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ISSN - 00213640, EISSN - 10906487, JETP Letters, 1999, vol. 69, p. 97-102

The decay θ→η′ γ

Aul'chenko V. M., Achasov M. N., Bozhenok A. V., Bukin A. D., Bukin D. A., Burdin S. V., Gaponenko I. A., Golubev V. B., Dimova T. V., Dolinskiǐ S. I., Druzhinin V. P., Dubrovin M. S., Ivanchenko V. N., Ivanov P. M., Korol' A. A., Koshuba S. V., Mamutkin A. A., Pakhtusova E. V., Serednyakov S. I., Sidorov V. A., Silagadze Z. K., Usov Yu V., Sharyǐ V. V., Shatunov Yu M.

A search for the process e+e-→θ(1020)→η′(958)γ in the decay channel η′→π+π-η, η→γγ was made in an experiment at the VEPP-2M e+e- collider with the SND detector. Analysis confirms the occurrence of θ→η′γ decay with probability B(θ→η′γ) = (6.7+3.4 -2.9) × 10-5. © 1999 American Institute of Physics.