Determining F_pi from spectral sum rules

Details Determining F_pi from spectral sum rules Determining F_pi from spectral sum rules

2006-07-17

arxiv.org/abs/hep-lat/0607022v1

Phys.Lett. B643 (2006) 235-239

Physics

High Energy Physics

High Energy Physics - Lattice

8 pages

Scientific paper

10.1016/j.physletb.2006.11.003

We derive spectral sum rules for a system with two quarks coupled to an
imaginary isospin chemical potential in the \epsilon regime. The sum rules show
an explicit dependence on the pion decay constant which should make it possible
to measure F_pi from the eigenvalue spectrum of this particular Dirac operator.

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