Exotic mesons with double charm and bottom flavor

Bottom Quark Mass from Υ Mesons: Charm Mass Effects

The effects of the finite charm quark mass on bottom quark mass determinations from Υ sum rules are examined in detail. The charm quark mass effects are calculated at next-to-next-toleading order in the non-relativistic power counting for the Υ sum rules and at order αs for the determination of the bottom MS mass. For the bottom 1S mass, which is extracted from the Υ sum rules directly, we obta...

Mesons with beauty and charm: Spectroscopy.

Applying knowledge of the interaction between heavy quarks derived from the study of cc and bb bound states, we calculate the spectrum of cb mesons. We compute transition rates for the electromagnetic and hadronic cascades that lead from excited states to the S0 ground state, and briefly consider the prospects for experimental observation of the spectrum. PACS numbers: 14.40Lb, 14.40Nd, 13.40Hq...

Understanding open-charm mesons

We present a theoretical framework that accounts for the new DJ and DsJ mesons measured in the open-charm sector. These resonances are properly described if considered as a mixture of conventional P−wave quark-antiquark states and four-quark components. The narrowest states are basically P−wave quark-antiquark mesons, while the dominantly four-quark states are shifted above the corresponding tw...

Charm Radiative Decays with Neutral Mesons

Flavor Symmetry and Charm Decays

The application of flavor symmetries, notably SU(3), to charmed particle decays can shed light on some fundamental questions. Often it is useful to know the strong phases of amplitudes in these decays. For example, the relative strong phase inD → Kπ and D 0 → Kπ is important in interpreting decays of B mesons to DX and D 0 X [1, 2]. Such strong phases are non-negligible even in B decays to pair...