Yazarlar

• Caliskan, A.(2)
• Kara, S.O.(1)

• MakaleAçık Erişim2020/r/gumushane/14860
  Single production of composite electrons at future sppc-based lepton–hadron colliders

  Caliskan, A.

  We consider the production of excited electrons with spin-1/2 at future SPPC-based electron–proton colliders with center-of-mass energies of 8.4, 11.6, 26.6, and 36.8 TeV. These exotic particles are predicted in the composite models. We calculate the production cross sections and concentrate on the photon decay channel of the excited electrons with the process of ep → e*X → eγX. The pseudo rapidity and transverse momentum distributions of the electrons and photons in the final state have been plotted to determine the kinematical cutoffs best suited for discovery of the excited electrons. By applying these cutoffs we compute 2σ, 3σ, and 5σ contour plots of the statistical significance of the expected signal in the parameter space (L, m*), where L denotes the integrated luminosity of the collider and m* is the mass of the composite electrons.

  İncele
• MakaleAçık Erişim2018/r/gumushane/12941
  Single production of the excited electrons in the future FCC-based lepton-hadron colliders

  Caliskan, A.; Kara, S.O.

  We study the composite electron production at the FCC-based three electron-proton colliders with the center-of-mass energies of 3.46, 10 and 31.6 TeV. For the signal process of ep → e→ X eγX, the production cross-sections and decay widths of the excited electrons have been calculated. The differences of some kinematical quantities of the final state particles between the signal and background have been analyzed. For this purpose, transverse momentum and pseudorapidity distributions of electron and photon have been obtained and the kinematical cuts for discovery of the excited electrons have been assigned. We have finally determined the mass limits of excited electrons for observation and discovery by applying these cuts. It is shown that the mass limit for discovery obtained from the collider with √s = 31.6 TeV (called PWFA-LC-FCC) is 22.3 TeV for the integrated luminosity Lint = 10fb-1.

  İncele