Measurement of {ital {alpha}}{sub {ital s}}({ital Q}{sup 2}) from the Gross{endash}Llewellyn Smith Sum Rule

Journal Article · Thu Oct 01 04:00:00 EDT 1998 · Physical Review Letters

OSTI ID:303884

Johnson, R A; Vakili, M ^[1]; Kim, J H; Arroyo, C G; Bazarko, A O; Conrad, J; King, B J; Lefmann, W C; McNulty, C; Mishra, S R; Quintas, P Z; Romosan, A; Schellman, H; Sciulli, F J; Seligman, W G; Shaevitz, M H; Spentzouris, P; Stern, E G ^[2]; Bernstein, R H; Lamm, M J ; Marsh, W; McFarland, K S; Yu, J ^[3]; Bolton, T; Naples, D ^[4]; de Barbaro, L ^[5]; Harris, D A; de Barbaro, P; Bodek, A; Budd, H; Sakumoto, W K; Yang, U K ^[6]; Kinnel, T; Smith, W H ^[7]

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1. University of Cincinnati, Cincinnati, Ohio 45221 (United States)
2. Columbia University, New York, New York 10027 (United States)
3. Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)
4. Kansas State University, Manhattan, Kansas 66506 (United States)
5. Northwestern University, Evanston, Illinois 60208 (United States)
6. University of Rochester, Rochester, New York 14627 (United States)
7. 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, Journal Name: Physical Review Letters Journal Issue: 17 Vol. 81; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
DEEP INELASTIC SCATTERING
MOMENTUM TRANSFER
NEUTRINO-NUCLEON INTERACTIONS
PERTURBATION THEORY
QUANTUM CHROMODYNAMICS
QUARK MODEL
SUM RULES