ar X iv : h ep - p h / 93 07 26 1 v 2 9 S ep 1 99 3 Unquenching the ρ meson Derek

ar X iv : h ep - p h / 93 12 25 0 v 1 9 D ec 1 99 3 Heavy quark supermultiplet excitations

Lorentz-covariant wave functions for meson and baryon supermultiplets are simply derived by boosting SU(2)spin representations corresponding to multiquark systems at rest. 11.30-j,11.30.Cp,11.30.Ly,12.50.Ch Typeset using REVTEX 1

ar X iv : h ep - p h / 98 03 43 3 v 1 2 4 M ar 1 99 8 THEORETICAL STATUS OF THE B c MESON

Theoretical predictions on the B c meson properties are reviewed.

ar X iv : h ep - p h / 03 02 12 9 v 1 1 7 Fe b 20 03 Scalar σ meson effects in radiative ρ 0 - meson decays

ar X iv : h ep - p h / 97 10 50 2 v 1 2 8 O ct 1 99 7 Hadron Spectroscopy from the Lattice

Lattice QCD determinations appropriate to hadron spectroscopy are reviewed with emphasis on the glueball and hybrid meson states in the quenched approximation. Hybrids are discussed for heavy and for light quarks. The effects of sea quarks (unquenching) are explored. Heavy-light systems are presented particularly excited B mesons.

ar X iv : h ep - p h / 99 09 31 2 v 1 9 S ep 1 99 9 Final state interactions : from strangeness to beauty ∗

I give a brief review of final state interactions in meson decays. I describe possible effects of FSI in K, D and B systems, paying particular attention to the description of the heavy meson decays. Available theoretical methods for dealing with the effects of FSI are discussed.