LAWRENCE, Kan. — The Kansas climb picked up more steam Monday night as the No. 9 Jayhawks knocked off top-ranked Arizona 82-78.Less than a month after falling out of The Associated Press Top 25, Kansas (19-5, 9-2 Big 12) has won eight in a row and clawed its way back into Big 12 title contention, trailing previously unbeaten Arizona (23-1, 10-1) by one game. Houston is currently in second, a half-game ahead of Kansas. The third-ranked Cougars face Utah on Tuesday night.“We couldn’t lose this game,” senior guard Melvin Council Jr. said after knocking off Arizona. “We were just ready and prepared and we knew it was going to be a long game with a bunch of runs.”Kansas trailed by as many as 11 points in the game and did not hold a lead until the clock read 9:32 in the second half. Four Jayhawks finished in double figures, led by Flory Bidunga and Council Jr, who scored 23 points apiece. Bidunga also grabbed 10 rebounds. The Jayhawks played without freshman standout Darryn Peterson, who was experiencing flu-like symptoms and missed the game. Self revealed after the game that Peterson had missed practice on Sunday and didn’t know until about a half hour before the game that he would be unavailable. Despite missing 11 games, Peterson leads the Jayhawks in scoring, averaging 20.5 points. “A lot of teams, this time of year, when you get to early February, they know where their ceiling is, and the great teams are …