Abstract
We have studiedD→K *0 π andD→Ka 0 decays in the factorization approximation. The spectator model leads to a color-suppression of\(D^0 \to \bar K_0^{*0} \pi ^0 \). However, due to the smallness off a 0, a similar suppression does not occur for\(D^0 \to \bar K^0 a_0^0 \). We show that the inclusion of annihilation contribution can lift the color-suppression of\(D^0 \to \bar K_0^{*0} \pi ^0 \). We also include final state interactions in a dynamical model whereK (1830) pole in the direct channel dominates the annihilation process.
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For a recent summary see E.H. Thorndike: Proc. of the 1985 Int. Symposium on Lepton and Photon Interactions at High Energies, Eds. M. Konuma and K. Takahashi, p. 406 (1985); R.M. Baltrusaitis et al.: Phys. Rev. Lett. 56 (1986) 2136; C. Bebek et al.: Phys. Rev. Lett. 56 (1986) 1893
R. Rückl: CERN report CERN-TH 4013/84 (1984)
M. Bauer, B. Stech: Phys. Lett. 152B (1985) 350
A.N. Kamal: Phys. Rev. D33 (1986) 1344
H.Y. Cheng: Brandeis report BRX TH-194 (1985); L.L. Chau, H.Y. Cheng: Phys. Rev. Lett. 56 (1986) 1655
Particle Data Group: Review of Particle Properties Phys. Lett. 170B (1986) 1
U. Baur, A.J. Buras, J.-M. Gerard, R. Rückl: Phys. Lett. 175B (1986) 377
F. Hussain, A.N. Kamal: A case for the annihilation process in charm decays. Alberta Thy-17-86; A.N. Kamal, S.N. Sinha: Cabibbo-angle favoredD + s →PP andVP decays. Alberta Thy-18-86
M. Lusignoli, A. Pugliese:D 0 decays and the annihilation contribution. Rome Preprint-515 (1986); M. Bauer, B. Stech, M. Wirbel: Z. Phys. C—Particles and Fields 34 (1987) 103
E. Eichten et al.: Phys. Rev. D21 (1980) 2–3 S. Godfrey, N. Isgur: Phys. Rev. D32 (1985) 189
S.L. Glashow, S. Weinberg: Phys. Rev. Lett. 20 (1968) 224. For an extensive treatment of the scalar meson decay constant see also R. Dutt, S. Eliezer: Nuovo Cimento 8A (1972) 741; S.N. Sinha, R. Dutt: Prog. Theor. Phys. 61 (1979) 245; S. Okubo, V.S. Mathur: Phys. Rev. D1 (1970) 2046; V.S. Mathur, S. Okubo, J. Subba Rao: Phys. Rev. D1 (1970) 2058; P.R. Auvil, N.G. Deshpande: Phys. Rev. 185 (1969) 2043
A.N. Kamal, E.D. Cooper: Z. Phys. C—Particles and Fields 8 (1981) 67
R.H. Schindler: Proc of the 13 SLAC Summer Institute of Particle Physics, 1985 (SLAC Rep. No. 296 (1986))
M. Wirbel, B. Stech, M. Bauer: Z. Phys. C—Particles and Fields 29 (1985) 637
B. Grinstein, N. Isgur, M. Wise: Phys. Rev. Lett. 56 (1986) 298
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Hussain, F., Kamal, A.N. & Sinha, S.N. Cabibbo-angle-favored decays:D→SP . Z. Phys. C - Particles and Fields 36, 199–207 (1987). https://doi.org/10.1007/BF01579135
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DOI: https://doi.org/10.1007/BF01579135