A next-to-next-to-leading order calculation of soft-virtual cross sections

We compute the next-to-next-to-leading order (NNLO) soft and virtual QCD corrections for the partonic cross section of colourless-final state processes in hadronic collisions. The results are valid to all orders in the dimensional regularization parameter Ïμ. The dependence of the results on a parti...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: De Florian, D., Mazzitelli, J.
Formato: JOUR
Materias:
NLO Computations
QCD Phenomenology
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_11266708_v2012_n12_p_DeFlorian
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_11266708_v2012_n12_p_DeFlorian
record_format dspace
spelling todo:paper_11266708_v2012_n12_p_DeFlorian2023-10-03T16:06:51Z A next-to-next-to-leading order calculation of soft-virtual cross sections De Florian, D. Mazzitelli, J. NLO Computations QCD Phenomenology We compute the next-to-next-to-leading order (NNLO) soft and virtual QCD corrections for the partonic cross section of colourless-final state processes in hadronic collisions. The results are valid to all orders in the dimensional regularization parameter Ïμ. The dependence of the results on a particular process is given through finite contributions to the one and two-loop amplitudes, which have to be computed in a process-by-process basis. To evaluate the accuracy of the soft-virtual approximation we compare it with the full NNLO result for Drell-Yan and Higgs boson production via gluon fusion. We also provide a universal expression for the hard coefficient needed to perform threshold resummation up to next-to-next-to-leading logarithmic (NNLL) accuracy. © 2012 SISSA, Trieste, Italy. Fil:De Florian, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_11266708_v2012_n12_p_DeFlorian
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic NLO Computations
QCD Phenomenology
spellingShingle NLO Computations
QCD Phenomenology
De Florian, D.
Mazzitelli, J.
A next-to-next-to-leading order calculation of soft-virtual cross sections
topic_facet NLO Computations
QCD Phenomenology
description We compute the next-to-next-to-leading order (NNLO) soft and virtual QCD corrections for the partonic cross section of colourless-final state processes in hadronic collisions. The results are valid to all orders in the dimensional regularization parameter Ïμ. The dependence of the results on a particular process is given through finite contributions to the one and two-loop amplitudes, which have to be computed in a process-by-process basis. To evaluate the accuracy of the soft-virtual approximation we compare it with the full NNLO result for Drell-Yan and Higgs boson production via gluon fusion. We also provide a universal expression for the hard coefficient needed to perform threshold resummation up to next-to-next-to-leading logarithmic (NNLL) accuracy. © 2012 SISSA, Trieste, Italy.
format JOUR
author De Florian, D.
Mazzitelli, J.
author_facet De Florian, D.
Mazzitelli, J.
author_sort De Florian, D.
title A next-to-next-to-leading order calculation of soft-virtual cross sections
title_short A next-to-next-to-leading order calculation of soft-virtual cross sections
title_full A next-to-next-to-leading order calculation of soft-virtual cross sections
title_fullStr A next-to-next-to-leading order calculation of soft-virtual cross sections
title_full_unstemmed A next-to-next-to-leading order calculation of soft-virtual cross sections
title_sort next-to-next-to-leading order calculation of soft-virtual cross sections
url http://hdl.handle.net/20.500.12110/paper_11266708_v2012_n12_p_DeFlorian
work_keys_str_mv AT defloriand anexttonexttoleadingordercalculationofsoftvirtualcrosssections
AT mazzitellij anexttonexttoleadingordercalculationofsoftvirtualcrosssections
AT defloriand nexttonexttoleadingordercalculationofsoftvirtualcrosssections
AT mazzitellij nexttonexttoleadingordercalculationofsoftvirtualcrosssections
_version_ 1782030850914779136

Ejemplares similares