We discuss the computation of the topological susceptibility using the method of spectral projectors and dynamical twisted mass fermions. We present our analysis concerning the O(a)-improvement of the topological susceptibility and we show numerical results for Nf=2 and Nf=2+1+1 flavours, performing a study of the quark mass dependence in terms of leading order chiral perturbation theory.
@article{arxiv.1312.3535,
title = {Topological susceptibility from twisted mass fermions using spectral projectors},
author = {Krzysztof Cichy and Elena Garcia-Ramos and Karl Jansen and Andrea Shindler},
journal= {arXiv preprint arXiv:1312.3535},
year = {2013}
}
Comments
7 pages, 3 figures; presented at the 31st International Symposium on Lattice Field Theory (Lattice 2013), 29 July - 3 August 2013, Mainz, Germany