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Measurement of the inclusive D$^*\pm$ production in $\gamma\gamma$ collisions at LEP2
The inclusive production of D$^{*\pm}$ mesons in two-photon collisions is measured with the ALEPH detector at center-of-mass energies from 183$\unit{GeV}$-209$\unit{GeV}$. Contributions from direct and single resolved processes are separated using event shape variables. Differential cross sections o...
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Lenguaje: | eng |
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2002
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Acceso en línea: | http://cds.cern.ch/record/644883 |
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author | CERN. Geneva. ALEPH |
author_facet | CERN. Geneva. ALEPH |
author_sort | CERN. Geneva. ALEPH |
collection | CERN |
description | The inclusive production of D$^{*\pm}$ mesons in two-photon collisions is measured with the ALEPH detector at center-of-mass energies from 183$\unit{GeV}$-209$\unit{GeV}$. Contributions from direct and single resolved processes are separated using event shape variables. Differential cross sections of D$^{*\pm}$ production as function of the transverse momentum $p_{\rm t}$ and of the pseudorapidity $\eta$ of the D$^{*\pm}$ meson are measured in the range $ 2\unit{GeV}/c < p_{\rm t}(D^{*\pm}) < 12\unit{GeV}/c $ and $|\eta(D^{*\pm})| < 1.5 $ and are compared to next-to-leading order (NLO) perturbative QCD calculations. The extrapolation of the integrated visible D$^{*\pm}$ cross section to the total charm cross section is performed. |
id | cern-644883 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2002 |
record_format | invenio |
spelling | cern-6448832022-01-27T08:58:17Zhttp://cds.cern.ch/record/644883engCERN. Geneva. ALEPHMeasurement of the inclusive D$^*\pm$ production in $\gamma\gamma$ collisions at LEP2XXThe inclusive production of D$^{*\pm}$ mesons in two-photon collisions is measured with the ALEPH detector at center-of-mass energies from 183$\unit{GeV}$-209$\unit{GeV}$. Contributions from direct and single resolved processes are separated using event shape variables. Differential cross sections of D$^{*\pm}$ production as function of the transverse momentum $p_{\rm t}$ and of the pseudorapidity $\eta$ of the D$^{*\pm}$ meson are measured in the range $ 2\unit{GeV}/c < p_{\rm t}(D^{*\pm}) < 12\unit{GeV}/c $ and $|\eta(D^{*\pm})| < 1.5 $ and are compared to next-to-leading order (NLO) perturbative QCD calculations. The extrapolation of the integrated visible D$^{*\pm}$ cross section to the total charm cross section is performed.CERN-ALEPH-2002-022CERN-ALEPH-CONF-2002-011oai:cds.cern.ch:6448832002-07-08 |
spellingShingle | XX CERN. Geneva. ALEPH Measurement of the inclusive D$^*\pm$ production in $\gamma\gamma$ collisions at LEP2 |
title | Measurement of the inclusive D$^*\pm$ production in $\gamma\gamma$ collisions at LEP2 |
title_full | Measurement of the inclusive D$^*\pm$ production in $\gamma\gamma$ collisions at LEP2 |
title_fullStr | Measurement of the inclusive D$^*\pm$ production in $\gamma\gamma$ collisions at LEP2 |
title_full_unstemmed | Measurement of the inclusive D$^*\pm$ production in $\gamma\gamma$ collisions at LEP2 |
title_short | Measurement of the inclusive D$^*\pm$ production in $\gamma\gamma$ collisions at LEP2 |
title_sort | measurement of the inclusive d$^*\pm$ production in $\gamma\gamma$ collisions at lep2 |
topic | XX |
url | http://cds.cern.ch/record/644883 |
work_keys_str_mv | AT cerngenevaaleph measurementoftheinclusivedpmproductioningammagammacollisionsatlep2 |