AUSTIN, Texas (Ticker) -- Andre Emmett overslept and Brandon Mouton kept Texas Tech in a daze.
Mouton scored 16 of his 21 points in the first half as fourth-ranked Texas built a 13-point lead and cruised to a 77-65 Big 12 Conference victory over the Red Raiders.
Emmett, the conference's leading scorer at 21.5 points per game, was suspended with reserve forward Nick Valdez by coach Bob Knight for missing the morning walkthrough. Both players overslept and the suspensions were announced less than an hour before tipoff.
"It's none of your business," Knight said when asked about the suspension of his star guard. "Let's not worry about someone who didn't deserve to play."
The loss of Emmett was too much to overcome for Texas Tech (14-8, 4-7), which lost to Texas for the 12th straight time.
The Longhorns are 13-1 against Texas Tech since the formation of the Big 12, including a 9-0 mark under coach Rick Barnes.
"There's no denying they're a different team without him (Emmett)," Barnes said. "You can't take the 22 points off the board that he averages and not feel it. I don't have the details of what happened, but I have great admiration for Coach Knight. To be successful in any sport you have to have a team built on discipline and I'm sure he had a reason for what he did."
Emmett could only sit and watch as the 6-4 Mouton drilled 5-of-6 shots from 3-point range in the first half to help Texas open a 44-31 lead.
"I was feeling it," said Mouton, who was coming off a season-high 24-point performance Saturday at Nebraska. "I had some open looks and I took advantage. (Point guard) T.J. Ford had something to do with me getting those looks."
Ford had 15 points on 7-of-11 shooting and seven assists for Texas (18-4, 9-2), which is unbeaten in 12 home games and moved into sole possession of second place in the Big 12 behind Kansas (9-1) and ahead of Oklahoma (8-2) and Oklahoma State (8-2).
Robert Tomaszek scored 14 off the bench for Texas Tech, which lost for the third time in four games. Kasib Powell and Will Chavis added 12 apiece for the Red Raiders.
The Longhorns missed 12 of their first 16 shots from the field, but were tied at 18-18 before Mouton started to heat up.
Mouton hit the first of his five 3-pointers with 8:25 left in the first half to ignite a 14-2 run that put Texas ahead 32-20.
After baskets by Powell and Chavis pulled Texas Tech within 32-24, Mouton connected on a 3-pointer, Brad Buckman hit a free throw and Brian Boddicker hit a 3-pointer to increase the lead to 39-24.
Mouton's fifth 3-pointer gave the Longhorns their biggest lead of the half at 42-26 with two minutes left.
"I honestly think Brandon's shooting well from three right now because he's been better on the defensive end," Barnes said. "That has freed his mind on the offensive end and he's playing with a lot of confidence."
Texas was 10-of-20 from beyond the arc while the Red Raiders hit just 3-of-12 from 3-point range.
Mouton's sixth and final 3-pointer in eight attempts gave Texas a 49-33 lead with 18:23 left in the second half.
Texas Tech pulled within 49-38 on a 3-pointer by Chavis with 17:02 remaining, but the Longhorns scored the next 11 points to virtually seal the game.
Ford started the spurt with two baskets, Sydmill Harris hit a 3-pointer, Boddicker finished a fast break with a two-handed dunk and James Thomas capped it with a layup off a pass by Ford, opening a 60-38 advantage with 14:08 left.
Texas held its biggest lead at 71-48 with 6:02 left before Barnes emptied the bench.