Top cross section in the LHeC and FCC-he energy range

Abstract

Predictions of the top-pair production cross section in electron-proton (ep) collisions at the future circular collider hadron-electron (FCC-he) and the large hadron electron collider (LHeC) in the leading order (LO) and the next-to-leading order (NLO) approximations in perturbative quantum chromodynamics (QCD) are presented. Numerical results for the top structure functions and the ratio of structure functions are computed at the renormalization scale ${\mu }^2=Q^2+4m_t^2$ in the collinear generalized double asymptotic scaling (DAS) approach. These results are presented in terms of the effective parameters of the parameterization of $F_2(x,Q^2)$, where relying on a Froissart-bounded. These quantitative results can be important for future collider experiments at the center-of-mass energy frontier and the improvement of the phenomenological models for the development of the cosmic ray cascades in ultra-high-energy domain. We obtained the uncertainties because of the power-law behavior $x^{-\Delta }$ of the collinear parton distribution functions (PDFs), the factorization, and renormalization scales, on the top properties at high inelasticity for the FCC-he center-of-mass (CM) energy at the NLO approximation.

Will be appear in PLB

References in corpus (8)

• Electron-Ion Collider in China
• Connection of the virtual ${\gamma }^{\ast }p$ cross section of $ep$ deep inelastic scattering to real $\gamma p$ scattering, and the implications for $\nu N$ and $ep$ total cross sections
• Heavy-quark contributions to the ratio F_L/F_2 at low x
• Extracting the longitudinal structure function FL(x,Q2) at small x from a Froissart-bounded parametrization of F2(x,Q2)
• Geometrical scaling behavior of the top structure functions ratio at the LHeC
• Top structure function at the LHeC
• Higher order approximations to the longitudinal structure function $F_L$ from the parametrization of $F_2$ based on the Laplace transformation
• Searching for top quark pair production cross section at LHeC and FCC-eh

Cited by in corpus (3)

• Heavy quark structure functions from unifying the color dipole picture and double asymptotic scaling approaches
• Collinear approach for top quark production at ep colliders
• Probing $|V_{td}|$ in single-top production at $p{e}^{\mp }$ colliders