THE paparazzi in Israel have been swarming the town of Hod Hasharon, 20 miles outside Tel Aviv, trying to get a glimpse of Leonardo DiCaprio, who is there visiting the family of his girlfriend, Israeli model Bar Rafaeli. Reporter Oron Dan told Page Six that the Yad Vashem Museum stayed open after hours for the couple, whose flight from Frankfurt happened to include 10 journalists returning from Dublin, where they’d seen “Mamma Mia.” Rumor has it the press swarm may stop DiCaprio and Rafaeli from attending the birthday of her brother, Neil Rafaeli, at a club in Tel Aviv.