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Investigation of the ratio σrF2(Q2/s,Q2) in the momentum-space approach

G. R. Boroun*

  • *Contact author: boroun@razi.ac.ir
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Phys. Rev. C 113, 045208 – Published 13 April, 2026

DOI: https://doi.org/10.1103/nc1k-vlc7

Abstract

I present a calculation of the ratio σrF2(x,Q2) in a momentum-space approach using the Block-Durand-Ha parametrization of the proton structure function F2(x,Q2). The results are compared with the H1 data and extended to high inelasticity. I also examine the ratio σrF2(Q2s,Q2) obtained at a fixed s and Q2 to the minimum value of x given by Q2/s, comparing them with both the HERA data and the color dipole model bounds. These results and comparisons with HERA data demonstrate that the suggested method for the ratio σrF2 can be applied in analyses of the CERN Large Hadron Collider and Future Circular Collider projects. The effect of adding a simple higher twist term of the form F2*H2/Q2 to the description of the ratio σrF2(Q2s,Q2) at low-x and low-Q2 values for comparison with the color dipole bounds and the HERA data is investigated.

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Phys. Rev. C 113, 045208– Published 13 April, 2026
  • Received 11 December 2025
  • Accepted 27 February 2026
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