Probing the Structure of Jets: Factorized and Resummed Angularity Distributions in SCET
| dc.creator | Lee, Christopher | |
| dc.creator | Hornig, Andrew | |
| dc.creator | Ovanesyan, Grigory | |
| dc.date | 2009-05-04 | |
| dc.date.accessioned | 2026-07-07T13:11:14Z | |
| dc.date.available | 2026-07-07T13:11:14Z | |
| dc.description | Using the framework of soft-collinear effective theory (SCET), we factorize and calculate $e^+e^-$ angularity distributions, including perturbative resummation and the incorporation of a universal model for the nonperturbative soft function. Angularities $τ_a$ are a class of event shapes varying in their sensitivity to the substructure of jets in the final state, controlled by a continuous parameter $a<2$. We calculate the jet and soft functions in factorized angularity distributions for all $a<1$ to first order in the strong coupling $α_s$ and resum large logarithms to next-to-leading logarithmic (NLL) accuracy. We employ a universal model for the nonperturbative soft function with a gap parameter which cancels the renormalon ambiguity in the partonic soft function. | |
| dc.description | 8 pages, 2 figures. Contribution to the proceedings of EFT'09, International Workshop on Effective Field Theories: from the Pion to the Upsilon, 2-6 February 2009, Valencia (Spain) | |
| dc.identifier | https://arxiv.org/abs/0905.0168 | |
| dc.identifier | http://arxiv.org/abs/0905.0168 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/229226 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Probing the Structure of Jets: Factorized and Resummed Angularity Distributions in SCET | |
| dc.type | text |