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Qcd Sum Rules for the G(KK*pi)(Q(2)) form factor
(World Scientific Publ Co Pte Ltd, 2003-01-01)
The QCD Sum Rules have been used to evaluate the form factor in the vertex KK*pi. The method of QCD Sum Rules is based on the duality principle in which it is assumed that the hadrons can simultaneously be described in two ...
The J/ψΦ decay channel of the Y(4140) Molecular State
(2015-01-01)
Using the QCD sum rule approach we study the Y(4140) state assuming that it can be described by a D* sD* s molecular state with JPC = 0++ quantum numbers. We evaluate the decay width into the channel Y J/ψΦ and we find the ...
QCD glueball sum rules and vacuum topology
(2008-01-01)
Several key problems of QCD sum rules in the spin-0 glueball channels are resolved by implementing nonperturbative short-distance physics from direct instantons and topological charge screening. A lattice-based instanton ...
QCD glueball sum rules and vacuum topology
(2007-01-01)
Several key problems of QCD sum rules in the spin-0 glueball channels are resolved by implementing nonperturbative short-distance physics from direct instantons and topological charge screening. A lattice-based instanton ...
Charmed mesons at finite temperature and chemical potential
(E D P Sciences, 2017-01-01)
We compute the masses of the pseudoscalar mesons pi(+), K-0 and D+ at finite temperature and baryon chemical potential. The computations are based on a symmetry-preserving Dyson-Schwinger equation treatment of a vector-vector ...
Ward identities, B -> V transition form factors and applications
(Iop Publishing Ltd, 2015-01-01)
Long distance effects are studied in the rare exclusive semileptonic B(d,s) -> V l(+)l(-) decays, where V denotes a K* or phi meson. The form factors, which describe the meson transition amplitudes in the effective Hamiltonian ...
Mixed charmonium-molecule interpretation for the y (3940) state
(2015-07-15)
QCD sum rules are used to study the mass and the decay widths of the Y(3940) state. We assume that it can be described by a mixed charmonium-molecule scalar current with JPC = 0++. Using a mixing angle θ = (76.0±5.0)°, we ...
Production of the y (4260) State in B Meson Decay
(2016-05-06)
We calculate the branching ratio for the production of the meson Y(4260) in the decay B- → Y(4260)K- . We use QCD sum rules approach and we consider the Y(4260) to be a mixture between charmonium and exotic tetraquark, ...