Year: 2005
Type: article
Abstract: We determine the $$c\bar c$$ component of the photon wave function on the basis of (i) the data on the transitions e + e − → J/ψ(3096), ψ(3686), ψ(4040), ψ(4415), (ii) partial widths of the two-photon decays η c0(2979), χ c0(3415), χ c2(3556) → γγ, and (iii) wave functions of the charmonium states obtained by solving the Bethe-Salpeter equation for the $$c\bar c$$ system. Using the obtained $$c\bar c$$ component of the photon wave function, we calculate the γγ-decay partial widths for radial excitation of the 2S state, η c0(3594) → γγ, and 2P states χ c0(3849), χ c2(3950) → γγ.
Source: Physics of Atomic Nuclei
DOI: 10.1134/1.2149087
Authors: V. V. Anisovich, L. G. Dakhno, V. N. Markov, V. A. Nikonov, A. V. Sarantsev
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2016693686