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Title
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A parton branching algorithm with transverse-momentum-dependent splitting functions
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Author
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Abstract
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| Parton branching methods underlie the Monte Carlo (MC) generators, being therefore of key importance for obtaining high-energy physics predic-tions. We construct a new parton branching algorithm which, for the first time, incorporates the off-shell, transverse-momentum-dependent (TMD) splitting functions, defined from the high-energy limit of partonic decay amplitudes. Based on these TMD splitting functions, we construct a new TMD Sudakov form factor. We present the first MC implementation of the algorithm for the evolution of the TMD and integrated parton distri-bution functions (PDFs). We use this implementation to evaluate small-x corrections to the distributions and verify the momentum sum rule. The presented study is a first step towards a full TMD MC generator covering the small-x phase space. |
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Language
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English
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Source (journal)
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Acta physica polonica : B : proceedings supplement. - Cracow, 2008, currens
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Source (book)
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Diffraction and Low-x Workshop, SEP 24-30, 2022, Corigliano Calabro, ITALY
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Publication
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Krakow
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Jagiellonian univ
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2023
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ISSN
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1899-2358
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DOI
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10.5506/APHYSPOLBSUPP.16.5-A46
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Volume/pages
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16
:5
(2023)
, p. 5A461-5A467
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ISI
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001005287600001
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Full text (Publisher's DOI)
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Full text (open access)
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