11 research outputs found
Comparison of voluntary food intake and palatability of commercial weight loss diets in healthy dogs and cats
Pandemic and post-pandemic influenza A (H1N1) seasons in a tertiary care university hospital—high rate of complications compared to previous influenza seasons
Two-particle azimuthal correlations as a probe of collective behaviour in deep inelastic ep scattering at HERA
Two-particle azimuthal correlations have been measured in neutral current deep inelastic ep scattering with virtuality Q2> 5 GeV2 at a centre-of-mass energy s√s = 318 GeV recorded with the ZEUS detector at HERA. The correlations of charged particles have been measured in the range of laboratory pseudorapidity −1.5 < η < 2.0 and transverse momentum 0.1 < pT< 5.0 GeV and event multiplicities Nch up to six times larger than the average 〈Nch〉 ≈ 5. The two-particle correlations have been measured in terms of the angular observables cn{2} = 〈〈cosnΔφ〉〉, where n is between 1 and 4 and ∆φ is the relative azimuthal angle between the two particles. Comparisons with available models of deep inelastic scattering, which are tuned to reproduce inclusive particle production, suggest that the measured two-particle correlations are dominated by contributions from multijet production. The correlations observed here do not indicate the kind of collective behaviour recently observed at the highest RHIC and LHC energies in high-multiplicity hadronic collisions.</p
Azimuthal correlations in photoproduction and deep inelastic ep scattering at HERA
Collective behaviour of final-state hadrons, and multiparton interactions are studied in high-multiplicity ep scattering at a centre-of-mass energy s = 318 GeV with the ZEUS detector at HERA. Two- and four-particle azimuthal correlations, as well as multiplicity, transverse momentum, and pseudorapidity distributions for charged-particle multiplicities Nch ≥ 20 are measured. The dependence of two-particle correlations on the virtuality of the exchanged photon shows a clear transition from photoproduction to neutral current deep inelastic scattering. For the multiplicities studied, neither the measurements in photoproduction processes nor those in neutral current deep inelastic scattering indicate significant collective behaviour of the kind observed in high-multiplicity hadronic collisions at RHIC and the LHC. Comparisons of PYTHIA predictions with the measurements in photoproduction strongly indicate the presence of multiparton interactions from hadronic fluctuations of the exchanged photon
Azimuthal correlations in photoproduction and deep inelastic ep scattering at HERA
Collective behaviour of final-state hadrons, and multiparton interactions are studied in high-multiplicity ep scattering at a centre-of-mass energy s = 318 GeV with the ZEUS detector at HERA. Two- and four-particle azimuthal correlations, as well as multiplicity, transverse momentum, and pseudorapidity distributions for charged-particle multiplicities Nch ≥ 20 are measured. The dependence of two-particle correlations on the virtuality of the exchanged photon shows a clear transition from photoproduction to neutral current deep inelastic scattering. For the multiplicities studied, neither the measurements in photoproduction processes nor those in neutral current deep inelastic scattering indicate significant collective behaviour of the kind observed in high-multiplicity hadronic collisions at RHIC and the LHC. Comparisons of PYTHIA predictions with the measurements in photoproduction strongly indicate the presence of multiparton interactions from hadronic fluctuations of the exchanged photon
Factors associated with overweight cats successfully completing a diet-based weight loss programme: an observational study
Success of a weight loss plan for overweight dogs: The results of an international weight loss study
Azimuthal correlations in photoproduction and deep inelastic ep scattering at HERA
Collective behaviour of final-state hadrons, and multiparton interactions are
studied in high-multiplicity scattering at a centre-of-mass energy
GeV with the ZEUS detector at HERA. Two- and four-particle
azimuthal correlations, as well as multiplicity, transverse momentum, and
pseudorapidity distributions for charged-particle multiplicities are measured. The dependence of two-particle correlations on the
virtuality of the exchanged photon shows a clear transition from
photoproduction to neutral current deep inelastic scattering. For the
multiplicities studied, neither the measurements in photoproduction processes
nor those in neutral current deep inelastic scattering indicate significant
collective behaviour of the kind observed in high-multiplicity hadronic
collisions at RHIC and the LHC. Comparisons of PYTHIA predictions with the
measurements in photoproduction strongly indicate the presence of multiparton
interactions from hadronic fluctuations of the exchanged photon.Comment: 27 pages, 9 figures. Additional material included as an ancillary
file for this arXiv entr
Two-particle azimuthal correlations as a probe of collective behaviour in deep inelastic ep scattering at HERA
Two-particle azimuthal correlations have been measured in neutral current deep inelastic ep scattering with virtuality Q2> 5 GeV2 at a centre-of-mass energy s = 318 GeV recorded with the ZEUS detector at HERA. The correlations of charged particles have been measured in the range of laboratory pseudorapidity 121.5 < \u3b7 < 2.0 and transverse momentum 0.1 < pT< 5.0 GeV and event multiplicities Nch up to six times larger than the average \u3008Nch\u3009 48 5. The two-particle correlations have been measured in terms of the angular observables cn{2} = \u3008\u3008cosn\u394\u3c6\u3009\u3009, where n is between 1 and 4 and 06\u3c6 is the relative azimuthal angle between the two particles. Comparisons with available models of deep inelastic scattering, which are tuned to reproduce inclusive particle production, suggest that the measured two-particle correlations are dominated by contributions from multijet production. The correlations observed here do not indicate the kind of collective behaviour recently observed at the highest RHIC and LHC energies in high-multiplicity hadronic collisions