In a previous paper, we proposed that a QCD gas that may be a possible candidate for the general theory of gravity (GR) ether may be comprised of ud~du~ exotic mesons. A method to determine the effective mass of the ud~du~ exotic meson and the Friedmann-Robertson-Walker (FRW) metric scale factor equation of state dimensionless parameter, w, by measuring the pseudo-first order β decay rates expected to be inversely proportional to the QCD gas atmospheric density was given. Here, we propose to measure the β decay rate, t1/2, and the earth distance to the milky-way galaxy super massive black hole (SMBH), hSMBH, at the earth aphelion each year for several years, and fit the data with the linear curve: -lnt1/2 = ahSMBH + b. The slope parameter, a, and the free parameter, b, may be used to calculate the Kerr spin parameter and determine if the QCD gas density on the ergosphere remains constant in time, or alternatively, grows in time according to Corley and Jacobson’s proposed black hole laser process.
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