世界碰撞之处：美国粒子对撞机的终结与新生

The end of a U.S. particle collider lets a next-generation version rise from its ashes By Emily Conover I peeked in on the house-sized particle detector known as STAR just after it took its last-ever snapshot of one of the most extreme types of fireball ever created. Inside, the conditions of the Big Bang had been re-created in miniature by colliding gold atomic nuclei, just as had been done countless times over the 25 years of the detector’s existence. Now that era was nearing its end. Physicist Alex Jentsch took stock of the moment, which he said called for an ambiguous sort of recognition: “Either celebrate or grieve, one of the two.” …