2020 Impact factor 3.043
Hadrons and Nuclei
Eur. Phys. J. A 4, 21-31

Phenomenology of neutral D-meson decays and double-flavour oscillations

Ya.I. Azimov

Petersburg Nuclear Physics Institute, Gatchina, St.Petersburg, 188350, Russia

Received: 13 August 1998 Communicated by V.V. Anisovich

Decays of neutral D-mesons are considered phenomenologically without invoking any particular models. Special attention is given to cascade decays with intermediate neutral kaons where coherent double-flavour oscillations (CDFO) become possible. We show necessity and unique possibilities of experiments on CDFO. They allow to relate with each other widths and masses of D-meson eigenstates, to separate interference effects due to D0-$\overline D^0$ mixing and/or Cabibbo-favoured vs. doubly-suppressed transitions. Such experiments provide the only known ways to unambiguous model-independent measurements of all CP-violating parameters and of Cabibbo-doubly-suppressed amplitudes, where the New Physics may have more prominent manifestations. Similar experiments would be useful and interesting also for charged D-meson decays to neutral kaons.

11.30.Er Charge conjugation, parity, time reversal and other discrete symmetries - 13.25.Ft Decays of charmed mesons - 14.40.Lb Charmed mesons

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