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ISSN - 10637869, EISSN - 14684780, Physics Uspekhi, 2010, vol. 53, 3, p. 219-241

Exotic charmonium

Pakhlova G. V., Pakhlov P. N., Eidel'man S. I.

The most significant results on the spectroscopy, production, and decay of charmonium and charmonium-like states are reviewed. The surprise-filled physics of charmonium is currently attracting great experimental and theoretical atten- tion. Unexpected properties exhibited by numerous discovered states fail to be explained by the theory, which instead suggests the existence in the spectra of charmonium-like particles of exotic systems different from usual bound states. © 2010 Uspekhi Fizicheskikh Nauk, Russian Academy of Sciences.