Some comments on the missing charm puzzle

Charmonium Physics in a Tau Charm Factory

The present status of the charmonium system is reviewed. Emphasis is placed on the following issues: the hadronic decay puzzle; search for the -vector glueball; confirmation of the ~42s) and hcl states; the xc physics. The possibilities at a future Tau Charm Factory are discussed.

Charm Decays

To write a review on charm decays is not an easy task because of the large amount (fortunately!) of experimental results in the recent years. I was forced to make a selection of topics. I am going to discuss with the eyes of an experimentalist: D-D 0 mixing, CP violation, rare decays, charm lifetimes, semileptonic decays, hadronic decays, and the big surprise of the DsJ states. Obviously there ...

B decays into two light pseudoscalar mesons and possible effects of enhanced b → sg

We consider the branching ratios and CP asymmetry in the B meson decays into two pseudoscalar mesons in the generalized factorization approximation. We also investigate the possible effects of the enhanced chromomagnetic interaction b → sg on these exclusive B meson decays that was suggested as a possible solution to the semileptonic branching ratio of B mesons, the missing charm puzzle and the...

A Cicerone for the Physics of Charm

— After briefly recapitulating the history of the charm quantum number we sketch the experimental environments and instruments employed to study the behaviour of charm hadrons and then describe the theoretical tools for treating charm dynamics. We discuss a wide range of inclusive production processes before analyzing the spectroscopy of hadrons with hidden and open charm and the weak lifetimes...

THE RUNNING BFKL: PRECOCIOUS ASYMPTOPIA FOR CHARM AND THE dF2/d log Q 2- PUZZLE a