Exotic Atoms -1
- Eberhard Widmann (Austrian Academy of Sciences (AT))
Leonid Afanasyev (Joint Inst. for Nuclear Research (RU))
DIRAC experiment at the CERN PS accelerator observes for the first time long-lived states of hydrogen-like atom consisting of $\pi^+$ and $\pi^-$ mesons with lifetimes of about 10−11~s and more. There were observed $436\pm61$ characteristic pion pairs resulting from the long-lived states breakup, that corresponds to a signal-to-error ratio of better than 7 standard deviations. Together with...
Daniel Barna (University of Tokyo (JP))