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).
2003
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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