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Radius of Proton at Center-of-Mass Energy 13 TeV


The differential cross-section distribution at center of mass energy \(\sqrt s = 13~\,\,{\text{TeV}}\) at \(~pp\) scattering by TOTEM at LHC is fitted to the linear and quadratic exponential function in the small \(~\left| t \right|\) range of \(~0.04 < \left| t \right| < 0.2\,\,~{\text{Ge}}{{{\text{V}}}^{2}}\). Radius of proton is calculated by Form Factor of proton using Pristine Chou–Yang Model with slope parameter\(~B = 20.39~{{({\text{GeV}})}^{{ - 2}}}\) and found to be invariant due to the non-exponential behavior of diffraction cone at small \(\left| t \right| \approx 0\) or presence of the pion cloud around the nucleon structure.

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Correspondence to Asad Ali.

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Asad Ali, Sarwat Zahra Radius of Proton at Center-of-Mass Energy 13 TeV. Phys. Part. Nuclei Lett. 19, 343–346 (2022).

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  • elastic scattering
  • Chou–Yang model
  • form factor
  • opaqueness