Antihydrogen hyperfine splitting measurement sets new precision record
The ALPHA collaboration at CERN has recently completed a new measurement of the ground-state hyperfine splitting of antihydrogen. The results show that the hyperfine splitting of antihydrogen and ordinary hydrogen agrees within an uncertainty of four parts per million, improving the measurement precision by two orders of magnitude over previous experiments. Antihydrogen tamers: ALPHA team members from the University of Calgary in Canada. Back row, left to right: Pouya Heidari, Reece Stefanyshyn, Abbygale Swadling, Filobateer Ghaly, Sean Wilson, and Alberto Jesus Uribe Jimenez. Front row: Jay Suh (left) and Timothy Friesen. (Photo courtesy of Jay Suh) Antihydrogen consists of...
2026-08-03
