3 papers
hep-ph2005
Coupled-channel model for charmonium levels and an option for X(3872)
Yu. S. Kalashnikova
The effects of charmed meson loops on the spectrum of charmonium are considered, with special attention paid to the levels above open-charm threshold. It is found that the coupling…
hep-ph2003
Generalized Weinberg's approach to the a0/f0 case
Yu. S. Kalashnikova
The problem of whether it is possible to distinguish composite from elementary particles is studied in the framework of Weinberg's approach. The possibility to extend this approach…
hep-ph1995
Constituent gluons from QCD
Yu. S. Kalashnikova
The notion of constituent gluon is introduced as a gluon propagating in the vacuum background field. The Hamiltonian approach for a system containing such gluon and a p…