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First observation of the M1 transition ψ(3686)→γη(c)(2S).

M Ablikim1, M N Achasov, D J Ambrose

  • 1Institute of High Energy Physics, Beijing 100049, People's Republic of China.

Physical Review Letters
|September 26, 2012
PubMed
Summary

Researchers measured the M1 transition from psi(3686) to eta_c(2S) for the first time. This provides new insights into charmonium physics and excited states.

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