Continuum physics with quenched overlap fermions
نویسندگان
چکیده
منابع مشابه
Continuum physics with quenched overlap fermions
We calculate mud =(mu+md)/2, ms, fπ and fK in the quenched continuum limit with UV-filtered overlap fermions. We see rather small scaling violations on lattices as coarse as a ≃ 1GeV and conjecture that similar advantages would be manifest in unquenched studies.
متن کاملContinuum physics with overlap fermions
We calculate mud =(mu+md)/2, ms, fπ and fK in the quenched continuum limit with UV-filtered overlap fermions. We see rather small scaling violations on lattices as coarse as a ≃ 1GeV and conjecture that similar advantages would be manifest in unquenched studies.
متن کاملLight Quark Masses with Overlap Fermions in Quenched QCD
We present the results of a computation of the sum of the strange and average up-down quark masses with overlap fermions in the quenched approximation. Since the overlap regularization preserves chiral symmetry at finite cutoff and volume, no additive quark mass renormalization is required and the results are O(a) improved. Our simulations are performed at β = 6.0 and volume V = 16 × 32, which ...
متن کاملCharmonium Spectrum from Quenched QCD with Overlap Fermions
Overlap fermions have the following desirable features: • Exact chiral symmetry on the lattice. • No additive quark mass renormalization. • No flavor symmetry breaking. • No O(a) error. • The O(ma) and O(ΛQCDma) errors are also small, from dispersion relation and renormalization constants. The first two features are especially significant for light quarks. Many exciting results at low quark mas...
متن کاملQuenched QCD at finite temperature with overlap Fermions ∗
In QCD for T > Tc screening correlators in the vector, and axial-vector channels are saturated by nearly non-interacting quark anti-quark pairs in the medium [1,2]. On the other hand, the scalar and pseudo-scalar screening masses show more complicated behavior— strong deviations from the ideal Fermi gas, and a strong temperature dependence. This puzzling behavior has been seen in quenched [3] a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review D
سال: 2005
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.72.071501