"Just playing hard doesn't always work," said head coach Mike Rice. "In the end when it comes down to the last four minutes, you just can't get in your own way."
Officiating came into question after the game, with two late foul calls by referees Joe Lindsay and John Gaffney deciding the game in the final minute.
On the first call, Carter was called for a hand-check that led to Georgetown tying the game at 50. Then with 8.5 seconds on the clock, referees called an off-the-ball foul on Mike Poole that led to the game-winning free throws.
"There were some bizarre plays, some bizarre whistles that, before I get into it I'd like to look on the replay and see if they were the correct call," Rice said. "We do foul, we did play a lot without a purpose as far as our positioning and playing with our hands instead of our feet and our bodies. It was interesting that, in the last two minutes, it was decided by a whistle of a certain individual referee, who decided to take part of himself to decide the game."
Rutgers had two players foul out and was called for twice as many fouls as the Hoyas in the loss.
"That's a part of being on the road in the Big East," said forward Austin Johnson, who fouled out with two minutes left. "It happens sometimes. It definitely messes up the flow of the game. At the same time, we just have to battle through it."
Carter led Rutgers with 14 points on 5-of-13 shooting in 33 minutes. With the clock expiring, Carter missed a contested layup that could have tied the game.
"It was a tough shot," Carter said. " I wanted to get off the ball-screen the way I wanted to and I didn't make the shot."
The Hoyas struggled mightily against the Rutgers defense in the first half, going 0-for-8 from long range and just 13 percent from the floor.
Shooting 41 percent, the Scarlet Knights maintained a small lead over Georgetown throughout the half. A Derrick Randall layup before halftime gave Rutgers a 25-20 lead and a season-low in points allowed at halftime for the Scarlet Knights.
"[Assistant coach Dave Cox] put together a great game plan," Carter said. "We knew all the steps, ... we just didn't finish it out." Rutgers (11-9, 3-4) returns to action Wednesday at the RAC against DePaul.