Decay of axial-vector mesons into VP and P gamma
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Decay of axial-vector mesons into VP and P gamma

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Decay of axial-vector mesons into VP and P gamma

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Roca Zamora, Luis; Palomar Burdeus, Juan Esteban; Oset Báguena, Eulogio Perfil
Aquest document és un/a article, creat/da en: 2004
We propose a phenomenological Lagrangian for the decay of the SU(3) nonets of the axial-vector mesons of $J^{PC}=1^{+-},1^{++}$ into a vector meson and a pseudoscalar constructed with tensor fields for the vector and axial-vector mesons. The formulation leads to a good reproduction of the different decay branching ratios and assuming vector meson dominance (VMD) it also leads to good results for the radiative decay of the $a_1$ into pion and photon, and in agreement with the structure proposed in the chiral tensor formulation of radiative decay of axial-vector mesons. The two SU(3) parameters and the mixing angle of $K_{1A}$ and $K_{1B}$ needed to give the physical $K_1(1270)$ and $K_1(1400)$ resonances are also determined.

    Roca Zamora, Luis Palomar Burdeus, Juan Esteban Oset Báguena, Eulogio 2004 Decay of axial-vector mesons into VP and P gamma Physical Review D 70 9 094006-1 094006-9
http://dx.doi.org/10.1103/PhysRevD.70.094006
distribuït sota llicència Creative Commons de Reconeixement-NoComercial 3.0 No adaptada

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