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Long lived states in antiprotonic helium at low densities
It is now well established that a fraction of about 3% of the p's stopped in a helium target survives for a surprisingly long time (tens of microseconds). As suggested by Condo in 1964 the long lifetime of p's in helium is explained by the existence of metastable states of the exotic atom...
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| Lenguaje: | eng |
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2001
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| Acceso en línea: | https://dx.doi.org/10.1016/S0375-9474(01)01171-X http://cds.cern.ch/record/536809 |