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Dispersion relations for meson-proton and proton-proton forward elastic scattering ; Cudell, Jean-René ; in Cudell, Jean-René; Lansberg, Jean-Philippe; Mancusi, Davide (Eds.) 30 Years of Strong Interactions: a Three-Day Meeting in Honour of Joseph Cugnon and Hans-Jürgen Pirner (2012) An analysis of the data on forward $pp, \bar pp, \pi^{\pm}p$ and $K^{\pm}p$ scattering is performed making use of the single- and double-subtraction integral and comparing with derivative dispersion ... [more ▼] An analysis of the data on forward $pp, \bar pp, \pi^{\pm}p$ and $K^{\pm}p$ scattering is performed making use of the single- and double-subtraction integral and comparing with derivative dispersion relations for amplitudes. Various pomeron and odderon models for the total cross sections are considered and compared. The real part of the amplitude is calculated via dispersion relations. It is shown that the integral dispersion relations lead to a better description of the data for $\sqrt{s}>$5 GeV. Predictions of the considered models for the TOTEM experiment at LHC energies are given [less ▲] Detailed reference viewed: 13 (1 ULg)A dataset for hadron elastic scattering Cudell, Jean-René ; ; Textual, factual or bibliographical database (2007) Detailed reference viewed: 40 (8 ULg)The soft and the hard pomerons: elastic scattering and unitarisation Cudell, Jean-René ; ; et al in Bartels, J. (Ed.) 12th International Conference On Elastic And Diffractive Scattering: Forward Physics And QCD (2007) Detailed reference viewed: 2 (0 ULg)Soft and hard Pomerons in hadron elastic scattering at small t Cudell, Jean-René ; ; in Physical Review. D (2006), 73(3), We consider simple-pole descriptions of soft elastic scattering for pp, (p) over barp, pi(+/-)p and K(+/-)p. We work at t and s small enough for rescatterings to be effectively absorbed in a simple-pole ... [more ▼] We consider simple-pole descriptions of soft elastic scattering for pp, (p) over barp, pi(+/-)p and K(+/-)p. We work at t and s small enough for rescatterings to be effectively absorbed in a simple-pole parametrization, and allow for the presence of a hard Pomeron. After building and discussing an exhaustive dataset, we show that simple poles provide an excellent description of the data in the region -0.5 GeV2<= t <= -0.1 GeV2, 6 GeV <= root s <= 63 GeV. We show that new form factors have to be used, and get information on the trajectories of the soft and hard Pomerons. [less ▲] Detailed reference viewed: 11 (4 ULg)Soft data and the hard pomeron Cudell, Jean-René ; ; et al in Nuclear Physics B-Proceedings Supplements (2006, February), 152 We show that the introduction of an additional, hard, singularity in soft forward amplitudes enables one to improve considerably the fits using a simple-pole structure for the soft pomeron. Detailed reference viewed: 18 (8 ULg)Direct extraction of hadronic form factors from elastic-scattering data ; Cudell, Jean-René ; in Nuclear Physics B-Proceedings Supplements (2005, September), 146 Non-forward elastic hadron-scattering data are collected and analysed within the Regge approach. Through an analysis of the data in small bins in t, we have directly extracted the pomeron trajectory and ... [more ▼] Non-forward elastic hadron-scattering data are collected and analysed within the Regge approach. Through an analysis of the data in small bins in t, we have directly extracted the pomeron trajectory and the hadronic form factors (or reggeon couplings). We found higher values than usually used for the intercept and for the slope of the soft pomeron trajectory. The presence of zeros in t for the effective hadronic form factors is emphasised. [less ▲] Detailed reference viewed: 14 (1 ULg)Hard pomeron contribution to forward elastic scattering Cudell, Jean-René ; ; et al in Nicolescu, B. (Ed.) Conference On Elastic And Diffractive Scattering: Towards