782 citations · 10.3k across the 289 of their papers we have counts for
14 papers · 1 filter
Lepton flavor violating decays of vector mesons
Thomas Gutsche, Juan C. Helo, Sergey Kovalenko +1
We estimate the rates of lepton flavor violating decays of the vector mesons . The theoretical tools are based on an effective Lagrangian approach without referring…
Relativistic constituent quark model with infrared confinement
Tanja Branz, Amand Faessler, Thomas Gutsche +3
We refine the relativistic constituent quark model developed in our previous papers to include the confinement of quarks. It is done, first, by introducing the scale integration in…
X(3872) as a molecular DD* state in a potential model
Ian Woo Lee, Amand Faessler, Thomas Gutsche +1
We discuss the possibility that the X(3872) can be a hadronic DD* bound state in the framework of a potential model. The potential is generated by the exchange of pseudoscalar, sca…
Quasielastic rho0 electroproduction on the proton at intermediate energy: Role of scalar and pseudoscalar meson exchange
I. T. Obukhovsky, Amand Faessler, D. K. Fedorov +4
We present a detailed analysis of rho(0) electroproduction at intermediate energy for quasi-elastic knockout kinematics. The approach is based on an effective Lagrangian which gene…
Strong two-body decays of the Lambdac(2940)+ in a hadronic molecule picture
Yubing Dong, Amand Faessler, Thomas Gutsche +1
The Lambdac(2940)+ baryon with possible quantum numbers J(P) = 1/2+ and 1/2- is studied as a molecular state composed of a nucleon and D* meson. We give predictions for the strong…
J/psi gamma and psi(2S) gamma decay modes of the X(3872)
Yubing Dong, Amand Faessler, Thomas Gutsche +1
The X(3872) with quantum numbers J(PC) = 1(++) is considered as a composite state containing both molecular hadronic and a c bar(c) component. Based on this structure assumption we…
Semileptonic decays of double heavy baryons in a relativistic constituent three-quark model
Amand Faessler, Thomas Gutsche, Mikhail A. Ivanov +2
We study the semileptonic decays of double heavy baryons using a manifestly Lorentz covariant constituent three-quark model. We present complete results on transition form factors…
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(+-)…
Hadronic Atoms
J. Gasser, V. E. Lyubovitskij, A. Rusetsky
We review the theory of hadronic atoms in QCD+QED. The non-relativistic effective Lagrangian approach, used to describe this type of bound states, is illustrated with the case of p…
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…