Multivariable evolution in final state parton shower algorithms
| Autor: | Zoltán Nagy, Davison E. Soper |
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| Rok vydání: | 2022 |
| Předmět: |
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Astrophysics::High Energy Astrophysical Phenomena FOS: Physical sciences parton final state High Energy Physics - Phenomenology dimension 2 High Energy Physics - Phenomenology (hep-ph) parton showers annihilation surface ddc:530 High Energy Physics::Experiment singularity collinear parton splitting splitting function |
| Zdroj: | Physical Review Physical review / D 105(5), 054012 (2022). doi:10.1103/PhysRevD.105.054012 |
| ISSN: | 2470-0029 2470-0010 |
| DOI: | 10.1103/physrevd.105.054012 |
| Popis: | Physical review / D 105(5), 054012 (2022). doi:10.1103/PhysRevD.105.054012 One can use more than one scale variable to specify the family of surfaces in the space of parton splitting parameters that define the evolution of a parton shower. Considering $e^+e^-$ annihilation, we use two variables, with shower evolution following a special path in this two dimensional space. In addition, we treat in a special way the part of the splitting function that has a soft emission singularity but no collinear singularity. This leads to certain advantages compared to the usual shower formulation with only one scale variable. Published by Inst., Melville, NY |
| Databáze: | OpenAIRE |
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