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- Elena Accomando
- 1999

In contrast to the old heterotic string case, the (weakly coupled) type I brane framework allows to have all, part or none of the standard model gauge group factors propagating in large extra–dimensions of TeV size. We investigate the main experimental signatures of these possibilities, related to the production of Kaluza-Klein excitations of gluons and… (More)

- Elena Accomando, Timothy L. Barklow, +8 authors Bjorn Wiik
- 1997

We describe the physics potential of ee linear colliders in this report. These machines are planned to operate in the first phase at a center–of–mass energy of 500 GeV, before being scaled up to about 1 TeV. In the second phase of the operation, a final energy of about 2 TeV is expected. The machines will allow us to perform precision tests of the heavy… (More)

The neutralino-proton cross section is examined for supergravity models with R-parity invariance with universal and non-universal soft breaking. The region of parameter space that dark matter detectors are currently (or will be shortly) sensitive i.e. (0.1 − 10) × 10−6 pb, is examined. For universal soft breaking (mSUGRA), detectors with sensitivity σχ̃0 1… (More)

We have calculated the electroweak O(α) corrections to the processes pp → Zγ+X → νlν̄lγ +X, pp → Zγ +X → ll̄γ +X, and pp → Wγ +X → νl l̄γ +X at the LHC, with l = e, μ and νl = νe, νμ, ντ . The virtual corrections are evaluated in leading-pole approximation, whereas the real corrections are taken into account exactly. These corrections are implemented into a… (More)

We consider a four site Higgsless model based on the SU(2)L×SU(2)1×SU(2)2× U(1)Y gauge symmetry, which predicts two neutral and four charged extra gauge bosons, Z1,2 and W ± 1,2. We compute the properties of the new particles, and derive indirect and direct limits on their masses and couplings from LEP and Tevatron data. In contrast to other Higgsless… (More)

WPHACT 2.0 is the new fully massive version of a MC program and unweighted event generator which computes all Standard Model processes with four fermions in the final state at ee colliders. The program can now generate unweighted events for any subset of all four fermion final states in a single run, by making use of dedicated pre-samples which can cover… (More)

The question of CP violating phases in supersymmetry and electric dipole moments (EDMs) is considered within the framework of supergravity grand unification (GUT) models with a light ( < ∼1 TeV) mass spectrum. In the minimal model, the nearness of the t-quark Landau pole automatically suppresses the t-quark cubic soft breaking phase at the electroweak… (More)

- Elena Accomando
- 2005

We give a brief review of some aspects of physics with TeV size extra-dimensions. We focus on a minimal model with matter localized at the boundaries for the study of the production of Kaluza-Klein excitations of gauge bosons. We briefly discuss different ways to depart from this simple analysis.

We have studied the effect of one-loop logarithmic electroweak radiative corrections on WZ and Wγ production processes at the LHC. We present analytical results for the leading-logarithmic electroweak corrections to the corresponding partonic processes d̄u → WZ,Wγ. Using the leading-pole approximation we implement these corrections into Monte Carlo programs… (More)

- Eugenio Pallestrini, Elena Accomando, Milady Gatti
- Acta otorhinolaryngologica Italica : organo…
- 1983