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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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Autor principal: CERN. Geneva. ALEPH
Lenguaje:eng
Publicado: 2002
Materias:
XX
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
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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