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) over bar scheme at mu = 2 GeV, are: f(rho)(T)/f(rho) = 0.72(2)((+2)(-0)), f(K)(T)*/f(K)* = 0.74(2), f(phi)(T)/ f(phi) = 0.76(1).
Becirevic D, Lubicz V, Mescia F, & Tarantino C (2003). Coupling of the light vector meson to the vector and to the tensor current. JOURNAL OF HIGH ENERGY PHYSICS, 05, 007.
Titolo: | Coupling of the light vector meson to the vector and to the tensor current |
Autori: | |
Data di pubblicazione: | 2003 |
Rivista: | |
Citazione: | Becirevic D, Lubicz V, Mescia F, & Tarantino C (2003). Coupling of the light vector meson to the vector and to the tensor current. JOURNAL OF HIGH ENERGY PHYSICS, 05, 007. |
Abstract: | 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) over bar scheme at mu = 2 GeV, are: f(rho)(T)/f(rho) = 0.72(2)((+2)(-0)), f(K)(T)*/f(K)* = 0.74(2), f(phi)(T)/ f(phi) = 0.76(1). |
Handle: | http://hdl.handle.net/11590/136964 |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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