According to this story from the Boston Globe,the controversial ancient text is not a modern forgery.

An excerpt.

New scientific tests have turned up no evidence of modern forgery in a text written on ancient Egyptian papyrus that refers to Jesus as being married, according to a long-awaited article to be published Thursday in the Harvard Theological Review.

The findings support the argument of Harvard professor Karen L. King that the controversial text, the first-known explicit reference to a married Jesus, is almost certainly an authentic document.

The “Gospel of Jesus’s Wife” was introduced to the world by King at a conference in Rome 18 months ago. The announcement made headlines around the world, and many of King’s academic peers, as well as the Vatican newspaper, swiftly dismissed it as a fake.

King maintains the document was probably part of a debate among early Christians about the role of women, family, and celibacy in spiritual life.

The results of a carbon dating test found that the papyrus probably dates to eighth-
century Egypt, about 400 years later than King originally thought, but still in ancient times.

Retrieved April 10, 2014 from http://www.bostonglobe.com/metro/2014/04/10/new-tests-show-evidence-forgery-gospel-jesus-wife/IusII8b4eI86HgDTKipLhN/story.html