Open charm production at HERA

U. Karshon

doi:10.1016/S0920-5632(03)02327-2

Open charm production at HERA

U. Karshon^*

^*Corresponding author for this work

Department of Particle Physics and Astrophysics

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Inclusive charm meson production cross sections in the deep inelastic scattering and photoproduction regimes are compared with QCD leading and next-to-leading order (NLO) calculations. The NLO predictions are significantly below the data in some parts of the measured kinematic range. Angular distributions of dijet events with charm show clear evidence for the existence of charm originating from the incoming photon. The charm fragmentation function is measured for the first time at HERA. Various fragmentation ratios and the fragmentation fractions of the low-lying charm hadrons are determined and compared to previous e⁺e^- results.

Original language	English
Pages (from-to)	179-184
Number of pages	6
Journal	Nuclear Physics B - Proceedings Supplements
Volume	126
DOIs	https://doi.org/10.1016/S0920-5632(03)02327-2
Publication status	Published - Jan 2004

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics
Nuclear and High Energy Physics

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10.1016/S0920-5632(03)02327-2

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title = "Open charm production at HERA",

abstract = "Inclusive charm meson production cross sections in the deep inelastic scattering and photoproduction regimes are compared with QCD leading and next-to-leading order (NLO) calculations. The NLO predictions are significantly below the data in some parts of the measured kinematic range. Angular distributions of dijet events with charm show clear evidence for the existence of charm originating from the incoming photon. The charm fragmentation function is measured for the first time at HERA. Various fragmentation ratios and the fragmentation fractions of the low-lying charm hadrons are determined and compared to previous e+e- results.",

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N2 - Inclusive charm meson production cross sections in the deep inelastic scattering and photoproduction regimes are compared with QCD leading and next-to-leading order (NLO) calculations. The NLO predictions are significantly below the data in some parts of the measured kinematic range. Angular distributions of dijet events with charm show clear evidence for the existence of charm originating from the incoming photon. The charm fragmentation function is measured for the first time at HERA. Various fragmentation ratios and the fragmentation fractions of the low-lying charm hadrons are determined and compared to previous e+e- results.

AB - Inclusive charm meson production cross sections in the deep inelastic scattering and photoproduction regimes are compared with QCD leading and next-to-leading order (NLO) calculations. The NLO predictions are significantly below the data in some parts of the measured kinematic range. Angular distributions of dijet events with charm show clear evidence for the existence of charm originating from the incoming photon. The charm fragmentation function is measured for the first time at HERA. Various fragmentation ratios and the fragmentation fractions of the low-lying charm hadrons are determined and compared to previous e+e- results.

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U2 - 10.1016/S0920-5632(03)02327-2

DO - 10.1016/S0920-5632(03)02327-2

M3 - Article

SN - 0920-5632

VL - 126

SP - 179

EP - 184

JO - Nuclear Physics B - Proceedings Supplements

JF - Nuclear Physics B - Proceedings Supplements

ER -

Open charm production at HERA

Abstract

All Science Journal Classification (ASJC) codes

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