarks at several spatial separations. The resulting collection of heavy-light meson correlators is analyzed to extract the corresponding mass spectrum.

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Tommy Burch, Christof Gattringer, Andreas Schäfer. 2004-10-12. Preliminary results of the heavy-light meson spectrum using chirally improved light quarks. https://doi.org/10.1016/j.nuclphysbps.2004.11.182

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