With use of a new $ C+N $ amplitude which correctly accounts for CNI to all orders in $\alpha$ the values of the parameters $\rho^{ pp},\sigma_{ \mbox{ tot}}^{ pp}$ and $B^{ pp}$ are analysed on the basis of data published by the TOTEM and ATLAS collaborations at energy $\sqrt{ s}= 13$ TeV . The result of both joint and separate analyses of these data confirmed, in particular, a noticeable difference between the central values of $\sigma^{ pp}_{ tot}$, as measured by the TOTEM and by the ATLAS-ALFA, reaching up to 8 standard deviations.
Categories: hep-ph