Kentucky shot 84.2 percent in the second half Saturday.
Georgia's Yante Maten, The Associated Press SEC player of the year, was held to nine points on 2 of 10 shooting.
The Tide came into the game having outscored No. 1-seed Auburn 50-22 in the second half Friday.
"I told [Fox] prior to the game, 'I'd love for you to beat us and get two more and go play in that [NCAA] Tournament and squelch all the crap, ' " Calipari said. Auburn controlled the first half to lead 41-31.
But much as United Kingdom stifled Georgia star Yante Maten on Friday, Sexton never got in gear.
One day after hitting the game-winner as time expired in Alabama's win over Texas A&M, Sexton hit six 3-pointers and made multiple highlight-reel plays against Auburn (25-7).
"We're a team that, if we make threes like that, that's what we can do to people", said United Kingdom coach John Calipari, who will coach in his eighth SEC title game in nine seasons and try to win a fourth straight on Sunday. Hall only played 22 minutes in the game.
Gabriel was on fire from deep en route to tying a career-high in scoring.
Admiral Schofield scored 13 points and grabbed eight rebounds. He only scored five points but he finally made a three point shot.
"I want the team right now to understand that there's as good a chance, no matter what, if we can advance past the first one, there's a pretty good chance that the second one may not be the higher seed or the better seed".
Then he turned to the mostly blue-clad crowd at the Scottrade Center and flapped those wings as an adoring fan base roared for him and teammates playfully pushed him around in a huddle turned mosh pit. Interestingly, leading scorer Kevin Knox passed to Gabriel rather than take a contested shot in the lane.
During their last five games, the Wildcats have scored an average of 79.8 points per game (3.4 above their season average) and allowed an average of 69.0 points per game (1.5 below their season average).
UK, 23-10, also got a lift from Sacha Killeya-Jones. Bryce Brown finished with 11 points but made just 1-of-8 3-pointers. 'Bama trailed by 10 at halftime, then unleashed a Sexton-led barrage that absolutely buckled the Tigers and likely rearranged the NCAA bracket.
Here are the Kentucky vs Alabama game details to follow.
The Alabama Crimson Tide look for another victory after beating Auburn on Friday.
Kentucky's defense seemed to make another second-half Alabama rally unlikely.
Auburn's offense was flowing at the end of the first half. Desean Murray hit his third three-pointer and ripped off five straight points to put the Tigers up by 10 over the Crimson Tide at halftime. Alabama is 19-15 overall.
Washington and Gabriel had big baskets during the time Kentucky took charge.
Kentucky (4) ramped up their game against the Georgia Bulldogs with a resounding 62-49 victory on Friday. Those were the first words out of the star freshman's mouth after the Crimson Tide's second straight triumph in the Southeastern Conference Tournament, an 81-63 victory in the quarterfinals over 16th-ranked Auburn, the top seed.
Auburn men's basketball coach, Bruce Pearl, had to be restrained Friday afternoon as he walked off the court after bumping into Alabama strength and conditioning coach Lou DeNeen after postgame handshakes, our news partners at AL.com reported. As a help defender, he blocked the Tide's first two shots.