The refs are definately making up for some of the calls that went our way in the first half.
Even besides that though, the Jazz are just playing better in this 3rd quarter. It's that simple. They're ball movement is much better and they're hitting shots. Combine that with us missing shots and you have a 5 point lead at the half turn into a 10 point deficit.
Usually I'm quick to blame the Celtics. But the Jazz came out with a fire they didn't have at the beginning of the game.