Estimating Word-Association Frequencies

Abstract

14 Ss were given the 6 strongest associates to stimulus words chosen from the Kent-Rosanoff list and asked to estimate the frequency with which each associate occurred. The results indicate a striking tendency for Ss to match the obtained norms throughout the portions of the hierarchy tested. Ability to match the correct rank of the response was best for primary and secondary associations.

Evaluation of hadronic vacuum polarization contribution to muonium hyperfine splitting

“…The inner integral in (5) can be calculated analytically. For the calculation of external integral we have used the parameterization of R(s), which accounts the modern experimental data on annihilation cross section of e + e − into hadrons [5,6,7,8,9,10,11,12,13].…”

“…The cross section of this reaction is proportional to the modulus squared of pion form factor F π . The corresponding spectral function (4) may be presented in the form: Contrary to our recent calculation [14] to perform integrations in (5) for this case we have used the expression of pion form factor, obtained in [15]:…”

“…To obtain the resonance contribution to σ h the Breit-Wigner representation has been exploited. The contribution of σ h background was found by fitting of the experimental points [5,6,7,8,9,10,11,12,13]. For description of the experimental data we have used polinomial fit: R(s) = n k=0 c k ( √ s) k of high order on n. The coefficients c k were determined by means of the least-squares method.…”