IMPROVED DETERMINATION OF ALPHA(S) FROM NEUTRINO-NUCLEON SCATTERING

Authors
SELIGMAN WG ARROYO CG DEBARBARO L DEBARBARO P BAZARKO AO BERNSTEIN RH BODEK A BOLTON T BUDD H CONRAD J HARRIS DA JOHNSON RA KIM JH KING BJ KINNEL T LAMM MJ LEFMANN WC MARSH W MCFARLAND KS MCNULTY C MISHRA SR NAPLES D QUINTAS PZ ROMOSAN A SAKUMOTO WK SCHELLMAN H SCIULLI FJ SHAEVITZ MH SMITH WH SPENTZOURIS P STERN EG VAKILI M YANG UK YU J
Citation
Wg. Seligman et al., IMPROVED DETERMINATION OF ALPHA(S) FROM NEUTRINO-NUCLEON SCATTERING, Physical review letters, 79(7), 1997, pp. 1213-1216
Citations number
34
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
79
Issue
7
Year of publication
1997
Pages
1213 - 1216
Database
ISI
SICI code
0031-9007(1997)79:7<1213:IDOAFN>2.0.ZU;2-C
Abstract
We present an improved determination of the proton structure functions F-2 and xF(3) from the Columbia-Chicago-Fermilab-Rochester Collaborat ion nu-Fe deep inelastic scattering experiment. Comparisons to correct ed high-statistics charged-lepton scattering results for F-2 from the NMC, E665, SLAG, and BCDMS experiments indicate good agreement for x > 0.1 but some discrepancy at lower x. The Q(2) evolution of both the F -2 and xF(3) structure functions yields a value of the strong coupling constant at the scale of mass of the Z boson of alpha(s)(M-Z(2)) = 0. 119 +/- 0.002(expt) +/- 0.004(theory). This is one of the most precise measurements of this quantity.