Liverpool manager Gerard Houllier labelled Arsenal's performance as "stunning" after his side's 4-2 defeat.
Thierry Henry's hat-trick put the Gunners seven points clear at the Premiership summit after Liverpool had led twice at Highbury.
Houllier said: "I thought Arsenal were stunning in the second half. They couldn't play any better than that.
"Thierry's second goal was a moment of brilliance. It was wonderful and we never looked like coming back."
Houllier added: "There is no point trying to make excuses because they were better than us.
"The game was decided by that moment from Thierry, because it seemed to affect the morale of our team.
"I said Arsenal were like a wounded animal. We had more chances in the first half, but as soon as they got their second equaliser it gave them a lot of confidence.
"They are a great team. They showed why they are unbeaten in the league and they have got some of the best players in the world.
"It was a mental test for them and I expected them to show something.
"We now have six big games of our own to play, and I don't expect us to be the way we were in the second half."