Analytically irreducible ring

In algebra, an analytically irreducible ring is a local ring whose completion has no zero divisors. Geometrically this corresponds to a variety with only one analytic branch at a point.
 proved that if a local ring of an algebraic variety is a normal ring, then it is analytically irreducible. There are many examples of reduced and irreducible local rings that are analytically reducible, such as the local ring of a node of an irreducible curve, but it is hard to find examples that are also normal. gave such an example of a normal Noetherian local ring that is analytically reducible.
Nagata's example.
Suppose that "K" is a field of characteristic not 2, and "K"  is the formal power series ring over "K" in 2 variables. Let "R" be the subring of "K"  generated by "x", "y", and the elements "z""n" and localized at these elements, where 
Then "R"["X"]/("X" 2–"z"1) is a normal Noetherian local ring that is analytically reducible.