E. A. Razuvaev

Publications (6)7.37 Total impact

• Source

  Available from: Vv Ezhela

  Chapter: Forward Observables at RHIC, the Tevatron Run II and the LHC

  J. R. Cudell, E. Martynov, K. Kang, V. V. Ezhela, Yu. V. Kuyanov, S. B. Lugovsky, E. A. Razuvaev, N. P. Tkachenko, P. Gauron, B. Nicolescu
  [show abstract] [hide abstract]
  ABSTRACT: We present predictions on the total cross sections and on the ratio of the real part to the imaginary part of the elastic amplitude (ρ parameter) for present and future pp and p $ \bar p $ \bar p colliders, and on total cross sections for γp → hadrons at cosmic-ray energies and for γγ → hadrons up to √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 theoret ical errors, reach 1% at RHIC, 3% at the Tevatron, and 10% at the LHC, whereas those on the ρ parameter are respectively 10%, 17%, and 26%.
  06/2011: pages 63-72;
• Source

  Available from: Oleg Zenin

  Article: Overview of the COMPETE Program

  V. V. Ezhela, J. R. Cudell, P. Gauron, K. Kang, S. K. Kang, Yu. V. Kuyanov, A. Lengyel, K.S. Lugovsky, S. B. Lugovsky, V. S. Lugovsky, E. Martynov, B. Nicolescu, E. A. Razuvaev, M. Yu. Sapunov, O. Selyugin, N. P. Tkachenko, M. R. Whalley, O. V. Zenin
  [show abstract] [hide abstract]
  ABSTRACT: Nowadays, scientific databases have become the bread-and-butter of particle physicists. These databases must be maintained and checked repeatedly to insure the accuracy of their content. The COMPETE collaboration aims at motivating data maintenance via the interfacing of theory and experiment at the database level. The database concept then needs to be supplemented by a "model-base". Such an object enables one not only to decide what the best description may be, but also to discern what potential problems exist in the data. The systematization of such a cross-fertilization between models and data results in the "object of knowledge" that is the point at which all existing information resources on a given problem could converge. There are many advantages to such a global approach. First of all, the maintenance of a data set is not a static task: it needs to be motivated by physics. The second advantage is that one can have a common testing ground for theories and models. Thirdly, an extensive theoretical database can be used to plan new experiments and to predict various quantities. Finally, as new data come in, one can very quickly decide on their theoretical impact, and hence immediately evaluate the need for new physics ideas. As we want to treat a large amount of data and many models, computer technology constitutes an important part of our activity. We have concentrated on the elaboration of artificial intelligence decision-making algorithms, as well as on the delivery of computer tools for the end-user. Further linkage with existing databases, such as PDG, COMPAS, and HEPDATA is being developed or planned.
  01/2003;
• Source

  Available from: Vv Ezhela

  Article: Forward observables at RHIC, the Tevatron run II and the LHC

  J. R. Cudell, V. V. Ezhela, P. Gauron, K. Kang, Yu. V. Kuyanov, S. B. Lugovsky, E. Martynov, B. Nicolescu, E. A. Razuvaev, N. P. Tkachenko
  [show abstract] [hide abstract]
  ABSTRACT: 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%.
  01/2003;
• Source

  Available from: Vv Ezhela

  Article: Benchmarks for the forward observables at RHIC, the Tevatron-run II, and the LHC.

  J R Cudell, V V Ezhela, P Gauron, K Kang, Yu V Kuyanov, S B Lugovsky, E Martynov, B Nicolescu, E A Razuvaev, N P Tkachenko
  [show abstract] [hide abstract]
  ABSTRACT: We present predictions on the total cross sections and on the rho parameter for present and future pp and (-)pp colliders, and on total cross sections for gammap-->hadrons at cosmic-ray energies and for gammagamma-->hadrons up to sqrt[s]=1 TeV. These predictions are based on an extensive study of possible analytic parametrizations invoking the largest hadronic dataset available at t=0. The uncertainties on total cross sections reach 1.9% at the Relativistic Heavy Ion Collider, 3.1% at the Tevatron, and 4.8% at the Large Hadron Collider, whereas those on the rho parameter are, respectively, 5.4%, 5.2%, and 5.4%.
  Physical Review Letters 11/2002; 89(20):201801. · 7.37 Impact Factor
• Source

  Available from: Vv Ezhela

  Article: Analytic Amplitudes for Hadronic Forward Scattering : COMPETE Update

  B. Nicolescu, J. R. Cudell, V. V. Ezhela, P. Gauron, K. Kang, Yu. V. Kuyanov, S. B. Lugovsky, E. Martynov, E. A. Razuvaev, N. P. Tkachenko
  [show abstract] [hide abstract]
  ABSTRACT: We consider several classes of analytic parametrizations of hadronic scattering amplitudes, and compare their predictions to all available forward data in hadron-hadron, gamma-p and gamma-gamma reactions. Although these parametrizations are very close for SQRTs larger than 9 GeV, it turns out that they differ markedly at low energy, where a universal Pomeron term like ln**2 s enables one to extend the fit down to SQRTs equal to 4 GeV. 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 antipp colliders, and on total cross sections for gamma-p into hadrons at cosmic-ray energies and for gamma-gamma into hadrons up to SQRTs equal to 1 TeV. Comment: 3 pages, 3 tables. To be published in the Proceedings of the 31st International Conference on High Energy Physics (ICHEP 2002), Amsterdam, The Netherlands, 24-31 July 2002
  09/2002;
• Article: Analytic amplitudes for hadronic forward scattering: COMPETE update

  B. Nicolescu, J.R. Cudell, V.V. Ezhela, P. Gauron, K. Kang, Yu.V. Kuyanov, S.B. Lugovsky, E. Martynov, E.A. Razuvaev, N.P. Tkachenko
  [show abstract] [hide abstract]
  ABSTRACT: We consider several classes of analytic parametrizations of hadronic scattering amplitudes, and compare their predictions to all available forward data (. Although these parametrizations are very close for √s ≥ 9 GeV, it turns out that they differ markedly at low energy, where a universal Pomeron term ∼ ln2s enables one to extend the fit down to √s = 4 GeV. We present predictions on the total cross sections and on the ratio of the real part to the imaginary part of the elastic amplitude (ϱ parameter) for present and future pp and colliders, and on the total cross sections for γp → hadrons at cosmic-ray energies and for γγ → hadrons up to √s = 1 TeV.
  Nuclear Physics B - Proceedings Supplements.