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arXiv · 1712.09579

Simulation of an ensemble of $N_f=2+1+1$ twisted mass clover-improved fermions at physical quark masses

Jacob Finkenrath·Constantia Alexandrou·Simone Bacchio·Panagiotis Charalambous·Petros Dimopoulos·Roberto Frezzotti·Karl Jansen·Bartosz Kostrzewa·Giancarlo Rossi·Carsten Urbach
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Abstract

We present a general strategy aimed at generating $N_f=2+1+1$ configurations with quarks at their physical mass using maximally twisted mass fermions to ensure automatic $O(a)$ improvement, in the presence of a clover term tuned to reduce the charged to neutral pion mass difference. The target system, for the moment, is a lattice of size $64^3 \times 128$ with a lattice spacing $a\sim 0.08$ fm. We show preliminary results on the pion and kaon mass and decay constants.

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Jacob Finkenrath, Constantia Alexandrou, Simone Bacchio, Panagiotis Charalambous, Petros Dimopoulos, Roberto Frezzotti, Karl Jansen, Bartosz Kostrzewa, Giancarlo Rossi, Carsten Urbach. 2017-12-27. Simulation of an ensemble of $N_f=2+1+1$ twisted mass clover-improved fermions at physical quark masses. https://doi.org/10.1051/epjconf%2F201817502003

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