Abstract
The interference of and mesons has been studied in the hadronic and leptonic decay channels, i.e., dipion and dilepton decay channels respectively, but this interference has not been studied yet in the semihadronic or semileptonic decay channel, e.g., . denotes either a or meson. To look for this interference in the decay channel as well as the contribution of the meson to the cross section, the correlated invariant mass distribution spectra are calculated in the photonuclear reaction in the multi-GeV region. It is assumed that these bosons arise in the final state due to the decay of and mesons which are photoproduced coherently in the isoscalar nucleus. The elementary reaction in the nucleus is considered to proceed as , . The forward propagation of the and mesons and the near forward emission of pions are considered, so that they can be described by the eikonal form. The meson-nucleus interactions are evaluated using the approximation. Replacing the decay vertex by in the above formalism, it is also used to study the interference in the decay channel.
- Received 24 November 2015
- Revised 26 April 2016
DOI:https://doi.org/10.1103/PhysRevC.94.025204
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