The outdoor shopping mall at 60 Long Pond Road has new owners and a new name. The former Shops at 5, which is home to a Kohl’s and a BJ’s Wholesale Club, has been renamed The Grove at Plymouth. To celebrate the rebranding and upcoming makeover, the mall will host a Resolution Ball this Saturday from noon to 5 p.m. The free event will feature gift card giveaways, Bruins tickets giveaways, music, and an ice-skating rink. “We’re looking to revitalize the center,” said Abe Tress, director of acquisitions at New York-based Sun Equity Partners, which bought the mall in December. In an interview, Tress said improvements are on the way and signs bearing the mall’s new name will be installed soon.