Reweighting towards the chiral limit

Details Reweighting towards the chiral limit Reweighting towards the chiral limit

2008-05-15

arxiv.org/abs/0805.2369v1

Phys.Rev.D78:014515,2008

Physics

High Energy Physics

High Energy Physics - Lattice

17 pages, 8 figures

Scientific paper

10.1103/PhysRevD.78.014515

We propose to perform fully dynamical simulations at small quark masses by reweighting in the quark mass. This approach avoids some of the technical difficulties associated with direct simulations at very small quark masses. We calculate the weight factors stochastically, using determinant breakup and low mode projection to reduce the statistical fluctuations. We find that the weight factors fluctuate only moderately on nHYP smeared dynamical Wilson-clover ensembles, and we could successfully reweight 16^4, (1.85fm)^4 volume configurations from m_q = 20MeV to m_q = 5MeV quark masses, reaching the epsilon-regime. We illustrate the strength of the method by calculating the low energy constant F from the epsilon-regime pseudo-scalar correlator.

Affiliated with

Also associated with

No associations

Rating

Reweighting towards the chiral limit 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 Reweighting towards the chiral limit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reweighting towards the chiral limit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-510674