The inclusive production of D*+/- mesons in two-photon collisions is, measured with the ALEPH detector at e(+)e(-) centre-of-mass energies from 183 GeV to 209 GeV. A total of 360 +/- 27 D*+/- meson events are observed from an integrated luminosity of 699 pb(-1). Contributions from direct and single-resolved processes are separated using the ratio of the transverse momentum p(t)(D*+/-) of the D*+/- to the visible invariant mass W-vis of the event. Differential cross sections of D*+/- production as functions of p(t)(D*+/-) and the pseudorapidity \eta(D*+/-)\ are measured in the range 2 GeV/c < P-t(D*+/-) < 12 GeV/c and \eta(D*+/-)\ < 1.5. They are compared to next-to-leading order (NLO) perturbative QCD calculations. The extrapolation of the integrated visible D*+/- cross section to the total charm cross section, based on the Pythia Monte Carlo program, yields sigma(e(+)e(-) --> e(+)e(-)c (c) over bar)((roots)=197 GeV) = 731 +/- 74(stat) +/- 47(syst) +/- 157(extr) pb.

Measurement of the inclusive D*(+/-) production in gamma gamma collisions at LEP / A. HEISTER AND S., S., R., B., R., B., I., D.B., D., D., C., G., S., J., J. P., L., F., M., E., M., M. N., M., B. PIETRZYK AND B., T., G., B., S., B., M. P., C., M., C., J. M., C., E., F., M., F.B., Garrido, L.L., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 28:4(2003), pp. 437-449. [10.1140/epjc/s2003-01201-x]

Measurement of the inclusive D*(+/-) production in gamma gamma collisions at LEP

CREANZA, Donato Maria;DE FILIPPIS, Nicola;IASELLI, Giuseppe;Maggi, Giorgio Pietro;
2003

Abstract

The inclusive production of D*+/- mesons in two-photon collisions is, measured with the ALEPH detector at e(+)e(-) centre-of-mass energies from 183 GeV to 209 GeV. A total of 360 +/- 27 D*+/- meson events are observed from an integrated luminosity of 699 pb(-1). Contributions from direct and single-resolved processes are separated using the ratio of the transverse momentum p(t)(D*+/-) of the D*+/- to the visible invariant mass W-vis of the event. Differential cross sections of D*+/- production as functions of p(t)(D*+/-) and the pseudorapidity \eta(D*+/-)\ are measured in the range 2 GeV/c < P-t(D*+/-) < 12 GeV/c and \eta(D*+/-)\ < 1.5. They are compared to next-to-leading order (NLO) perturbative QCD calculations. The extrapolation of the integrated visible D*+/- cross section to the total charm cross section, based on the Pythia Monte Carlo program, yields sigma(e(+)e(-) --> e(+)e(-)c (c) over bar)((roots)=197 GeV) = 731 +/- 74(stat) +/- 47(syst) +/- 157(extr) pb.
2003
Measurement of the inclusive D*(+/-) production in gamma gamma collisions at LEP / A. HEISTER AND S., S., R., B., R., B., I., D.B., D., D., C., G., S., J., J. P., L., F., M., E., M., M. N., M., B. PIETRZYK AND B., T., G., B., S., B., M. P., C., M., C., J. M., C., E., F., M., F.B., Garrido, L.L., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 28:4(2003), pp. 437-449. [10.1140/epjc/s2003-01201-x]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/7276
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