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LapH interpolating fields with open boundary conditions

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arxiv 2212.09695 v1 pith:BMEFPCTH submitted 2022-12-19 hep-lat

LapH interpolating fields with open boundary conditions

classification hep-lat
keywords laphboundarycalculationsconditionsopenprocedureanalyseborder
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The stochastic Laplacian Heaviside (LapH) method has proven to be successful in hadronic calculations. In this work, with charm-light spectroscopy in mind, we set up and optimise the LapH procedure limiting ourselves to the evaluation of two-point mesonic correlation functions. The calculations are performed on CLS ensembles with $N_f=2+1$ Wilson-Clover fermions on a $32^3\times64$ lattice with open boundary conditions. We analyse the interplay between the LapH parameters and the boundary effects, and implement a fitting procedure to isolate excitations coming from the border.

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