Phys. Rev. Lett. 79, 1213–1216 (1997)Improved Determination of αs From Neutrino-Nucleon ScatteringReceived 30 January 1997; published in the issue dated 18 August 1997 We present an improved determination of the proton structure functions F2 and xF3 from the Columbia-Chicago-Fermilab-Rochester Collaboration ν-Fe deep inelastic scattering experiment. Comparisons to corrected high-statistics charged-lepton scattering results for F2 from the NMC, E665, SLAC, and BCDMS experiments indicate good agreement for x>0.1 but some discrepancy at lower x. The Q2 evolution of both the F2 and xF3 structure functions yields a value of the strong coupling constant at the scale of mass of the Z boson of αs(MZ2) = 0.119±0.002(expt)±0.004(theory). This is one of the most precise measurements of this quantity. © 1997 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.79.1213
DOI:
10.1103/PhysRevLett.79.1213
PACS:
12.38.Qk, 13.15.+g, 24.85.+p, 25.30.Pt
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