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Calendar of Physics Talks Vienna
| Factorization of non-global LHC observables Part 2: The Glauber series |
| Speaker: | Matthias Neubert (University of Mainz) |
| Abstract: | We present a systematic formalism based on a factorization theorem in Soft-Collinear Effective Theory (SCET) to describe non-global observables at hadron colliders, such as gap-between-jets cross sections. The cross sections are factorized into convolutions of hard functions, capturing the dependence on the partonic center-of-mass energy $\sqrt{\hat s}$, and low-energy matrix elements, which are sensitive to the low scale $Q_0\ll\sqrt{\hat s}$ characteristic of the veto imposed on energetic emissions into the gap region between the jets. The scale evolution of both objects is governed by a renormalization-group equation, whose form we derive. With the help of this equation, we develop an EFT-based approach to the resummation of so-called âÂÂnon-global logarithms'', including the âÂÂsuper-leading logarithmsâ discovered by Forshaw et al. in 2006, which only appear in hadron-collider processes. |
| Date: | Tue, 21.05.2024 |
| Time: | 16:15 |
| Duration: | 60 min |
| Location: | Erwin-Schroedinger-Hoersaal, Boltzmanngasse 5, 5. Stock |
| Contact: | A. Hoang, M. Procura |
| Speaker: | Iva Brezinova (TU Wien) |
| Abstract: | folgt |
| Date: | Fri, 24.05.2024 |
| Time: | 10:00 |
| Duration: | 45 min |
| Location: | Helmut Rauch Hörsaal ATI |
| Contact: | Julian Leonard |
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