Measurement of the total hadronic cross section in e+e- annihilation at s=29 GeV

von Zanthier C,de Boer W, Grindhammer G, J. Hylen,Harral B,Hearty C, Luis Labarga,J. A. J. Matthews,M. W. Schaad, G. S. Abrams,Adolphsen Ce,Carl W. Akerlof, J. P. Alexander,M. P. Alvarez, A. Baden, J. Ballam, B. C. Barish,Timothy Barklow,B. A. Barnett, J. Bartelt,D. Blockus, G. Bonvicini, A. M. Boyarski, J. Boyer, B. B. Brabson, A. Breakstone, Jean-Marie Brom, F. Bulos,Patricia R. Burchat, D. L. Burke, F. Butler,F. Calviño, R. J. Cence,J. W. Chapman,Cords D, D.P. Coupal,DeStaebler Hc, D. E. Dorfan, J. Dorfan, P. S. Drell,G. J. Feldman,E. Fernandez, R. C. Field,W. T. Ford,Fordham C,R. Frey, D. Fujino,K. K. Gan, George Gidal,T. Glanzman,Gerson Goldhaber, A. Green, Grosse-Wiesmann P,J. S. Haggerty, Gordon H. Hanson, R. Harr,F. A. Harris,Christopher Hawkes,Kenneth G. Hayes,D. Herrup, Clemens A. Heusch,T. Himel, M. Hoenk,D. Hutchinson

Physical Review D（1991）

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摘要

A precise measurement of the ratio R of the total cross section e+e-hadrons to the pointlike cross section e+e-+- at a center-of-mass energy of 29.0 GeV is presented. The data were taken with the upgraded Mark II detector at the SLAC storage ring PEP. The result is R=3.920.050.09. The luminosity has been determined with three independent luminosity monitors measuring Bhabha scattering at different angular intervals. Recent calculations of higher-order QED radiative corrections are used to estimate the systematic error due to missing higher-order radiative corrections in the Monte Carlo event generators. © 1991 The American Physical Society.

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