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Hard dif f raction: achivements and questions

Hard dif f raction: achivements and questions I. Satsunkevich, E. Kokoulina, L. Jenkovszky, Dz. Shoukavy, S. Yanush. Abstract.

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Hard dif f raction: achivements and questions

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  1. Hard diffraction: achivements and questions I. Satsunkevich, E. Kokoulina, L. Jenkovszky, Dz. Shoukavy, S. Yanush Gomel, 2009

  2. Abstract • Diffraction in high energy physics is the old subject but diffractive hard scattering is a rather new one. It was discovered 20 years ago. This discovery renewed interest to old diffraction which people had since 50-ties last century. We discuss firstly needed theoretical models and experimental results that have shown new striking diffractive effects. Main new peculiarity of modern diffractions is big rapidity gaps of jet and Z/W productions in p-antip ( pp) reactions and deep inelastic lp- scattering. These experimental results can be described through the exchange of a pomeron with the specific parton content though the pomeron conception is problematic here. But now people even try to use these results in preparing new way (central exclusive production) to search for Higgs boson at Large Hadron Collider. Gomel, 2009

  3. Lego-Plot 1 Gomel, 2009

  4. Lego-Plot 2 Gomel, 2009

  5. Lego-Plot 3 Gomel, 2009

  6. Lego-Plot 4 Gomel, 2009

  7. Hadron scattering Gomel, 2009

  8. Longitudinal momentum Gomel, 2009

  9. Diffractive hard scattering and DIS ep Gomel, 2009

  10. Rapidity distribution 1 Gomel, 2009

  11. Rapidity distribution 2 Gomel, 2009

  12. Single diffraction Gomel, 2009

  13. Jet production QCD Regge Gomel, 2009

  14. 2 g and systems Sum rules a, b, c Gomel, 2009

  15. Particle collisions Gomel, 2009

  16. Diffractive DIS Parton factorization Gomel, 2009

  17. Central diffraction Gomel, 2009

  18. Electromagnetic diffraction • γγ – fusion H • Pomeron-pomeron - fusion 0.6 fb 0.9 fb Gomel, 2009

  19. Double diffraction Higgs production Gomel, 2009

  20. Survival probability Gomel, 2009

  21. Thanks for your attention! Gomel, 2009

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