[en] We point out how, in certain models of New Physics, the same combination of couplings occurs in the amplitudes for both D⁰-(bar D)⁰ mixing and the rare decays D⁰ → (ell)⁺(ell)^-. If the New Physics dominates and is responsible for the observed mixing, then a very simple correlation exists between the magnitudes of each; in fact the rates for the decay D⁰ → (ell)⁺(ell)^- are completely fixed by the mixing. Observation of D⁰ → (ell)⁺(ell)^- in excess of the Standard Model prediction could identify New Physics contributions to D⁰-(bar D)⁰ mixing

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[en] Given the remarkable successes of the standard model, it is appropriate that books in the field no longer dwell on the development of our current understanding of high-energy physics but rather present the world as we now know it. Dynamics of the Standard Model by Donoghue, Golowich, and Holstein takes just this approach. Instead of showing the confusion of the 60s and 70s, the authors present the enlightenment of the 80s. They start by describing the basic features and structure of the standard model and then concentrate on the techniques whereby the model can be applied to the physical world, connecting the theory to the experimental results that are the source of its success. Because they do not dwell on ancient (pre-1980) history, the authors of this book are able to go into much more depth in describing how the model can be tied to experiment, and much of the information presented has been accessible previously only in journal articles in a highly technical form. Though all of the authors are card-carrying theorists they go out of their way to stress applications and phenomenology and to show the reader how real-life calculations of use to experimentalists are done and can be applied to physical situations: what assumptions are made in doing them and how well they work. This is of great value both to the experimentalist seeking a deeper understanding of how the standard model can be connected to data and to the theorist wanting to see how detailed the phenomenological predictions of the standard model are and how well the model works. Furthermore, the authors constantly go beyond the lowest-order predictions of the standard model to discuss the corrections to it, as well as higher-order processes, some of which are now experimentally accessible and others of which will take well into the decade to uncover

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[en] Our dispersive sum rule calculation of the electroweak penguin contribution to ((ε')/(ε)) is reviewed. A more recent analysis based on the finite-energy sum rule approach is described. Finally, a new determination of the electroweak penguin contribution to ((ε')/(ε)) is presented

[en] Employing a quantum-chromodynamic framework, we study the existence of quark-antiquark pairs, in addition to the usual valence quarks, within the rest frame of baryons. The structure of such a quark sea is discussed and an estimate of its strength is made using the MIT bag model. A significant amount of sea is found, and its effect on calculated properties of hadrons is 20--30%

[en] The possibility that charged Higgs bosons exist is explored. The role of e⁺e^- experiments carried out above heavy quark thresholds is stressed. Striking experimental signatures are predicted. (Auth.)

[en] We posit the existence of a flavor, color and spin singlet six-quark configuration called the H dibaryon. A wave function for this particle is written down, and its weak decays for a range of possible H-masses are computed. Both ΔS = 2 and ΔS = 1 transitions are considered