Abstract

The LHC data on the elastic scattering indicate that the forward slope increase is not consistent with the contributions of the simple Regge poles only with the linear Regge trajectories. The dynamics might be associated with unitarization in the direct channel of reaction. We discuss the problems of the Regge model and provide a respective illustration of the direct-channel option.

Highlights

  • Introduction and Problems with Forward Slope Increase Revealed at the LHC

  • The break in B(s) in the region of s ' 100 GeV should be treated as a signal of the Pomeron dominance, but such a break has not been observed yet. (This conclusion assumes an approximate equality of the diffraction cone slopes of pp and pp elastic scattering in the energy range between CERN ISR and the LHC.)

  • The available experimental results indicate their inconsistency with the Regge model predictions

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Summary

Introduction and Problems with Forward Slope Increase Revealed at the LHC

(This conclusion assumes an approximate equality of the diffraction cone slopes of pp and pp elastic scattering in the energy range between CERN ISR and the LHC.) To this end, there is a problem regarding agreement of the whole set of data for the forward slope of the pp elastic scattering differential cross-section with the Regge model predictions. CERN ISR and the LHC should be thoroughly scanned experimentally with higher statistics without an assumption on the approximate equality of pp and pp diffraction cone parameters This is correlated with the searches for possible signals of the Odderon contributions to the scattering amplitude (cf [11,12] and references therein).

Unitarization and Forward Slope Increase
Conclusions
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