Upon the determination of heavy quark fragmentation functions ine + e − annihilation

Charm and bottom production: theoretical results versus experimental data

“…This suggests that indeed most of the variation in the cross section is simply due to the changes in S , a s S = S ( R = ); the argument is the same for the two c hoices R = 0 =2, 5 = 300 MeV, and R = 0 =4, 5 = 151 MeV. As for the B-meson di erential p T distribution, shown in g. 19, we convoluted the b quark theoretical curve with a Peterson fragmentation function [43], using = 0 : 006 [53], and we rescaled the curves by a constant factor of 37.5%, to account for the expected fraction of B mesons of a given charge. Observe that we did not apply a fragmentation function to our predictions in gs.…”

Measurement of theB+production cross section inpp¯collisions ats=Collaboration1 2007Phys. Rev. D481190View full textAdd to dashboardCite

“…The fragmentation model is based on the Peterson fragmentation function [7] with the ǫ parameter set to 0.006 according to fits to e + e − data [8].…”

InclusiveB-meson production ine+e−andBinnewies1, Kniehl2, Krämer3 1998Phys. Rev. D

“…Here, it was assumed that the fragmentations of b quarks into B mesons can be described by a Peterson fragmentation function (FF) [9] with ǫ = 0.006. This value for the ǫ parameter was extracted more than ten years ago from a global analysis of data on B-meson production in e + e − annihilation at PEP and PETRA [10], based on MC models which were then up-to-date. The result of this comparison is to be taken with a grain of salt, since the underlying description of b → B fragmentation is ad hoc and not backed up by model-independent data.…”