Systematics of exotic cascade decays

Systematics of exclusive B decays.

Rare Φ Decays and Exotic Hadrons

Exotic hadrons re those whose structure differs from the usual q1q2 structure for mesons and q1q2q3 for baryons. Their exotic nature could reveal itself in unusual properties, for example, suppressed or enhanced decays, too wide or too narrow decay widths, or quantum numbers forbidden in the conventional structure. Up to now, among the huge variety of hadrons, about 10 candidates were found whi...

Systematics of Soft Final State Interactions in B Decays.

By using very general and well established features of soft strong interactions we show, contrary to conventional expectations, that (i) soft final state interactions (FSI) do not disappear for large mB, (ii) inelastic rescattering is expected to be the main source of soft FSI phases, and (iii) flavor off-diagonal FSI are suppressed by a power of mB, but are quite likely to be significant at mB...

Spin Determination via Third Generation Cascade Decays

Once new particles are discovered at the LHC and their masses are measured, it will be of crucial importance to determine their spin, in order to identify the underlying new physics model. We investigate the method first suggested by Barr and later extended by others to distinguish between Supersymmetry and alternative models, e.g. Universal Extra Dimensions, in a certain cascade decay. This me...

New CP-violating parameters in cascade decays

We consider decay chains of the type P → M + · · · → f + · · ·, where M is a neutral meson that may mix with its antiparticle M , before decaying into the final state f . P may be either a heavier neutral meson or a charged meson. We perform a rephasing-invariant analysis of the quantities that show up in such cascade decays. If the decay P → M + · · · (or the decay P → M + · · ·) is forbidden,...