6 papers · 1 filter
BLM scale for the pion transition form factor
Blazenka Melic, Bene Nizic, Kornelija Passek
We review the determination of the NLO Brodsky-Lepage-Mackenzie (BLM) renormalization scale for the pion transition form factor. We argue that the prediction for the pion transitio…
Lifetime pattern of heavy hadrons
B. Guberina, B. Melic, H. Stefancic
We discuss the lifetime pattern of weakly decaying heavy hadrons.
Nucleon strangeness as the response to a strangeness-sensitive probe in a class of hadron models
D. Klabucar, K. Kumericki, B. Melic +1
On top of its valence quarks, the full nucleon ground state may contain appreciable admixture of s-\bar{s} pairs already at small momentum transfers. This paper discusses strangene…
Inclusive decays and lifetimes of doubly charmed baryons
B. Guberina, B. Melic, H. Stefancic
We extend the analysis of weak decays of heavy hadrons to the case of doubly charmed baryons, Ξ_{cc}^{++}, Ξ_{cc}^{+} and Ω_{cc}^{+}. Doubly charmed baryons are modeled as a heavy-…
Hard exclusive photoproduction of and mesons
C. F. Berger, W. Schweiger
We consider the reaction , with M being either a or a meson, within perturbative QCD treating the proton as a quark-diquark system. The phenomenological coupl…
On the PQCD prediction for the pion form factor
B. Melic, B. Nizic, K. Passek
We comment on the results of a complete leading-twist next-to-leading order QCD analysis of the spacelike pion electromagnetic form factor at large-momentum transfer Q. For the asy…