Journal of Physical Studies 26(1), Article 1101 [6 pages] (2022)
DOI: https://doi.org/10.30970/jps.26.1101

FINE STRUCTURE OF THE PROTON–PROTON AND ANTIPROTON–PROTON DIFFRACTION CONE AT LHC ENERGIES

N. Bence{1} , I. Szanyi{2,3,4} , A. Lengyel{5} 

{1}Uzhhorod National University, 14, Universytets'ka St., Uzhhorod,
{2}Wigner RCP, POB 49, Budapest, 1525, Hungary,
{3}Eötvös University, Pázmány P. s. 1/A, Budapest, 1117, Hungary,
{4}MATE Institute of Technology, Károly Róbert Campus, H-3200 Gyöngyös, 36, Mátrai St., Hungary,
{5}Institute of Electron Physics of NAS of Ukraine, 21, Universytets'ka St., Uzhhorod,
e-mails: bencenorbert007@gmail.com, istvan.szanyi@cern.ch, alexanderlengyel39@gmail.com

Received 17 November 2021; in final form 21 December 2021; accepted 10 January 2022; published online 23 March 2022

The local nuclear curvature $C(s,t)$ as a derivative of local nuclear slope $B(s,t)$ is reconstructed from the experimental differential cross-section of $pp$ and $\bar pp$ elastic scattering for TeV energies in the small-$|t|$ region where the non-exponential behavior of the diffraction cone, i. e. the ‟break” phenomenon is clearly visible. Predictions for $C(s,t)$ are investigated in several Pomeron models. The extreme sensitivity of the local nuclear curvature for the choice of a Pomeron model is emphasized. Only some of them predict a $C(s,t=0)$ or $\langle C(s)\rangle$ which decreases with energy and changes sign at very large energy.

Key words: Pomeron, Odderon, asymptopia, pp and $\bar pp$ elastic scattering, local nuclear curvature, local nuclear slope.

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