6 papers · 1 filter
Next-to-next-to-leading order results for heavy quark pair production in quark--antiquark collisions: The one-loop squared contributions
J. G. Körner, Z. Merebashvili, M. Rogal
We calculate the next-to-next-to-leading order one-loop squared corrections to the production of heavy quark pairs in quark-antiquark annihilations. These are par…
Complete O(α) solution of the μ-decay problem
Jürgen G. Körner
In this talk I report on the results of a complete O(α) calculation of leptonic μ-decay. The calculation is complete in the sense that all polarization and mass effects have been i…
Heavy Baryons - Status and Overview (Theory)
S. Groote, J. G. Körner
We review recent progress in the understanding of the physics of heavy baryons. We begin our review by presenting some highlights of recent experimental findings on charm and botto…
Constituent Quark Model Approach to Heavy Baryon Transitions
J. G. Körner
I discuss the structure of current-induced bottom baryon to charm baryon transitions, and the structure of pion and photon transitions between heavy charm or bottom baryons in the…
Issues in Heavy Flavour Baryons
Jürgen G. Körner
I present a mini-review on the physics of heavy flavour baryons where I concentrate on the HQET description of their exclusive decay modes. In particular I discuss the structure of…
Polar Angle Dependence of the Alignment Polarization of Quarks Produced in e^+e^- Annihilation
S. Groote, J. G. K"orner, M. M. Tung
We calculate one-loop radiative QCD corrections to the three polarized and unpolarized structure functions that determine the beam-quark polar angle dependence of the alignment (or…