Investigation of pion-induced formation of the eta pi(-) system in a Coulomb field
PHYSICS OF ATOMIC NUCLEI(1999)
摘要
The pion-induced formation of the low-mass system eta pi(-) in the Coulomb field of a beryllium nucleus has been investigated. The measured cross section for the reaction pi(-)Be --> eta pi(-)Be is compared with a theoretical prediction:based on the observed width of the decay eta --> pi(+)pi(-)gamma.
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