Abstract
The results of an experiment on the search for ξ(2.2) andX(2.2) in the radiative decays of the Υ-meson are presented. The experiment was carried out with the MD-1 detector at the VEPP-4 collider. An upper limitB(Υ→γξ)B(ξ→K + K −)<2·10−4 is obtained at 90% C.L. Results are presented on the search for the decay Υ→γX, X→ ϕϕ not previously investigated. For this decay the upper limitB(Υ→γX)B(X→ϕϕ)<3·10−3 is obtained at 90% C.L.
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D. Hitlin: In: Proc. 1983 Intern. Symp. on Lepton and Photon Interactions at High Energies, D.G. Cassel, D.L. Kreinick (eds.) (Laboratory of Nuclear Studies, Cornel Univesity, Ithaca, NY, 1983), p. 746
R.M. Baltrusaitis et al.: Phys. Rev. Lett. 56 (1986) 107
L. Köpke: In: Proc. of the XXIII Intern. Conf. on High Energy Physics, Berkeley, CA, 1986, v. 1, p. 692; Usha Mallik:Preprint SLAC-PUB-4238, 1987
J.E. Augustin et al.: Phys. Rev. Lett. 60 (1988) 2238
B.V. Bolonkin et al.: Preprint 52, ITEP, 1987
D. Aston et al.: Preprint SLAC-PUB-4202, 1987; D. Aston et al.: Nucl. Phys. B301 (1988) 525
D. Alde et al.: Phys. Lett. 177B (1986) 120
H.E. Haber, G.L. Kane: Phys. Lett. 135B (1984) 196; R.S. Willey: Phys. Rev. Lett. 52 (1984) 585; R.M. Barnett, G. Senjanović, D. Wyler: Phys. Rev. D30 (1984) 1529
S. Behrends. et al.: Phys. Lett. 137B (1984) 277
A. Bean et al.: Phys. Rev. 34D (1986) 905
S. Youssef et al.: Phys. Lett. 139B (1984) 332
S.E. Baru et al.: Preprint INP 86-109, Novosibirsk, 1986
S.E. Baru et al.: Preprint INP 87-91, Novosibirsk, 1987
P. Franzini et al.: Phys. Rev. 35D (1987) 2883
S.T. Lowe: Ph. D. dissertation, SLAC-307, 1986
M.S. Chanowitz, S.R. Sharpe: Phys. Lett. 132B (1983) 413; B.F.L. Ward: Phys. Rev. D31 (1985) 2849
S. Godfrey, R. Kokoski, N. Isgur: Phys. Lett. 141B (1984) 439
M.P. Shatz: Phys. Lett. 138B (1984) 209; S. Pakvasa, M. Suzuki, S.F. Tuan: Phys. Lett. 145B (1984) 135; S. Pakvasa, M. Suzuki, S.F. Tuan: Phys. Rev. D31 (1985) 2378; S. Ono: Phys. Rev. D35 (1987) 944
D. Bisello et al.: Phys. Lett. 179B (1986) 294
J. Lee-Franzini: In: Proc. 1987 Inter. Symp. on Lepton and Photon Interactions at High Energies. W. Bartel, R. Rückl (eds.) Hamburg, 1987, p. 139
S.E. Baru et al.: In: Proc. of the Int. Conf. on Instr. for Colliding Beam Physics SLAC, Stanford, 241, 1982; S.E. Baru et al.: Preprint INP 83-39, Novosibirsk, 1983
A.D. Bukin et al.: Preprint INP 84-33, Novosibirsk, 1983
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Baru, S.E., Beilin, M.V., Blinov, A.E. et al. Search for ξ(2.2) andX(2.2) in radiative decays of ϒ-meson. Z. Phys. C - Particles and Fields 42, 505–510 (1989). https://doi.org/10.1007/BF01557654
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DOI: https://doi.org/10.1007/BF01557654