In the SND experiment at VEPP-2M e^+e^- collider the phi(1020) ---> eta+gamma ---> 3pi^0+gamma decay was studied. The branching ratio B(phi--->eta+gamma) = (1.246 +- 0.025 +- 0.057)% was measured.
@article{arxiv.hep-ex/9809002,
title = {Experimental study of the decay PHI(1020)--->ETA+GAMMA in multi-photon final state},
author = {M. N. Achasov and S. E. Baru and A. V. Berdyugin and A. V. Bozhenok and A. D. Bukin and D. A. Bukin and S. V. Burdin and T. V. Dimova and S. I. Dolinsky and V. P. Druzhinin and M. S. Dubrovin and I. A. Gaponenko and V. B. Golubev and V. N. Ivanchenko and A. A. Korol and S. V. Koshuba and I. N. Nesterenko and E. V. Pakhtusova and A. A. Polunin and E. E. Pyata and A. A. Salnikov and S. I. Serednyakov and V. V. Shary and Yu. M. Shatunov and V. A. Sidorov and Z. K. Silagadze and Yu. S. Velikzhanin},
journal= {arXiv preprint arXiv:hep-ex/9809002},
year = {2008}
}
Comments
4 pages, 1 figure, 1 table, Submitted to JETP Lett