119472393
Physics at DAFNE2
The original plan of a vigorous program of frontier physics at LNF, based on the phi-factory DAFNE with the KLOE detector, has not yet reached its major aim in the study of discrete symmetries in the neutral kaon system. It has however led to the education of a new generation of particle and accelerator physicists. With such invaluable human resources it seems appropriate to consider a renewed effort in achieving much improved collider performance. It will be argued in the following that it is still possible to envision a program of superior quality physics, requiring several years and broad enough to justify a new collider operating at the phi-meson mass. It remains of paramount importance that the program covers topics of fundamental interest, with many collateral avenues well connected to the ultimate goal, a most sensitive test of CPT invariance. The appropriate time frame for these ventures to be successful is quite well defined, in view of the large LHC effort to begin towards the end of the present decade.
124952299
The decay sigma-plus(minus) ---> lambda + positron(electron) + neutrino
185411222
CP in K and B decays
125185394
CHARGED SIGMA HYPERON DECAYS INTO MUONS
115880474
The muon gyromagnetic ratio and e+e- annihilations
118043522
Where are the Higgs
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.
125323027
TOPONIUM - Z0 INTERFERENCE AND PHENOMENOLOGY OF A EXTRA Z0 in e+ e- COLLISIONS
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.
109126633
Toponium-Z0 Interference
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.