2003/05/15 by Yu Jia, Jia, Yu
Physics and Astronomy · #Gamma-ray bursts and supernovae #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #hep-ex #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/0305172
4 pages, 1 figure
arxiv created 2003/05/15 · arxiv updated 2009/11/30
Heavy hadron production in e+e- annihilation is studied in the framework of heavy-quark recombination mechanism. This mechanism predicts a new type of 3-jet event such as bbq or bbq, which is power-suppressed relative to the standard bbg event. Furthermore, heavy quark fragmentation function also receives a contribution from this mechanism, which is \it calculable in perturbative QCD as long as the momentum fraction z is not too close to unity. We conjecture that the height of the peak of fragmentation function for S-wave heavy hadron scales as αs2(m) m/\lambdaqcd.