Revisiting axial-vector meson mixing
نویسندگان
چکیده
منابع مشابه
Axial-vector meson mixing in orthocharmonium decays
In the light of the recent measurement by the BES Collaboration, the two-body decays of J/ψ and ψ into an axial-vector meson and a pseudoscalar meson are analyzed in the framework of the KA − KB mixing including substantial SU(3) and G parity violations due to onephoton annihilation. A somewhat puzzling pattern of the K 1 K − decay channel can be understood with no tight constraint on the mixin...
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The scale of a phenomenologically successful charge-symmetry-violating nucleon-nucleon interaction, that attributed to meson exchange with a ∆I = 1 rho-omega transition, is set by the Coleman-Glashow SU(2) breaking tadpole mechanism. A single tadpole scale has been obtained from symmetry arguments, electromagnetic meson and baryon measured mass splittings, and the observed isospin violating (∆I...
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The masses of the K1( 3P1) and K1( 1P1) are considered in a nonrelativistic constituent quark model, and the absolute value of the K1( 3P1) −K1(P1) mixing angle is determined to be about 59.29◦. Comparison of the theoretical predictions on the strong decay widths of the K1(1270) and K1(1400) in the 3P0 decay model as well as the production ratio of these two states in the τ decay between the av...
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Cabibbo-allowed charmed meson decays into a pseudoscalar meson and an axial-vector meson are studied. The charm to axial-vector meson transition form factors are evaluated in the Isgur-Scora-Grinstein-Wise quark model. The dipole momentum dependence of the D → K transition form factor and the presence of a sizable long-distance W -exchange are the two key ingredients for understanding the data ...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2012
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2011.12.013