Luis Scola, Donald Sloan and Lance Stephenson accounted for all the points in a decisive 12-2 run, thwarting a late charge by the Chicago Bulls and sending the Indiana Pacers, the NBA’s last unbeaten team, to an 97-80 victory Wednesday night. The Pacers are 5-0 for the first time since 1971-72. Paul George had 21 points and six rebounds to lead Indiana, while David West had a season-high 17 points and 13 rebounds. Luol Deng and Derrick Rose scored 17 points each to lead Chicago (1-3). Rose scored only three points in the second half. For three quarters, it was topsy-turvy. Then, with Chicago leading 67-65 with 8:38 left, things changed quickly. Sloan hit a 17-footer to tie the score. Stephenson gave Indiana the lead with a 3-pointer. Scola followed that with consecutive baskets and Stephenson closed the run with another 3 to make it 77-69. The Bulls never seriously challenged again.