期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 11, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP11(2010)050
关键词
Jets; LEP HERA and SLC Physics; NLO Computations; QCD
资金
- NSF [PHY-0855365]
- Johns Hopkins University
- British Science and Technology Facilities Council
- Swiss National Science Foundation [200020-126691]
- Direct For Mathematical & Physical Scien
- Division Of Physics [855365] Funding Source: National Science Foundation
- Swiss National Science Foundation (SNF) [200020_126691] Funding Source: Swiss National Science Foundation (SNF)
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 alpha(s)(M-Z) = 0.1156(-0.0034)(+0.0041) can be extracted from the distribution of the five-jet resolution parameter and the five-jet rate at LEP1 and LEP2.
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