Production of four jets in LR model

TL;DR

This paper investigates the production of four jets in electron-electron collisions within the left-right-symmetric model, focusing on lepton number violation signals mediated by heavy neutrinos, doubly charged Higgs, and right-handed W bosons.

Contribution

It provides a detailed analysis of four-jet production as a test for lepton number non-conservation in the LR model at future linear colliders, including cross section estimates and sensitivity to heavy particle masses.

Findings

Cross section of 0.01 fb at 1 TeV, 1 fb at 1.5 TeV.

Detection possible below WR threshold with high luminosity.

Sensitivity to heavy neutrino, WR, and Delta(--) masses.

Abstract

We consider the reaction ee -> q,q,qbar,qbar as a test of lepton number non-conservation in the framework of the left-right-symmetric electroweak model. The main contributions to this process are due to Majorana neutrino exchange in t-channel and doubly charged Higgs (Delta(--)) exchange in s-channel with a pair of right-handed weak bosons (WR) as intermediate state. We show that in a linear ee collider with the collision energy of 1 TeV (1.5 TeV) the cross section of this process is 0.01 fb (1 fb), and it will, for the anticipated luminosity of 10**35 cm**(-2)s**(-1), be detectable below the WR threshold. We study the sensitivity of the reaction on the masses of the heavy neutrino, WR and Delta(--).