Measurement of {ital {alpha}}{sub {ital s}}({ital Q}{sup 2}) from the Gross{endash}Llewellyn Smith Sum Rule
Journal Article
·
· Physical Review Letters
OSTI ID:303884
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- University of Cincinnati, Cincinnati, Ohio 45221 (United States)
- Columbia University, New York, New York 10027 (United States)
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)
- Kansas State University, Manhattan, Kansas 66506 (United States)
- Northwestern University, Evanston, Illinois 60208 (United States)
- University of Rochester, Rochester, New York 14627 (United States)
- University of Wisconsin, Madison, Wisconsin 53706 (United States)
We extract a set of values for the Gross{endash}Llewellyn Smith sum rule at different values of 4-momentum transfer squared (Q{sup 2} ), by combining revised CCFR neutrino data with data from other neutrino deep-inelastic scattering experiments for 1{lt}Q{sup 2}{lt}15 GeV{sup 2}/c{sup 2} . A comparison with the order {alpha}{sup 3}{sub s} theoretical predictions yields a determination of {alpha}{sub s} at the scale of the Z -boson mass of 0.114{plus_minus}{sup 0.009}{sub 0.012} . This measurement provides a new and useful test of perturbative QCD at low Q{sup 2} , because of the low uncertainties in the higher order calculations. {copyright} {ital 1998} {ital The American Physical Society }
- OSTI ID:
- 303884
- Journal Information:
- Physical Review Letters, Vol. 81, Issue 17; Other Information: PBD: Oct 1998
- Country of Publication:
- United States
- Language:
- English
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