HQPRECISION · Precision study of heavy quark production at high energy colliders
6РП — Действия „Мария Кюри“
- Период
- 2006-02-01 → 2008-01-31
- Финансиране от ЕС
- 180 620 €
- Участници
- 1
- Схема
- EIF
Линиите свързват координатора с партньорите. За проекти отпреди 2014 г. CORDIS не винаги дава точни координати. Тези точки са на ниво град или държава.
Накратко на български
Производството на тежки кварки при сблъсъци с висока енергия се анализира чрез нови методи за изчисляване на сложни физични процеси. Това помага за по-точното тълкуване на данните от Големия адронен колайдер.
Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.
Резултати накратко
Final Activity Report Summary - HQPRECISION (Precision study of heavy quark production at high energy colliders)
The upcoming LHC collider physics programme will provide a wealth of precision data on a multitude of different scattering reactions. To interpret these data, a precise theoretical understanding of the underlying reactions is mandatory. Such precision calculations require the determination of scattering amplitudes in quantum field theory, which can only be accomplished in the form of a perturbation theory expansion. Already at the second order in perturbation theory, the resulting expressions turn out to be highly complex, often preventing a direct evaluation. In the project carried out here, a variety of new methods for the computation of perturbative corrections to scattering amplitudes were developed and applied. Most prominently, very important contributions were made to the unitarity-cut method, which allows the systematic reconstruction of complicated scattering amplitudes in terms of much simpler ingredients. This method was applied to obtain very compact expressions for previously unknown multi-photon and multi-gluon amplitudes, relevant for collider physics studies.
Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз
Цел на проекта
Heavy quark production is intensively studied at present and future elementary particle physics experiment, providing not only a test for perturbative QCD, but also a background to monitor for discovering new-physics processes. Several dedicated experiments were recently commissioned to study bottom-quark production, and the measurement of top-quark production is one of the main objectives of the high energy collision physics program at the Fermilab Tevatron and CERN LHC. At present, the theoretical description of heavy quark production within the framework of perturbative quantum field theory is accurate to about 15 percent, which is insufficient for precision studies. In this project we propose to compute the currently completely unknown second order QCD corrections to heavy quark production at high energy collisions, and to implement them in computer programs which can be used for precise analysis of experimental data.
Оригинален текст от CORDIS (на английски).
Участници
- UNIVERSITAET ZUERICH · ZURICHКоординаторНиво градШвейцария
Връзки
Данни: CORDIS, © Европейски съюз