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Small-x resummation from HELL
Small-x logarithmic enhancements arising from high-energy gluon emissions affect both the evolution of collinearly-factorized parton densities and partonic coefficient functions. With the higher collider energy reached by the LHC, the prospect of a future high-energy collider, and the recent deep-in...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Berlin Heidelberg
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5335595/ https://www.ncbi.nlm.nih.gov/pubmed/28316493 http://dx.doi.org/10.1140/epjc/s10052-016-4445-6 |
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author | Bonvini, Marco Marzani, Simone Peraro, Tiziano |
author_facet | Bonvini, Marco Marzani, Simone Peraro, Tiziano |
author_sort | Bonvini, Marco |
collection | PubMed |
description | Small-x logarithmic enhancements arising from high-energy gluon emissions affect both the evolution of collinearly-factorized parton densities and partonic coefficient functions. With the higher collider energy reached by the LHC, the prospect of a future high-energy collider, and the recent deep-inelastic scattering (DIS) results at small-x from HERA, providing phenomenological tools for performing small-x resummation has become of great relevance. In this paper we discuss a framework to perform small-x resummation for both parton evolution and partonic coefficient functions and we describe its implementation in a computer code named High-Energy Large Logarithms (HELL). We present resummed and matched results for the DGLAP splitting functions and, as a proof of principle, for the massless structure functions in DIS. Furthermore, we discuss the uncertainty from subleading terms on our results. |
format | Online Article Text |
id | pubmed-5335595 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Springer Berlin Heidelberg |
record_format | MEDLINE/PubMed |
spelling | pubmed-53355952017-03-16 Small-x resummation from HELL Bonvini, Marco Marzani, Simone Peraro, Tiziano Eur Phys J C Part Fields Special Article - Tools for Experiment and Theory Small-x logarithmic enhancements arising from high-energy gluon emissions affect both the evolution of collinearly-factorized parton densities and partonic coefficient functions. With the higher collider energy reached by the LHC, the prospect of a future high-energy collider, and the recent deep-inelastic scattering (DIS) results at small-x from HERA, providing phenomenological tools for performing small-x resummation has become of great relevance. In this paper we discuss a framework to perform small-x resummation for both parton evolution and partonic coefficient functions and we describe its implementation in a computer code named High-Energy Large Logarithms (HELL). We present resummed and matched results for the DGLAP splitting functions and, as a proof of principle, for the massless structure functions in DIS. Furthermore, we discuss the uncertainty from subleading terms on our results. Springer Berlin Heidelberg 2016-11-02 2016 /pmc/articles/PMC5335595/ /pubmed/28316493 http://dx.doi.org/10.1140/epjc/s10052-016-4445-6 Text en © The Author(s) 2016 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Funded by SCOAP3 |
spellingShingle | Special Article - Tools for Experiment and Theory Bonvini, Marco Marzani, Simone Peraro, Tiziano Small-x resummation from HELL |
title | Small-x resummation from HELL |
title_full | Small-x resummation from HELL |
title_fullStr | Small-x resummation from HELL |
title_full_unstemmed | Small-x resummation from HELL |
title_short | Small-x resummation from HELL |
title_sort | small-x resummation from hell |
topic | Special Article - Tools for Experiment and Theory |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5335595/ https://www.ncbi.nlm.nih.gov/pubmed/28316493 http://dx.doi.org/10.1140/epjc/s10052-016-4445-6 |
work_keys_str_mv | AT bonvinimarco smallxresummationfromhell AT marzanisimone smallxresummationfromhell AT perarotiziano smallxresummationfromhell |