Publications (19)
Mixing and Decay Constants of Pseudoscalar Mesons
T. Feldmann, P. Kroll, B. Stech
We propose a new eta-eta' mixing scheme where we start from the quark flavor basis and assume that the decay constants in that basis follow the pattern of particle state mixing. On…
Predictions for the eta_c-gamma transition form factor
T. Feldmann, P. Kroll
The eta_c-gamma transition form factor is calculated in a model based on a modified hard scattering approach to exclusive reactions, in which transverse degrees of freedom are take…
Mixing and Decay Constants of Pseudoscalar Mesons: The Sequel
T. Feldmann, P. Kroll, B. Stech
We present further tests and applications of the new eta-eta' mixing scheme recently proposed by us. The particle states are decomposed into orthonormal basis vectors in a light-co…
A diquark model for baryons containing one heavy quark
D. Ebert, T. Feldmann, C. Kettner +1
We present a phenomenological ansatz for coupling a heavy quark with two light quarks to form a heavy baryon. The heavy quark is treated in the heavy mass limit, and the light quar…
Faddeev equation for heavy baryons in the quark-diquark picture
D. Ebert, T. Feldmann, C. Kettner +1
We describe heavy baryons as bound states of a quark and a diquark. For this purpose we derive the Faddeev equation for baryons containing a single heavy quark from a Nambu-Jona-La…
The Belle II Physics Book
E. Kou, P. Urquijo, W. Altmannshofer +524
We present the physics program of the Belle II experiment, located on the intensity frontier SuperKEKB collider. Belle II collected its first collisions in 2018, and is ex…