GRANIITTI: A Monte Carlo Event Generator for High Energy Diffraction

التفاصيل البيبلوغرافية
العنوان: GRANIITTI: A Monte Carlo Event Generator for High Energy Diffraction
المؤلفون: Mieskolainen, Mikael
سنة النشر: 2019
المجموعة: High Energy Physics - Experiment
High Energy Physics - Phenomenology
مصطلحات موضوعية: High Energy Physics - Phenomenology, High Energy Physics - Experiment
الوصف: We describe the physics and computational power of GRANIITTI Monte Carlo event generator, a new fully multithreaded engine designed for high energy diffraction, written in modern C++. The emphasis is especially on the low-mass domain of central exclusive processes of the S-matrix, where exotic QCD phenomena such as glueballs are expected and holographic dualities with gravity may be tested. The generator includes photon-photon, photon-pomeron, pomeron-pomeron, Durham QCD model and Tensor pomeron model type scattering amplitudes and advanced spin analysis tools. The generator combines a full parametric resonance spectrum with continuum interference and forward + central spin correlations together with event-by-event eikonal screening loop and forward proton excitation kinematics. We demonstrate the state-of-the-art capabilities and show how the enigmatic `glueball filter' observable is driven by spin polarization.
Comment: 81 pages, 25 figures, v2: minor modifications
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/1910.06300
رقم الأكسشن: edsarx.1910.06300
قاعدة البيانات: arXiv