6 papers · 1 filter
Soft gluon contributions to the B --> K eta' amplitude in a low energy bosonization model
J. O. Eeg, K. Kumericki, I. Picek
Intriguing B --> K eta' decays provide a unique opportunity to study a joining of two-gluon configurations arising from the penguin b --> sG and b --> sGG transitions, with those i…
Chiral quark models and their applications
Jan O. Eeg, Aksel Hiorth
We give an overview of chiral quark models, both for the pure light sector and the heavy-light sector. We describe how such models can be bosonized to obtain welWe give an overview…
Theoretical estimate(s) of the CP-violating quontity epsilon-prime/epsilon in K -> 2 pi decays
J. O. Eeg
I give a short presentation of the theoretical prediction of epsilon-prime/epsilon. Short distance and especially long distance aspects of the computation is discussed. I consentra…
Long vs. short distance dispersive two-photon K_L \to μ^+ μ^- amplitude
J. O. Eeg, K. Kumericki, I. Picek
We report on the calculation of the two-loop electroweak, two-photon mediated short-distance dispersive K_L \to μ^+μ^- decay amplitude. QCD corrections change the sign of this cont…
A New Estimate of
S. Bertolini
We discuss a new estimate of in the kaon system. The present approach is based on the evaluation of the hadronic matrix elements of the \mbox{} e…
Momentum Dependence of the Penguin Interaction
A. E. Bergan, J. O. Eeg
We have considered the penguin interaction contribution to decays. In particular, we have investigated the effect of the momentum dependence of the penguin coef…