Europhys. Lett.
Volume 66, Number 5, June 2004
Page(s) 657 - 660
Section The physics of elementary particles and fields
Published online 01 May 2004
Europhys. Lett., 66 (5) , pp. 657-660 (2004)
DOI: 10.1209/epl/i2004-10031-y

Anomalous production of fourth-family up-quarks at future lepton hadron colliders

A. T. Alan1, A. Senol1 and O. Çakir2

1  Department of Physics, Abant Izzet Baysal University - 14280, Bolu, Turkey
2  Department of Physics, Ankara University, 06100 - Tandogan, Ankara, Turkey

(Received 16 March 2004; accepted 8 April 2004)

We investigate the production of fourth-family up-type quarks using effective Lagrangian approach at future lepton-hadron colliders and study the kinematical characteristics of the signal with an optimal set of cuts. We obtain the upper mass limits 500 $\un{GeV}$ at THERA and one TeV at Linac $\otimes$ LHC.

12.60.-i - Models beyond the standard model.

© EDP Sciences 2004