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ISSN - 09205632, Nuclear Physics B - Proceedings Supplements, 2002, vol. 105, p. 156-159

Muon g - 2 Experiment at Brookhaven national laboratory

Hughes V. W., Brown H. N., Bunce G., Carey R. M., Cushman P., Danby G. T., Debevec P. T., Deile M., Deng H., Deninger W., Dhawan S. K., Druzhinin V. P., Duong L., Efstathiadis E., Farley F. J M, Fedotovich G. V., Giron S., Gray F., Grigoriev D., Grosse-Perdekamp M., Grossman A., Hare M. F., Hertzog D. W., Iwasaki M., Jungmann K., Kawall D., Kawamur M., Khazin B. I., Kindem J., Krienen F., Kronkvist I., Larsen R., Lee Y. Y., Logashenko I., McNabb R., Meng W., Mi J., Miller J. P., Morse W. M., Nikas D., Onderwater C. J G, Orlov Y., Ozben C. S., Paley J. M., Polly C., Pretz J., Prigl R., zu Putlitz G., Redin S. I., Rind O., Roberts B. L., Ryskulov N., Sedykh S., Semertzidis Y. K., Shatunov Yu M., Sichtermann E. P., Solodov E., Sossong M., Steinmetz A., Sulak L. R., Timmermans C., Trofimov A., Urner D., von Walter P., Warburton D., Winn D., Yamamoto A., Zimmerman D.

A precise measurement of the anomalous g value, aμ + = (g - 2)/2, for the positive muon has been made at the Brookhaven Alternating Gradient Synchrotron. The result aμ + = 11 659 202(14)(6) × 10-10 (1.3 ppm) is in good agreement with previous measurements and has an error one third that of the combined previous data. The current theoretical value from the standard model is aμ(SM)= 11 659 159.6(6.7) × 10-10 (0.57 ppm) and aμ(exp)-aμ(SM) = 42(16) × 10-10 in which aμ(exp) is the world average experimental value.