ar X iv : h ep - p h / 05 09 35 5 v 1 2 9 Se p 20 05 Four Leptons Production in e − e + Collisions from 3 - 3 - 1 Model
نویسندگان
چکیده
We study the process e+e → e+e+e+e for ILC and CLIC energy regimes, in the minimal 3-3-1 model framework. The main contributions, for the production of two bileptons each one decaying into two same-sign leptons, come from s-channel annihilation (via γ, Z and Z ) and t-channel electron exchange. We evaluate the number of events for an extra neutral gauge boson mass MZ′ in the range 1 TeV to 3 TeV. We compare some distributions from 3-3-1 model with the Standard Model background in order to extract a possible signature of the contribution of bilepton and Z ′ for the process. From our analysis we conclude that our results give clear signals for physics beyond the Standard Model in e e colliders. PACS: 12.60.Cn,13.66.De,13.66.Fg,14.70.Pw [email protected], [email protected],[email protected]
منابع مشابه
ar X iv : h ep - t h / 05 09 14 3 v 1 1 9 Se p 20 05 M - theory and the Gross - Neveu model in 2 + 1 dimensions
We discuss a connection between M -theory and the Gross-Neveu model with fermionic fields obeying periodic boundary conditions in 2 + 1 dimensions. In the large-N limit, the latter may be obtained from the former in the limit of vanishing volume of the Liouville dimension. We show how the world-sheet cosmological constant may be obtained from the Gross-Neveu model. At its critical point, which ...
متن کاملar X iv : h ep - p h / 05 09 33 3 v 1 2 8 Se p 20 05 The kaon electromagnetic form factor
We use recent data on K + → π + e + e − , together with known values for the pion form factor, to derive experimental values for the kaon electromagnetic form factor for 0 < q 2 < 0.125 (GeV/c) 2. The results are then compared with predictions of the Vector-Meson-Dominance model, which gives a good fit to the experimental results.
متن کاملar X iv : h ep - e x / 05 09 02 2 v 1 1 6 Se p 20 05 Recent measurements of sin 2 β at BaBar
The angle β is the most accurately measured quantity that determines the Unitarity Triangle. In this article I review the various measurements of this angle performed by the BaBar Collaboration, and discuss their implications in the search for new physics.
متن کاملar X iv : h ep - p h / 05 09 22 9 v 2 2 7 Se p 20 05 UT - 05 - 13 More on Conformally Sequestered SUSY Breaking
We extend our models for conformal sequestering of dynamical supersymmetry breaking with decoupling vector-like matter in several different ways. These extensions enable us to simplify concrete model building, in particular, rendering large gauge group and ad hoc global symmetry for sequestering unnecessary. Conformal sequestering appears highly natural in such circumstances.
متن کاملar X iv : h ep - p h / 05 09 28 6 v 1 2 6 Se p 20 05 Random Matrices
We review elementary properties of random matrices and discuss widely used mathematical methods for both hermitian and nonhermitian random matrix ensembles. Applications to a wide range of physics problems are summarized.
متن کامل