Away-from-jet energy flow
| Autor: | Giuseppe Marchesini, Andrea Banfi, G. Smye |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2002 |
| Předmět: |
Physics
Quantum chromodynamics Nuclear and High Energy Physics Particle physics Logarithm Numerical analysis High Energy Physics::Phenomenology FOS: Physical sciences Observable Jet (particle physics) High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph) Energy flow Limit (mathematics) Ideal (ring theory) |
| Zdroj: | Scopus-Elsevier |
| Popis: | We consider interjet observables in hard QCD processes given by the energy flow E_out in a region away from all hard jets. Here the QCD radiation is depleted (E_out << Q), and therefore these observables provide ideal means to study non-perturbative effects. We derive an evolution equation (in the large N_c limit) which resums, for large Q/E_out, all leading terms arising from large angle soft emission (double logarithms are absent). We discuss the analytical features of the result and identify universal and geometry-dependent contributions. Our analysis confirms features found using numerical methods by Dasgupta and Salam. 29 pages, 2 figures, JHEP class included. Paper version |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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