Coupling of the light vector meson to the vector and to the tensor current

Details Coupling of the light vector meson to the vector and to the tensor current Coupling of the light vector meson to the vector and to the tensor current

2003-01-20

arxiv.org/abs/hep-lat/0301020v4

JHEP 0305 (2003) 007

Physics

High Energy Physics

High Energy Physics - Lattice

15 pages, 4 PostScript figures (typos corrected,results unchanged)

Scientific paper

10.1088/1126-6708/2003/05/007

We present results for the coupling of the light vector mesons to the tensor current, relative to the standard vector meson decay constants. From an O(a)-improved lattice study, performed at three values of the lattice spacing in the quenched approximation, our final values (in the continuum limit), in the MS-scheme at 2 GeV, are: (f^T/f)_rho =0.72(2)(+2/-0), (f^T/f)_K* =0.74(2), (f^T/f)_phi =0.76(1).

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