Combined analysis of charm-quark fragmentation-fraction measurements

Apr 12, 2016, 4:30 PM
SR3 (DESY Hamburg)


DESY Hamburg

Heavy Flavours (Charm, Beauty and Top) WG4 Heavy Flavours


Dr Oleksandr Zenaiev (DESY)


A summary of measurements of the fragmentation of charm quarks into a specific hadron is given. Measurements performed in photoproduction and deep inelastic scattering in e+-p, pp and e+e- collisions are compared, using up-to-date branching ratios. Within uncertainties, all measurements agree, supporting the hypothesis that fragmentation is independent of the specific production process. Compared to individual measurements, the averaged fragmentation fractions have significantly reduced uncertainties. Implications of results for other physical quantities are considered.

Primary author


Dr Andrii Verbytskyi (Max-Planck-Institut für Physik) Dr Mikhailo Lisovyi (Physikalisches Institut der Universität Heidelberg)

Presentation materials