122032304
epsilon-prime / epsilon: Review and recent progress
The evolution of the theoretical perspective on {epsilon}{prime}/{epsilon} is reviewed. The introduction of the Z{sup O} penguin and the effects of high M{sub t} are discussed, in particular the possibility for {epsilon}{prime}/{epsilon} to be identically zero. Recent calculations of {epsilon}{prime}/{epsilon} based on current estimates and bounds on the input parameters are presented. 41 refs., 13 figs.
120474408
Fine structure of the P states in heavy quarkonium and the nature of the spin-dependent potential
Abstract We discuss the failure of existing theories to agree with the experimental measurements of the fine structure of the χ states of the b b and c c systems. We rule out various possible explanations, such as mixing of the 2P triplet with the 1F triplet. We use thefact that the spin-independent potential is well-determined in the relevant range to extract accurate determinations of expectation values of the spin-dependent potentials providing tests for future theories. We find that the usual ansatz that the q q interaction has effective vector and scalar contributions only is very unlikely to be sufficient to explain the fine structure of the 3 P levels and to accomodate the recent measurement of the mass of the 1 P state in charmounium.
118912831
Physics at DAPHNE
Proceedings of invited lecture at the Zuoz summer school on hadronic aspects of collider physics, August 23-31, 1994, Zuoz, Switzerland. Describes the PHI factory DAPHNE being built at Frascati, Italy, and the physics that can be done there, with emphasis on its potential for studying CP violation.
117191069
Higgs Search at LEP
116811819
Toponium and two-Higgs models
Bounds from B/sup 0/ - anti B/sup 0/ mixing on charged-Higgs-boson masses and couplings in two-Higgs-doublet models are presented. These bounds are comparable to those obtained, with additional assumptions, from the neutral-K-system. The effects of the neutral Higgs bosons of these models on the spectrum and wave function of toponium are discussed. These effects could, in the future, lead to limits on, or the discovery of, these Higgs bosons. 8 refs., 3 figs.
125325652
Fine structure of the P states in quarkonium and the spin dependent potential
10672331
CP and Rare Decays
$CP$ violation experiments, new measurements of the parameters of the neutral \K\ system and searches for rare decays are summarized. Perspectives for the near future are presented.
122588799
Performance of uranium liquid argon calorimeters
Abstract We present results on the performance of a uranium liquid argon calorimeter exposed to electrons, pions and muons up to 150 GeV energy.
120228621
Observation of the Transition $\Upsilon^\prime \to \Upsilon \pi^+ \pi^- \to e^+ e^- \pi^+ \pi^-$
119414507
CP violation in the K system
Abstract CP violation in the K system is pedagogically reviewed. We discuss its manifestations in the neutral K meson systems, in rare K meson decays and of charged K mesons. Results from classical experiments, and perspectives for upcoming experiments are included. We also briefly discuss the possibility of CPT tests.
121035669
The Frascati Laboratory: From ADA to DAФDNE and KLOE