Observation of a pion mass shift in the
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Toshimitsu Yamazaki
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Article
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1998
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Elsevier Science
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English
β 352 KB
The pion mass shift in the nuclear medium was deduced to be +20 MeV from the recently observed deeply bound ls and 2p states of 7r-in 2Β°TPb, where the observed 7r-binding energies are most sensitive to the local s-wave part of the pion opticM potential, which is related to the pion mass shift.