Comments on low mass dissociation at the LHC in the context of the discrepancy between the ATLAS and TOTEM measurements of $\sigma_{tot}$

Abstract

The cross section for low mass dissociation at LHC energies is estimated in a partly data driven approach. The result is compared to the Monte Carlo estimate from the QGSJET-II-03 model used by the TOTEM experiment in the determination of $\sigma_{tot}$ via the luminosity-independent method. Significant differences are found and possible consequences are explored and discussed.