NNLL-fast: predictions for coloured supersymmetric particle production at the LHC with threshold and Coulomb resummation

Autor: Anna Kulesza, Wim Beenakker, Christoph Borschensky, Michael Kramer, Eric Laenen
Přispěvatelé: Sub String Theory Cosmology and ElemPart, Theoretical Physics, IHEF (IoP, FNWI), Theoretical Particle Physics (ITFA, IoP, FNWI), Faculty of Science, Other Research IHEF (IoP, FNWI), Gravitation and Astroparticle Physics Amsterdam, IoP (FNWI)
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Particle physics
Nuclear and High Energy Physics
Scale (ratio)
Logarithm
production [squark]
FOS: Physical sciences
01 natural sciences
High Energy Physics - Experiment
High Energy Physics - Experiment (hep-ex)
High Energy Physics - Phenomenology (hep-ph)
0103 physical sciences
Bound state
Coulomb
scattering [p p]
ddc:530
High Energy Physics
Mellin transformation
Resummation
resummation [gluon]
010306 general physics
numerical calculations
GeneralLiterature_REFERENCE(e.g.
dictionaries
encyclopedias
glossaries)
correction [leading logarithm approximation]
Physics
Large Hadron Collider
higher-order [leading logarithm approximation]
higher-order [correction]
010308 nuclear & particles physics
hep-ex
Coulomb [correction]
new physics
High Energy Physics::Phenomenology
hep-ph
production [gluino]
3. Good health
effect [bound state]
2 [higher-order]
High Energy Physics - Phenomenology
CERN LHC Coll
soft collinear effective theory
Particle
Production (computer science)
High Energy Physics::Experiment
supersymmetry
threshold [resummation]
Zdroj: Journal of high energy physics : JHEP 2016(12), 133 (2016). doi:10.1007/JHEP12(2016)133
The Journal of High Energy Physics, 2016(12):133. Springer Verlag
Journal of High Energy Physics
Journal of High Energy Physics, 2016, 1-25
Journal of High Energy Physics, 2016, 12, pp. 1-25
Journal of High Energy Physics, 133, 1. Springer Verlag
ISSN: 1029-8479
1126-6708
DOI: 10.1007/JHEP12(2016)133
Popis: We present state-of-the art predictions for the production of supersymmetric squarks and gluinos at the Large Hadron Collider (LHC), including soft-gluon resummation up to next-to-next-to-leading logarithmic (NNLL) accuracy, the resummation of Coulomb corrections and the contribution from bound states. The NNLL corrections enhance the cross-section predictions and reduce the scale uncertainty to a level of 5-10%. The NNLL resummed cross-section predictions can be obtained from the computer code NNLL-fast, which also provides the scale uncertainty and the pdf and alpha_s error.
Comment: 23 pages, 6 figures
Databáze: OpenAIRE
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