29 research outputs found

    Measuring Parton Densities in the Pomeron

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    We present a program to measure the parton densities in the pomeron using diffractive deep inelastic scattering and diffractive photoproduction, and to test the resulting parton densities by applying them to other processes such as the diffractive production of jets in hadron-hadron collisions. Since QCD factorization has been predicted NOT to apply to hard diffractive scattering, this program of fitting and using parton densities might be expected to fail. Its success or failure will provide useful information on the space-time structure of the pomeron.Comment: Contains revisions based on Phys. Rev. D referee comments. RevTeX version 3, epsf, 31 pages. Uuencoded compressed postscript figures appended. Uncompressed postscript files available at ftp://ftp.phys.psu.edu/pub/preprint/psuth136

    Observation of Events with an Energetic Forward Neutron in Deep Inelastic Scattering at HERA

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    In deep inelastic neutral current scattering of positrons and protons at the center of mass energy of 300 GeV, we observe, with the ZEUS detector, events with a high energy neutron produced at very small scattering angles with respect to the proton direction. The events constitute a fixed fraction of the deep inelastic, neutral current event sample independent of Bjorken x and Q2 in the range 3 · 10-4 \u3c xBJ \u3c 6 · 10-3 and 10 \u3c Q2 \u3c 100 GeV2

    Anthropocentric Workplaces of the Future Approached through a New Holistic Vision

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    Part 1: Knowledge-Based SustainabilityInternational audienceThe human dimension is growing in importance in the cul- tural and scientific debate surrounding the arising of workplace and fac- tory of the future visions. Having people at the centre of the factory is already recognized as a main enabler for making the most out of their skills and capacities while at the same time achieving an environment that can both motivate employed workers and attract new skilled ones. The present paper proposes a novel concept aimed at defining new so- cially sustainable workplaces that adapt to workers’ anthropometric di- mensions within worker-aware production systems that are designed and operated to capitalize on workers’ skills and experience while at the same time promoting their development. Moreover it envisions the integration of the factory in the social and environmental context by promoting the creation and provision of worker-centric services that turn the factory from a society-affecting entity into an integration-promotion body
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