Puzzles in Hyperon, Charm and Beauty Physics

Abstract

Puzzles awaiting better experiments and better theory include: (1) the contradiction between good and bad SU(3) baryon wave functions in fitting Cabibbo theory for hyperon decays, strangeness suppression in the sea and the violation of the Gottfried Sum rule - no model fits all; (2) Anomalously enhanced Cabibbo-suppressed $D^{+}\to K^{\ast +}(s\bar{d})$ decays; (3) anomalously enhanced and suppressed $B\to {\eta }^{\prime }X$ decays; (4) the OZI rule in weak decays; (5) Vector dominance ($W\to \pi ,\rho ,a_1,D_s,D_s^{\ast }$) in weak decays (6) Puzzles in doubly-cabibbo-suppressed charm decays.(7) Problems in obtaining $\Lambda$ spin structure from polarization measurements of produced $\Lambda$'s.

Comments: 5 pages