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The Jarlskog rephasing invariant parameter $|J|$ is evaluated using one ofthe six Unitarity Triangles involving well known CKM matrix elements \vud,\vus,~\rub, ~\vcd, ~\vcs~ and ~\vcb. With PDG2000 values of \vud~ etc. asinput, we obtain $|J|=(2.71 \pm 1.12) \times 10^{-5}$, which in the PDGrepresentation of CKM matrix leads to the range $21^o~to~159^o$ for the CPviolating phase $\delta$. The CKM matrix elements evaluated using this range of$\delta$ are in agreement with the PDG CKM matrix. The implications ofrefinements in the input on $|J|$, $\delta$ and CKM matrix elements have alsobeen studied.Comment: 14 pages, 3 figures (eps), updated in the light of latest PDG2000  dat

IMPLICATIONS OF THE UNITARITY TRIANGLE "uc" FOR J, δ AND |VCKM| ELEMENTS

IMPLICATIONS OF THE UNITARITY TRIANGLE "uc" FOR J, δ AND |V_CKM| ELEMENTS