6 papers · 1 filter
On Higgs Production in Photon Photon Collisions
Oleg Yakovlev
I review recent progress on the Higgs production in gamma gamma collisions at the photon mode of the Next Linear Collider (NLC). I mainly focus on two particular topics. The first…
Top quark production near threshold at NLC
Oleg Yakovlev, Stefan Groote
In this talk we discuss the process e+e- -> t t-bar near threshold. In particular we discuss a quark mass definition which is a generalization of the static PS mass. The new defini…
A dynamic mass definition near the t t-bar threshold
Stefan Groote, Oleg Yakovlev
Starting from general considerations about the different concepts which exist for the definition of the quark mass near the pair production threshold, we introduce the definition o…
QCD Sum Rules for Heavy Flavors
O. Yakovlev, R. Rückl, S. Weinzierl
We give a short review of QCD sum rule results for B and D mesons and Lambda_Q and Sigma_Q baryons. We focus mainly on recent developments concerning semileptonic B->pion and D->pi…
|V_{ub}| and Perturbative QCD Effects in the Transition Form Factor
S. Weinzierl, O. Yakovlev
We report on recent improvements for the form factor. The updated value of is presented.
Couplings of heavy hadrons with soft pions from QCD sum rules
A. G. Grozin, O. I. Yakovlev
We estimate the couplings in the Heavy Hadron Chiral Theory (HHCT) lagrangian from the QCD sum rules in an external axial field. Stability of the sum rules at moderate values of th…