9 papers · 1 filter
Meson wave function from holographic models
Alfredo Vega, Ivan Schmidt, Tanja Branz +2
We consider the light-front wave function for the valence quark state of mesons using the AdS/CFT correspondence, as has been suggested by Brodsky and Teramond. Two kinds of wave f…
The Scalars f0(980) and a0(980) as Hadronic Molecules
Tanja Branz, Thomas Gutsche, Valery Lyubovitskij
We discuss the hadronic molecule issue in the light and heavy meson sector. Thereby we use the radiative decays of the scalars f0(980) and a0(980) to study its possible molecular K…
Reply to comment on "Two-photon decay of the sigma meson"
Francesco Giacosa, Thomas Gutsche, Valery E. Lyubovitskij
We reply to the preceding Comment by E. van Beveren et al., arXiv:0811.2589 [hep-ph].
X(3872) as a hadronic molecule and its decays to charmonium states and pions
Yubing Dong, Amand Faessler, Thomas Gutsche +2
The X(3872) with quantum numbers J(PC) = 1(++) is considered as a composite hadronic state comprised of the dominant molecular D(0) D*(0) component and other hadronic pairs - D(+-)…
eta(1405) in a chiral approach based on mixing of the pseudoscalar glueball with the first radial excitations of eta and eta'
Thomas Gutsche, Valery E. Lyubovitskij, Malte C. Tichy
The supernumerous eta(1405) is considered a strong candidate for the pseudoscalar glueball. In a phenomenological chiral approach, we consider a mixing scenario of bare pseudoscala…
Hadronic molecule structure of the Y(3940) and Y(4140)
Tanja Branz, Thomas Gutsche, Valery E. Lyubovitskij
We report on further evidence that the Y(3940) and the recently observed Y(4140) are heavy hadron molecule states with quantum numbers J(PC) = 0(++). The Y(3940) state is considere…