Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-41855
Frederix, R; Frixione, S; Melnikov, K; Zanderighi, G (2010). NLO QCD corrections to five-jet production at LEP and the extraction of αs(MZ). Journal of High Energy Physics, (11):050.
PDF (Accepted manuscript, Version 2)
View at publisher
PDF (Accepted manuscript, Version 1)
The highest exclusive jet multiplicity studied at LEP experiments is five. In this paper we compute the next-to-leading order QCD corrections to e + e ‑ annihilation to five jets, essentially closing the (pure) perturbative QCD studies of exclusive jetty final states at LEP. We compare fixed-order perturbative results with ALEPH data. We estimate hadronization corrections to five-jet observables using the event generator SHERPA, which employs the CKKW procedure to combine a reliable perturbative treatment of high-multiplicity jet final states with parton showers. We show that a competitive value of the strong coupling constant left( right) = 0.1156_^ can be extracted from the distribution of the five-jet resolution parameter and the five-jet rate at LEP1 and LEP2.
67 downloads since deposited on 02 Mar 2011
21 downloads since 12 months
|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||07 Faculty of Science > Institute for Computational Science|
|Deposited On:||02 Mar 2011 10:44|
|Last Modified:||06 Jun 2014 05:29|
Users (please log in): suggest update or correction for this item
Repository Staff Only: item control page