Accurate measurements of particles masses, couplings and widths are possible by measuring production cross sections near threshold. We discuss the prospects for performing such measurements at a high luminosity muon collider.

Results on the cross section measurement of Z boson pair–production at LEP 1,2 are presented. The more general case of neutral–current four–fermion production and the particular case of ZZ events enriched in b quarks are also discussed. All the results agree with the Standard Model predictions.

1n"a relativistic heavy-ion reaction, there are many processes which contribute to fragmentation phenomenon. Here we examine two: the direct fragmentation process in which the detected proton is emitted from a parent nucleus without additional scattering, and the hard scattering process in which a nucleon from one nucleus makes a collision with a nucleon from the other nucleus. In terms of a co...

In this paper, linear stability analysis of non-prismatic beam resting on uniform Winkler-Pasternak elastic foundation is carried out based on Eringen's non-local elasticity theory. In the context of small displacement, the governing differential equation and the related boundary conditions are obtained via the energy principle. It is also assumed that the width of rectangle cross-section varie...

Rodolfo Dennis ([email protected]) Luis Caraballo ([email protected]) Elizabeth García ([email protected]) María X Rojas ([email protected]) Martín A Rondón ([email protected]) Adriana Pérez ([email protected]) Gustavo Aristizabal ([email protected]) Augusto Peñaranda ([email protected]) Ana María Barragan ([email protected]) Velky Ahumada (velkyahu...

We report on the measurement of the hadronic cross section below 1 GeV at the electron-positron-collider DAΦNE, using the multiple purpose detector KLOE. The radiative return, which is due to initial state radiation (ee → γ+hadrons), allows us to obtain the cross section for variable center-of-mass-energies of the hadronic system from the 2mπ threshold up to 1.02 GeV. This measurement can be pe...

This paper investigates households’ portfolio choice behavior using a structural microeconometric approach obtained by extending the analysis in Fougère, Gouriéroux, Tiomo and Trognon (1997). I assume that households have mean variance expected utility and are forbidden to take short positions in the risky assets. If there are only two such assets, it is possible to derive a closed form solutio...