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.

5 pages

References in corpus (2)

• Constraints on Light Bottom Squarks from Radiative B-Meson Decays
• On Reconciling Gottfried Sum Rule Violation with Cabibbo Theory

Cited by in corpus (10)

• The Physics of the B Factories
• First Observation of Doubly Cabibbo-Suppressed Decay of a Charmed Baryon: ${\Lambda }_c^{+}\to p{K}^{+}{\pi }^{-}$
• Measurements of the branching fractions of ${\Lambda }_c^{+}\to p{\pi }^{-}{\pi }^{+}$, ${\Lambda }_c^{+}\to p{K}^{-}{K}^{+}$, and ${\Lambda }_c^{+}\to p{\pi }^{-}{K}^{+}$
• Interference between doubly-Cabibbo-suppressed and Cabibbo-favored amplitudes in $D^0\to K_S({\pi }^0,\eta ,{\eta }^{\prime })$ decays
• Observation of the Doubly Cabibbo-Suppressed Decay $D^{+}\to K^{+}{\pi }^{+}{\pi }^{-}{\pi }^0$ and Evidence for $D^{+}\to K^{+}\omega$
• Observation of the Doubly Cabibbo-Suppressed Decay $D_s^{+}\to K^{+}{K}^{+}{\pi }^{-}$
• Search for ${\Lambda }_c^{+}\to p{K}^{+}{\pi }^{-}$ and $D_s^{+}\to K^{+}{K}^{+}{\pi }^{-}$ Using Genetic Programming Event Selection
• Observation of the doubly Cabibbo-Suppressed decays $D^{+}\to K^{+}{\pi }^0{\pi }^0$ and $D^{+}\to K^{+}{\pi }^0\eta$
• Study of the doubly Cabibbo-suppressed decays $D_s^{+}\to K^{+}{K}^{+}{\pi }^{-}$ and $D_s^{+}\to K^{+}{K}^{+}{\pi }^{-}{\pi }^0$
• Measurement of the branching fractions of doubly Cabibbo-suppressed $D$ decays