Speaker
Prof.
Tamas Csorgo
(Wigner RCP Budapest and KRF Gyongyos)
Description
The TOTEM experiment has made a precise measurement of the elastic proton-proton differential cross-section at the centre-of-mass energy sqrt(s) = 8 TeV based on a high-statistics data sample obtained with the beta* = 90 optics. Both the statistical and systematic uncertainties remain below 1%, except for the t-independent contribution from the overall normalisation. This unprecedented precision allows to exclude a purely exponential differential cross-section in the range of four-momentum transfer squared 0.027 < |t| < 0.2 GeV^2 with a significance greater than 7 sigma. Two extended parametrisations, with quadratic and cubic polynomials in the exponent, are shown to be well compatible with the data.
In this invited talk, presented for the TOTEM Collaboration, I will also overview the present status, the recent preliminary results and the upgrade plans of the TOTEM experiment at CERN LHC.
Primary author
Prof.
Tamas Csorgo
(Wigner RCP Budapest and KRF Gyongyos)
