production in deep inelastic scattering at HERA
نویسندگان
چکیده
منابع مشابه
Deep Inelastic Scattering at HERA
Inclusive production of D(2010) mesons in deep inelastic scattering has been measured using ep and ep data obtained with the ZEUS detector at HERA using integrated luminosities of 16.7 and 65.2pb, respectively. The decay channel D → Dπ with D → Kπ and corresponding antiparticle decays were used to identify D mesons. The D cross sections in ep and ep interactions agree with NLO QCD predictions, ...
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Two-jet cross sections in deep inelastic scattering at HERA are calculated in next-to-leading order. The importance of higher order corrections and recombination scheme dependencies is studied for various jetalgorithms. Some implications for the determination of αs(μ 2 R), the determination of the gluon density and the associated forward jet production in the low x regime at HERA are briefly di...
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We perform a calculation on the polarization of J/ψ production in deep inelastic scattering in the HERA energy range. For the inclusive production distributions, we find that the color-singlet contributions are consistent with the experimental data in the major region of z (z > 0.4). Only in low z regions, there are some hints of the need of the color-octet contributions to describe the experim...
متن کاملThree-jet production in diffractive deep inelastic scattering at HERA
Three-jet production in the reaction ep → eXp has been studied with the ZEUS detector at HERA using an integrated luminosity of 42.74 pb. The data were measured in the kinematic region 5 < Q < 100 GeV, 200 < W < 250 GeV and 23 < MX < 40 GeV. The diffractive signal was selected by requiring a large rapidity gap in the outgoing proton direction. Jets were reconstructed in the centre-of-mass syste...
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The beauty production cross section for deep inelastic scattering events with at least one hard jet in the Breit frame together with a muon has been measured, for photon virtualities Q > 2 GeV, with the ZEUS detector at HERA using integrated luminosity of 72 pb. The total visible cross section is σbb(ep → e jet μ X) = 40.9 ± 5.7 (stat.) −4.4(syst.) pb. The next-to-leading order QCD prediction l...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1997
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(97)00847-2