A lattice calculation of vector meson couplings to the vector and tensor currents using chirally improved fermions

Abstract

We present a quenched lattice calculation of $f_V^{\perp }/f_V$, the coupling of vector mesons to the tensor current normalized by the vector meson decay constant. The chirally improved lattice Dirac operator, which allows us to reach small quark masses, is used. We put emphasis on analyzing the quark mass dependence of $f_V^{\perp }/f_V$ and find only a rather weak dependence. Our results at the $\rho$ and $\varphi$ masses agree well with QCD sum rule calculations and those from previous lattice studies.

arXiv comment6 pages, 3 figures, one sentence removed

References in corpus (20)

• A General Method for Non-Perturbative Renormalization of Lattice Operators
• Flavor Symmetry and the Static Potential with Hypercubic Blocking
• Diffractive Leptoproduction of Vector Mesons in QCD
• Exclusive Semileptonic and Rare B-Meson Decays in QCD
• The $\rho$ Meson Light-Cone Distribution Amplitudes of Leading Twist Revisited
• Pion and Rho Structure Functions from Lattice QCD
• Nonperturbative Renormalisation of Composite Operators in Lattice QCD
• A new approach to Ginsparg-Wilson fermions
• Approximate Ginsparg-Wilson fermions: A first test
• Three loop MSbar tensor current anomalous dimension in QCD
• Coupling of the light vector meson to the vector and to the tensor current
• Next-to-leading order Q^2-evolution of the transversity distribution h_1(x, Q^2)
• Measurement of proton-dissociative diffractive photoproduction of vector mesons at large momentum transfer at HERA
• Setting the scale for the Luescher-Weisz action
• Two-loop anomalous dimensions for the structure function h1
• Towards a lattice calculation of $\Delta q$ and $\delta q$
• QCD vacuum tensor susceptibility and properties of transversely polarized mesons
• Quenched QCD with fixed-point and chirally improved fermion
• Recent results from systematic parameterizations of Ginsparg-Wilson fermions
• Experimental Results on the Diffractive Production of Light Vector Mesons at HERA

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