Chinese Journal of Physics[V35-No.6]

VOLUME 35, NUMBER 6, PART II

DECEMBER 1997

A Statistically Significant Periodicity in the Homestake Solar Neutrino Data
C. Y. Chang(1), N. E. Huang(2,4), and Z. Shen (3,4) (1) The University of Maryland, U.S.A. (2) NASA Goddard Space Flight Center, U.S.A. (3) Johns Hopkins University, U.S.A. (4) California Institute of Technology, U.S.A. (Received November 17, 1997)
Using the Empirical Mode Decomposition method developed by Huang, et al., we have examined the time dependence of the solar neutrino fluxes measured by the Homestake experiment. Our analysis shows that a prominent feature in the Homestake data is the statistically significant peak found at a frequency of approximately 0.1 . A similar analysis has been applied to the Wolf Index on sunspot numbers. Possible correlation among the Intrinsic Mode Functions of the two analysed data sets can be achieved with a 3.5 year shift in phase.

A Statistically Significant Periodicity in the
Homestake Solar Neutrino Data

C. Y. Chang(1), N. E. Huang(2,4), and Z. Shen (3,4)

(1) The University of Maryland, U.S.A.
(2) NASA Goddard Space Flight Center, U.S.A.
(3) Johns Hopkins University, U.S.A.
(4) California Institute of Technology, U.S.A.

(Received November 17, 1997)

Using the Empirical Mode Decomposition method developed by Huang, et al., we have examined the time dependence of the solar neutrino fluxes measured by the Homestake

experiment. Our analysis shows that a prominent feature in the Homestake data is the statistically significant peak found at a frequency of approximately 0.1

. A similar analysis has been applied to the Wolf Index on sunspot numbers. Possible correlation among the Intrinsic Mode Functions of the two analysed data sets can be achieved with a 3.5 year shift in phase.

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