Epsilon regime calculations with reweighted clover fermions

Details Epsilon regime calculations with reweighted clover fermions Epsilon regime calculations with reweighted clover fermions

2008-10-02

arxiv.org/abs/0810.0496v1

PoS LATTICE2008:081,2008

Physics

High Energy Physics

High Energy Physics - Lattice

Contribution to International Symposium on Lattice Field Theory, July 14 - 19, 2008, Williamsburg, Virginia, USA

Scientific paper

We perform fully dynamical simulations at small quark masses by reweighting in the quark mass, calculating the weight factors stochastically. This approach avoids some of the technical difficulties associated with direct simulations. We find that the weight factors fluctuate only moderately on nHYP smeared dynamical Wilson-clover ensembles, and demonstrate that the overlap between the original and reweighted configurations is large both for short and long distance observables. We could successfully reweight 16^4, (1.85fm)^4 volume configurations from m_q 20 MeV to m_q~5 MeV, and 24^4, (2.77fm)^4 configurations from m_q~8MeV to m_q~MeV quark masses, reaching the epsilon-regime. Using the pseudoscalar and axialvector correlators we predict the low energy constants Sigma and F and study their volume and mass dependence.

Affiliated with

Also associated with

No associations

Rating

Epsilon regime calculations with reweighted clover fermions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Epsilon regime calculations with reweighted clover fermions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Epsilon regime calculations with reweighted clover fermions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-493116