Phenomenology of neutral D-meson decays and double-flavour oscillations
Petersburg Nuclear Physics Institute, Gatchina, St.Petersburg, 188350, Russia
Received: 13 August 1998 Communicated by V.V. Anisovich
Abstract
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-
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.
PACS
11.30.Er Charge conjugation, parity, time reversal and other discrete symmetries -
13.25.Ft Decays of charmed mesons -
14.40.Lb Charmed mesons
Copyright Springer-Verlag
