UB $30rb. 2nd hour deep stacked AA hand involvcing pearljammed

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2nd hour. blinds 50-100. all 3 of us have very similar 11,000ish stacks, but PJ has us covered by a little. table has been fairly straight forward.

Pearljammed limps UTG for 100. i have AA in mp and raise to 550. button calls and UTG calls. flop is (Q,7,2) rainbow. UTG checks, i bet 1300, the button min-raises to 2600 and UTG immeadiatly jams all-in. action to me?

is this is a fairly easy fold? which one of them has the set? or do they not? what does a mini-raise mean here? what does a overbet jam mean? tks.