Details

Autor(en) / Beteiligte

• Blum, T.
• Boyle, P. A.
• Christ, N. H.
• Frison, J.
• Garron, N.
• Hudspith, R. J.
• Izubuchi, T.
• Janowski, T.
• Jung, C.
• Jüttner, A.
• Kelly, C.
• Kenway, R. D.
• Lehner, C.
• Marinkovic, M.
• Mawhinney, R. D.
• McGlynn, G.
• Murphy, D. J.
• Ohta, S.
• Portelli, A.
• Sachrajda, C. T.
• Soni, A.

Titel

Domain wall QCD with physical quark masses

Ist Teil von

• Physical review. D, 2016-04, Vol.93 (7), Article 074505

Ort / Verlag

United States: American Physical Society

Erscheinungsjahr

2016

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• We present results for several light hadronic quantities (f sub([pi]), f sub(K), B sub(K), m sub(ud), m sub(s), t super(1/2) sub(0), w sub(0)) obtained from simulations of 2+1 flavor domain wall lattice QCD with large physical volumes and nearly physical pion masses at two lattice spacings. We perform a short, O(3)%, extrapolation in pion mass to the physical values by combining our new data in a simultaneous chiral/continuum "global fit" with a number of other ensembles with heavier pion masses. We use the physical values of m sub([pi]), m sub(K) and m sub([Omega]) to determine the two quark masses and the scale-all other quantities are outputs from our simulations. We obtain results with subpercent statistical errors and negligible chiral and finite-volume systematics for these light hadronic quantities, including f sub([pi])=130.2(9)MeV; f sub(K)=155.5(8)MeV; the average up/down quark mass and strange quark mass in the MS scheme at 3 GeV, 2.997(49) and 81.64(1.17) MeV respectively; and the neutral kaon mixing parameter, BK, in the renormalization group invariant scheme, 0.750(15) and the MS scheme at 3 GeV, 0.530(11).