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 [10.1088/1126-6708/2003/05/007].

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

LUBICZ, Vittorio;TARANTINO, CECILIA
2003-01-01

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).
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 [10.1088/1126-6708/2003/05/007].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/136964
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