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The Charm Fragmentation Function in DIS |
| Reference |
Z. Rurikova, presented at FRAG2008, Winter 2008 |
| Document |
Conference paper or talk
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| Figures |
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(4a)
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(5a)
(5b)
(6a)
(6a)
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(7b)
(9)
(Results)
(Chi2zJetRAPGAP_Kartvelishvili)
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| Contact |
Z. Rurikova, J. Bracinik, G. Grindhammer |
| Abstract |
The charm fragmentation function is measured in deep-inelastic
e-p collisions at HERA.Two different approaches are used to determine
the energy fraction transferred from the charm quark to the charm meson.
In the first approach, the energy of the quark is approximated
by the energy of the jet which contains the reconstructed D*-meson.
In the second approach, the event is divided into two hemispheres.
The energy in the hemisphere containing the D*-meson is used as an
approximation of that of the charm quark.
The fractional energy distribution of the D*-mesons, corrected for
detector effects, are compared to predictions of QCD-inspired Monte Carlo
models. Thus, parameters of various fragmentation functions are determined. |
| Comments | this updates former preliminary 05-074 |
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