John Henson added 14 points for the Tar Heels (11-2), who won their fifth in a row and avenged last season’s last-second loss to the Longhorns.
North Carolina went on a 13-1 run to build a double-digit lead midway through the first half and never looked back, turning a 39-23 halftime lead into a 24-point margin late in the game.
Barnes was coming off consecutive nine-point performances, but the sophomore looked far more active and assertive against the Longhorns by attacking the rim or posting up on shorter defenders. He made 9 of 15 shots and finished with 10 rebounds, part of North Carolina’s 49-34 advantage on the glass.
J’Covan Brown was one of three players with 16 points for Texas (9-3).
NO. 22 MURRAY STATE 78, TENNESSEE-MARTIN 54
In Murray, Ky., Donte Poole scored 15 points and Murray State remained unbeaten with a victory over Tennessee-Martin in the Ohio Valley Conference opener for both teams.
Ivan Aska added 12 points, seven rebounds and three assists to help the Racers (13-0, 1-0) to their best start in 75 years. The only better start was 16-0 in 1935-36.
SOUTH CAROLINA 62, SE LOUISIANA 43
In Columbia, Malik Cooke and Anthony Gill scored 14 points each to help lead South Carolina to a victory over Southeastern Louisiana.
Cooke overcame an injury to his left eye during the Gamecocks loss to No. 2 Ohio State on Saturday.
He had a deep cut over his left eye and was forced to wear protective goggles against the Lions.
The injury did not seem to effect his vision as the senior was active on both ends with four steals, three assists, three rebounds and two blocks in 32 minutes.
The Gamecocks took control late in the first half when the Lions (5-5) went scoreless for more than nine minutes. South Carolina (5-6) turned a one-point lead into a 12-point advantage until Southeastern Louisiana’s Todd Nelson hit a 3 just before halftime to make it 25-16 at the break.
Elgin Bailey led the Lions with 15 points.
OKLAHOMA 83, SOUTH CAROLINA STATE 48
In Norman, Okla., Steven Pledger scored 22 points and Romero Osby pulled down 18 rebounds to lead Oklahoma (9-1) past South Carolina State.
South Carolina State (4-8) lost its sixth in a row.
Shaquil Barber led the Bulldogs with 12 points.
ALABAMA 69, OKLAHOMA STATE 52
In Birmingham, Ala. Trevor Releford scored 15 of his 19 points in the second half to help shorthanded Alabama beat Oklahoma State (6-5).
The Crimson Tide (9-3), unranked for the first time this season, had lost three of their past four games and leading scorer JaMychal Green didn’t dress because of a right shoulder injury.
VANDERBILT 89, LAFAYETTE 58
In Nashville, Tenn., John Jenkins matched a career-high with seven 3-pointers and scored 27 points to lead Vanderbilt (8-4).
WAKE FOREST 87, UNC WILMINGTON 78
In Winston-Salem, N.C., C.J. Harris scored 23 points and six Wake Forest players reached double figures in a win over UNC Wilmington.
Tony Chennault added 15 points for the Demon Deacons (8-4.