Akademik Veri Yönetim Sistemi
Physical Review D - Particles, Fields, Gravitation and Cosmology, cilt.87, sa.3, 2013 (SCI-Expanded)
We investigate the forward-backward asymmetries in the pair production of fourth-family fermions through the new Z′ interactions in e +e- collisions. A Z′ boson with family-universal couplings can contribute to the pair production of fourth-family fermions via the s-channel exchange. Linear colliders provide a clean environment for the physics of the Z′ boson in order to measure its couplings precisely. The effects of the Z′ boson on the asymmetries are shown to be important in some parameter regions for different Z′ models. Among these parameters, the invariant mass distribution mFF̄ will be an important measurement to constrain the Z′ models. Providing that fourth-family fermions exist in an accesssible mass range, a χ2 analysis can be used to probe the Z′ models at linear colliders. © 2013 American Physical Society.