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K. Huitu

Publications and source records attributed to K. Huitu.

60 records · Page 4Linked to original sources
arXiv1996

Single W-boson production in e-γcolliders

Single $W$-boson production in $e^-γ$ collisions with polarized beams is investigated. In the framework of the Standard Model the updated estimates for the measurement precision of photon anomalous coupling parameters $ κ_{ γ},$ $ λ_{ γ}$ at the Next Linear Collider with $ \sqrt{s_{ eγ}}=420$ GeV are obtained. The production of right-handed gauge bosons $ W^-_{ 2 }$ in this collision mode is also analysed. If the associated neutrino is light, the channel would give the best discovery reach for $ W^-_{ 2 }$ in the Next Linear Collider.

hep-ph↗
arXiv1995

The $W_R$ production in $eγ$ collisions

We consider the production of a single right-handed gauge boson $W_R$ in the high-energy $e^-γ$ collisions with polarized beams. If the associated neutrino is light, the reaction will give the best discovery reach for $W_R$ in the Next Linear Collider.

hep-ph↗
arXiv1994

Supersymmetric Left-Right Model and its Phenomenological Implications

We review here our study of a supersymmetric left-right model (SLRM). In the model the $R$-parity is spontaneously broken. Phenomenologically novel feature of the model is the occurrance of the doubly charged particles in the Higgs sector, which are possibly light enough to be seen in the next linear collider. Detection of the doubly charged higgsinos in the next linear collider is discussed.

hep-ph↗
arXiv1994

Slepton pair production in e+e- collision in supersymmetric left-right model

The pair production of sleptons in electron-positron collisions is investigated in a supersymmetric left-right model. The cross section is found considerably larger than in the minimal supersymmetric version of the Standard Model (MSSM) because of more contributing graphs. A novel process is a doubly charged higgsino exchange in u-channel, which makes the angular distribution of the final state particles and the final state asymmetries to differ from those of the MSSM. It also allows for the flavour non-diagonal final states $\tilde e\tildeμ$, $\tilde e\tildeτ$ and $\tilde μ\tildeτ$, forbidden in the MSSM. These processes also give indirect information about neutrino mixings since they depend on the same couplings as the Majorana mass terms of the right-handed neutrinos.

hep-ph↗
arXiv1993

Supersymmetric Left-Right Model and its Tests in Linear Colliders

We investigate phenomenological implications of a supersymmetric left-right model based on $SU(2)_L\times SU(2)_R\times U(1)_{B-L}\,$ gauge symmetry testable in the next generation linear colliders. We concentrate in particular on the doubly charged $SU(2)_R$ triplet higgsino $\tildeΔ$, which we find very suitable for experimental search. We estimate its production rate in $e^+e^-$, $e^-e^-$, $e^-γ$ and $γγ$ collisions and consider its subsequent decays. These processes have a clear discovery signature with a very low background from other processes.

hep-ph↗