High Energy Frontiers: The 20th Anniversary Of The Blois Workshops (2005) Detailed reference viewed: 11 (1 ULg)Elastic meson nucleon and nucleon nucleon scattering: Models vs. all available data ; Cudell, Jean-René ; in Nicolescu, B. (Ed.) 11th International Conference On Elastic And Diffractive Scattering: Towards High Energy Frontiers: The 20th Anniversary Of The Blois Workshops (2005) Detailed reference viewed: 13 (0 ULg)t-channel unitarity and photon cross sections Cudell, Jean-René ; ; in Nuclear Physics B (2004), 682(1-2), 391-420 We analyse the consequences of t-channel unitarity for the photon hadronic cross sections. We show that gamma((*))p and gamma((*))gamma((*)) elastic amplitudes must include the complex-j plane ... [more ▼] We analyse the consequences of t-channel unitarity for the photon hadronic cross sections. We show that gamma((*))p and gamma((*))gamma((*)) elastic amplitudes must include the complex-j plane singularities associated with hadronic elastic amplitudes, and give the characteristics of possible new singularities. We also show that several different models of hadronic total cross sections can be used to predict the LEP data from the HERA measurements. (C) 2004 Elsevier B.V. All rights reserved. [less ▲] Detailed reference viewed: 17 (4 ULg)Integral and derivative dispersion relations, analysis of the forward scattering data ; Cudell, Jean-René ; in Eur. Phys. J. (2004), C33 Detailed reference viewed: 8 (0 ULg)Integral and derivative dispersion relations in the analysis of the data on p p and anti-p p forward scattering Cudell, Jean-René ; ; in Ukrainian Journal of Physics (2003), 48(Nos. 11- 12, 2003), Detailed reference viewed: 9 (0 ULg)Forward observables at RHIC, the Tevatron Run II and the LHC Cudell, Jean-René ; ; et al in Fiore, R.; Jenkowszky, L. (Eds.) DIFFRACTION 2002, Interpretation of the New Diffractive Phenomena in Quantum Chromodynamics and in the S-Matrix Theory (2002) We present predictions on the total cross sections and on the ratio of the real part to the imaginary part of the elastic amplitude (rho parameter) for present and future pp and pbar p colliders, and on ... [more ▼] We present predictions on the total cross sections and on the ratio of the real part to the imaginary part of the elastic amplitude (rho parameter) for present and future pp and pbar p colliders, and on total cross sections for gamma p -> hadrons at cosmic-ray energies and for gamma gamma -> hadrons up to sqrt(s)=1 TeV. These predictions are based on a study of many possible analytic parametrisations and invoke the current hadronic dataset at t=0. The uncertainties on total cross sections, including the systematic theoretical errors, reach 1% at RHIC, 3% at the Tevatron, and 10% at the LHC, whereas those on the rho parameter are respectively 10%, 17%, and 26%. [less ▲] Detailed reference viewed: 24 (7 ULg)Consequences of t-channel unitarity for the interaction of real and virtual photons at high energies ; Cudell, Jean-René ; in Jenkovsky, L.; Fiore, R. (Eds.) DIFFRACTION 2002: INTERPRETATION OF THE NEW DIFFRACTIVE PHENOMENA IN QUANTUM CHROMODYNAMICS AND IN THE S - MATRIX THEORY (2002) Detailed reference viewed: 13 (0 ULg)Analytic amplitudes for hadronic forward scattering: COMPETE update ; Cudell, Jean-René ; et al in Bentvelsen, S.; de Jong, P.; Koch, J. (Eds.) et al ICHEP 2002 (2002) Detailed reference viewed: 5 (0 ULg)Overview of the COMPETE program. ((V)) ; Cudell, Jean-René ; et al in Jenkovsky, L.; Fiore, R. (Eds.) DIFFRACTION 2002: INTERPRETATION OF THE NEW DIFFRACTIVE PHENOMENA IN QUANTUM CHROMODYNAMICS AND IN THE S - MATRIX THEORY (2002) Detailed reference viewed: 35 (2 ULg)Consequences of t-channel unitarity for gamma(*) p and gamma(*) gamma(*) amplitudes Cudell, Jean-René ; ; in Bentvelsen, S.; de Jong, P.; Koch, J. (Eds.) et al ICHEP 2002 (2002) Detailed reference viewed: 7 (0 ULg) |
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