Matching NLLA+NNLO for event shape distributions

dc.creatorGehrmann, T.
dc.creatorLuisoni, G.
dc.creatorStenzel, H.
dc.date2008-03-05
dc.date2008-07-15
dc.date.accessioned2026-07-07T11:40:39Z
dc.date.available2026-07-07T11:40:39Z
dc.descriptionWe study the matching of the next-to-leading logarithmic approximation (NLLA) onto the fixed next-to-next-to-leading order (NNLO) calculation for event shape distributions in electron-positron annihilation. The resulting theoretical predictions combine all precision QCD knowledge on the distributions, and are theoretically reliable over an extended kinematical range. Compared to previously available matched NLLA+NLO and fixed order NNLO results, we observe that the effects of the combined NLLA+NNLO are small in the three-jet region, relevant for precision physics.
dc.description14 pages, 18 figures; typos corrected, published version
dc.identifierhttps://arxiv.org/abs/0803.0695
dc.identifierhttp://arxiv.org/abs/0803.0695
dc.identifierPhys.Lett.B664:265-273,2008
dc.identifierdoi:10.1016/j.physletb.2008.05.023
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/200317
dc.subjectHigh Energy Physics - Phenomenology
dc.titleMatching NLLA+NNLO for event shape distributions
dc.typetext

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