D* Meson Production in Deep-Inelastic Diffractive Interactions at HERA

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dc.creatorH1 Collaboration
dc.creatorAdloff, C.
dc.date2001-08-30
dc.date.accessioned2026-07-07T11:46:34Z
dc.date.available2026-07-07T11:46:34Z
dc.descriptionA measurement is presented of the cross section for D* meson production in diffractive deep-inelastic scattering for the first time at HERA. The cross section is given for the process ep -> eXY, where the system X contains at least one D* meson and is separated by a large rapidity gap from a low mass proton remnant system Y. The cross section is presented in the diffractive deep-inelastic region defined by 2< Q^2 < 100 GeV^2, 0.05 < y < 0.7, x_pom < 0.04, M_Y < 1.6 GeV and |t| < 1 GeV^2. The D* mesons are restricted to the range ptD* > 2 GeV and |η_D* | < 1.5. The cross section is found to be 246+-54+-56 pb and forms about 6% of the corresponding inclusive D* cross section. The cross section is presented as a function of various kinematic variables, including z_pom^obs which is an estimate of the fraction of the momentum of the diffractive exchange carried by the parton entering the hard-subprocess. The data show a large component of the cross section at low z_pom^obs where the contribution of the Boson-Gluon-Fusion process is expected to dominate. The data are compared with several QCD--based calculations.
dc.description18 pages, 4 figures, 1 table
dc.identifierhttps://arxiv.org/abs/hep-ex/0108047
dc.identifierhttp://arxiv.org/abs/hep-ex/0108047
dc.identifierPhys.Lett.B520:191-203,2001
dc.identifierdoi:10.1016/S0370-2693(01)01155-8
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/202270
dc.subjectHigh Energy Physics - Experiment
dc.titleD* Meson Production in Deep-Inelastic Diffractive Interactions at HERA
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