arXiv subjects

V. Ari

Publications and source records attributed to V. Ari.

22 records · Page 2Linked to original sources

arXiv2013

Pair Production of New Heavy Leptons with $U(1)'$ Charge at Linear Colliders

We study the pair production of new heavy leptons within a new $U(1)'$ symmetry extension of the Standard Model. Because of the new symmetry, the production and decay modes of the new heavy leptons would be different from those of three families of the standard model. The pair production cross sections depending on the mixing parameter and the mass of heavy leptons have been calculated for the center of mass energies of $0.5$ TeV, $1$ TeV and $3$ TeV. The accessible ranges of the parameters have been obtained for different luminosity projections at linear colliders. We find the sensitivity to the range of mixing parameter $-1<x<1$ for the mass range $M_{l'}<800$ GeV at $\sqrt{s}=3$ TeV and $L_{int}=100$ fb$^{-1}$

hep-ph↗

arXiv2012

Forward-Backward Asymmetries of Fourth Family Fermions Through the Z' Models at Linear Colliders

We investigate the forward-backward asymmetries in the pair production of fourth family fermions through the new Z' interactions in the e+e- collisions. The Z' boson having family universal couplings can contribute to the pair production of fourth family fermions via the s-channel exchange. The linear colliders will provide a clean environment for the physics of Z' boson to measure its couplings precisely. The effects of the Z' boson to the asymmetries are shown to be important in some parameter regions for different Z' models. Among these parameters, the invariant mass distribution m_FFbar will be an important measurement to constrain the Z' models. Providing the fourth family fermion exist in an accesssible mass range, a chi^2 analysis can also be used to probe the Z' models at linear collider energies.

hep-ph↗

arXiv2010

Pair Production of Fourth Family Charged Sleptons at $e^{+}e^{-}$ Colliders

We study the pair production of $\tilde{l}_{4}$, which is the supersymmetric partner of the fourth family charged lepton, at the $e^{+}e^{-}$ colliders. It is shown that the investigation of this process at ILC/CLIC will give opportunity to differentiate the MSSM with three and four families.

hep-ph↗

arXiv2010

Pair Production of Tau Sneutrinos at Linear Colliders

The pair production of tau sneutrinos in $e^{+}e^{-}$ collisions and their subsequent decays are studied in a framework of the supersymmetric extension of the standard model. We present an analysis for the parameter space (BR vs. mass) which could be explored at the future high energy $e^{+}e^{-}$ colliders.

hep-ph↗